IPD
IPD Competition Plenum Porsche 981 Boxster Spyder-Cayman GT4
from $995.00
IPD Competition Plenum for Porsche 981 Spyder/GT4
Once again, Porsche left the door open for engine performance improvements with the 981 Boxster Spyder and Cayman GT4. Using the same factory intake found on the less-powerful 981 S and GTS models, despite using the 911 Carrera S 3.8L engine, the intake's 74mm throttle body limits power and torque to keep the 981 from treading too close to the 911. As a result, Porsche's 991 Carrera S delivers 420 HP while the GT4 makes 385 HP with the same engine.
Why does the GT4 produce 35 fewer horses? (The GT4 engine is only 15 HP stronger than the base Carrera 3.4L engine!) The Carrera S engine, with its 82mm throttle body, benefits from the IPD Plenum, so it figures the GT4 would really benefit from an IPD Competition Plenum and 82mm throttle body.
Initial dyno tests performed in Germany showed gains of 18 HP and 17 lbs-ft. of torque at the GT4's wheels. Considering that the 981's ECU requires more adaptation time than other Porsche models (over a hundred miles for the full adaptive process), this means the full performance gains for the GT4 will be even greater.
Thunderhill installed the IPD Competition Plenum and 82mm TB on our GT4 and were immediately impressed with the increased mid-range and top-end power and torque, and throttle response. The IPD plenum delivers net gains throughout both power and torque curves, helping the GT4 compete with its GT3 big brother.
This plenum requires a Bosch 82mm throttle body, which can be added to your order above for only $225 (save $100).
IPD
IPD Competition Plenum Porsche 987.2 DFI Boxster-Cayman (All)
from $995.00
IPD Competiton Plenum for Porsche 987.2 DFI Boxster/Cayman
Porsche's DFI (Direct Fuel Injection) intake in the 987.2 Boxster/Cayman (2009-2012) was a totally and completely redesigned intake system developed to improve performance, fuel consumption and emissions by optimizing the air fuel mixture directly inside the combustion chamber.
The DFI Porsche engine package is a finely-tuned performance machine and additional power proved difficult to find. The unique design of Porsche's new DFI intake system posed very challenging tuning hurdles.
As usual, however, Porsche left the door open for engine performance improvements with the 987.2 Boxster and Cayman. Porsche is famous for controlling Boxster and Cayman engine output by choking the inlet tract with a less-than-optimum throttle body. This has handicapped the smaller Porsches from treading on 911 Carrera territory.
Once again, IPD developed a design that out-performs the factory intake system without compromising reliability and drive-ability, bringing the Cayman and Boxster much closer to the performance of the 911!
This innovative and revolutionary IPD DFI Intake Plenum employs the patented "Y" design as well as an enlarged plenum area that allows for improved intake air speed and air velocity resulting in performance increases without any power losses.
This plenum requires a Bosch 82mm throttle body, which can be added to your order above for only $225 (save $100).
IPD
IPD Intake Plenum Porsche 997.2 Carrera S 3.8L
$995.00
IPD Intake Plenum for Porsche 997.2 911 Carrera S (3.8L)
Porsche’s DFI (Direct Fuel Injection) intake was a completely redesigned intake system developed to deliver improved performance, fuel consumption and lower emissions by optimizing the air fuel mixture directly inside the combustion chamber.
The DFI Porsche engine package is a finely-tuned performance machine and additional power has proved difficult to find. The unique design of Porsche’s new DFI intake system posed challenging tuning hurdles but once again IPD developed a design that out-performs the factory intake system without compromising reliability and drive-ability.
This innovative and revolutionary IPD DFI Intake Plenum employs the patented “Y” design as well as an enlarged plenum area that allows for improved intake air speed and velocity resulting in increased performance.
The all new specifically designed IPD 3.8L DFI intake Plenum is a direct bolt-on upgrade that replaces the factory air intake distributor and utilizes all pre-existing factory hardware and throttle body.
The improved IPD intake design allows for smoother, less turbulent and more efficient air flow resulting in impressive power and torque gains for Porsche driving enthusiasts.
The superior design of the DFI IPD Plenum provides an additional 15 HP at the wheels. Unlike previous naturally aspirated IPD plenums that delivered stronger gains in the mid range, the new IPD DFI Plenums deliver a similar shaped power curve as the factory but is considerably stronger from the mid-RPMs to redline without any loses in power down low.
Installation of the IPD 3.8L DFI Plenum is relatively straight forward and can be installed by mechanically inclined DIY customers, though IPD strongly recommends installation be performed by a trained and qualified Porsche technician.
IPD
IPD Y Pipe Porsche 997.1 Turbo-Turbo S (2007-09)
$995.00
GET IT CUSTOM POWDER-COATED TO MAKE YOUR ENGINE BAY POP!
The revolutionary 997.1 Turbo/Turbo S IPD Y-pipe was built for the more demanding Porsche Turbo performance customer. This is not a cast reproduction of the factory Y-pipe but a complete re-design from scratch, developed to deliver greater air flow for both stock and highly modified Turbos.
The factory Y-pipe becomes restrictive when adding substantial power gains. The IPD Y-pipe has larger inlets and an optimized diversion area allowing for even greater power gains. This superior and more efficient design flows 126 CFM higher than the factory Y-pipe, delivering the additional power needed to raise the performance bar on any Turbo.
Bigger isn’t always better, and the IPD Y-pipe is designed to deliver optimum flow without being so large that it causes a loss in boost response. These Y-pipes can be custom powder coated in dozens of colors, ceramic coated, or polished to add drama to the aesthetic appeal of your Turbo engine.
The IPD 997.1 Turbo/Turbo S Y-pipe is designed to be a direct replacement of the factory OEM Y-pipe. There are no modifications or fabrication required for installing the IPD Y-pipe. This is an easy and straight forward bolt on upgrade.
IPD
IPD Y Pipe Porsche 997.2 Turbo-Turbo S (2010-12)
$995.00
IPD Intake Y-Pipe for Porsche 997.2 Turbo/Turbo S
The revolutionary 997.2 Turbo IPD Y-Pipe was built for the most demanding Turbo performance customer. This is not a cast reproduction of the factory Y-pipe; it is a complete re-design from scratch, developed to deliver greater air flow for both stock and highly-modified Porsche 997.2 Turbo or Turbo S engines.
The factory Y-pipe becomes restrictive when adding substantial power gains, particularly when you increase boost. The IPD Y-Pipe has larger inlets and a dimpled flow-optimized diversion area, removing the restrictions of the stock pipe. This superior more efficient design flows 126 CFM more than the factory Y-pipe delivering the additional capacity needed to raise the performance bar on the 997.2 Turbos.
Bigger isn't always better, and the IPD Y-Pipe is designed to deliver optimum flow without being so large as to cause a loss in boost response.
The IPD 997.2 Turbo Y-Pipe is designed to be a direct replacement of the factory OEM Y-Pipe. There are no modifications or fabrication required for installing the IPD Y-Pipe. This is an easy and straight forward bolt-on upgrade.
CMS Performance
CMS Performance Deluxe Harness Bar For C8 Corvette
$995.00
CMS Performance Deluxe Bolt-In Harness Bar For C8 Corvette
This Harness Bar Fits the Following Cars:
2020+ Chevrolet Corvette Stingray (C8)
2023+ Chevrolet Corvette Z06 (C8)
Does not fit Convertible or Roadster
Click Here For Installation Instructions
The Best C8 Corvette Harness Bar in the World
The C8 Corvette is an incredible, affordable track-day car that easily achieves race car performance on track. Managing that kind of performance wearing nothing but a three-point seat belt is a chore and leaves a lot to be desired in terms of safety. That's where we come in with the CMS Performance C8 Corvette Deluxe Harness Bar. Featuring the same rock-solid, high-strength design as our standard C8 Harness Bar, the Deluxe bar adds an innovative "main hoop" design, giving it a more aggressive look. This also gives you a place to mount an in-car motorsports video camera, like the AiM Sports SmartyCam GP HD. Of course, it provides high-strength mounting points for your harness shoulder straps to keep you firmly and safely in your seat.
The C8 Deluxe Harness Bar is the strongest, most elegantly designed C8 harness bar on the market. It seamlessly integrates into your C8 interior, preserves your rear view, and gives the C8 a big bump in cool factor, especially with a custom powder-coat color! The CMS C8 Deluxe Harness Bar allows full seat travel while locating your harness shoulder belts at the proper height for maximum on-track safety and security.
Installation requires no drilling or other modification of the chassis, and no modification of your upper center console trim. Some modification of your B-pillar lock/seat belt trim panels is required. We offer precision pre-cut panels to ease installation and save your originals if you need to put your C8 back to stock.
Corvette C8 Deluxe Harness Bar is Made in the USA
Every CMS C8 Deluxe Harness Bar is handcrafted in America by master fabricators for a perfect fit, beautifully 360o TIG welded for high strength, and fully powder-coated in our facility for a brilliant, durable finish. And there's no extra charge for custom colors. CMS operates a complete powder-coating facility to offer you color-matched Corvette factory colors, giving your C8 a customized look that will last.
CNC mandrel bent and fully TIG welded from premium Docol R8 Advanced High-Strength Steel (stronger than 4130 CrMo or DOM) and finished in rich powder-coat.
Complete, detailed instructions make installation pretty simple (figure about an hour if you're reasonably handy).
Add The Best Harnesses For The C8 Corvette
Add optional four-point Sabelt Silver Series or Schroth Profi II ASM four-point harnesses along with the CMS Performance Harness Install Kit, and your C8 Corvette is ready to hit the track with significantly upgraded driver and passenger safety. These harnesses were specifically designed for use in street cars with no sub strap pass-through in the seat.
CMS Performance C8 Corvette Deluxe Harness Bar Details:
Materials: 1.50″ x .095" Docol R8 Advanced High-Strength Steel for superior safety
Construction: Full 360o TIG welding for ultimate strength, integrity, and beauty
Finish: Custom-color powder coating in any color you can imagine
Weight: 24 lbs. (10.9 kg)
Features: Unobstructed rear view; designed, built, and finished in the USA, allows full seat travel with any seat
Comes with all necessary hardware
This product is intended for off-road, race track use only.
Sparco
Sparco Eagle RS8.2 Auto Race Driver Suit FIA 8856-2000
$995.00
$1,599.00
Sparco Eagle RS8.2 Driver Suit
SAVE $$$
The Eagle RS-8.2 suit uses a combination of Hocotex and Eagle fabrics to produce an ultra lightweight and breathable race suit. With the aim of obtaining a closer and more modern fit, preformed armholes have been used, and, in line with the requirements linked to driver mobility during a race, the elasticized panels have been optimized (armholes, sides and elasticized back). The main structure of the suit, like in the previous version, is the tried and tested characteristic Hocotex, (single-layer multilayer weave 0.6 mm ultra-thin fabric), combined with other accessory fabrics, among which Eagle elasticized fabric (by now well-known and used in various Sparco models), and panels in contrast in flat ultralight cloth for anti-abrasion reinforcements on the legs and arms. Stitched quilting made with thin yarn, concealed pockets, preformed neck and belt with the characteristic Sparco logo. Extractor flap inserted in the armhole (characteristic and especially comfortable, especially not interfering with the positioning of the Hans).
TECHNOLOGY:
The suit weighs only 290/320 gr per square meter.
Pre-curved Arms and Legs
Strategic Stretch panels
Available in sizes 48-66
FIA 8856-2000 Approved.
Sabelt
Sabelt Titan Racing Seat
$989.00
Sabelt Titan Racing Seat
Through the years, the Sabelt Titan racing seat design was known for being simple and elegant. The new Titan maintains that tradition while introducing a more rounded design aimed at removing weight from the seat. This latest Sabelt Titan racing seat was developed in partnership with the best companies working in GT Championships.
The result is a racing seat that's both light weight and incredibly comfortable. Offered in two sizes (Standard and Max) to accommodate a wide range of drivers, the Titan is beautifully upholstered and offers excellent breathability. It has quickly become one of our favorite racing seats.
FEATURES:
FIA 8855-1999 homologation.
Standard weighs 20.9 lbs (9.5 kg).
Max weighs 21.8 lbs (9.9 kg).
Side bolstering to prevent lateral movement.
Six-point harness ready (sub-belt hole in the bottom of the shell).
High-wear velour fabric throughout.
Breathable mesh 3D fabric on backrest and bottom.
Anti-slip Kinderpoint fabric on shoulders.
OMP
OMP HRC-R Racing Seat
from $979.00
OMP HRC-R Racing Seat
The OMP HRC-R is a new racing seat from OMP with a fiberglass shell and high protection shoulder and head containment. This seat is designed to allow installation and comfortable driving positions in GT cars with reduced internal cockpit room. Fire-resistant Airnet and velour upholstering. Predrilled shell to allow cooling kit installation.
FEATURES:
FIA 8855-1999 homologated.
Gel-coated fiberglass shell.
Weight: 22.4 lbs. (10.2 kg).
Side mount only.
Brey Krause
Brey Krause R-1125 Harness Bar C7 Corvette (All)
$968.93
Brey Krause R-1125 Harness Bar C7 Corvette
This Roll Bar Fits The Following Cars:
C7 Corvette Stingray, Z51 Coupe (2014-2019)
C7 Corvette Z06 Coupe (2016-2019)
C7 Corvette ZR1 Coupe (2019)
The Brey Krause Model R-1125 Harness Bar for the C7 Corvette properly locates and supports racing shoulder harnesses relative to the driver. In the case of an accident, it helps protect the driver's shoulders and spine. The harness guides also prevent excessive shifting and fatigue of the driver during the high G-force loads of cornering and braking. Brey Krause bars are easy to install and remove, and will get you ready for the track in just a few hours!
Note: Because of mounting locations in the C7, the B-pillar plastic sail panel covers will require a slot on either side to be cut. Sail panel replacements can be ordered from your GM dealer if you don't want to cut the original panels (Part 23176134 for driver side, and part 23176135 for passenger side). Strength requirements for harness mounts are considerably greater than those for harness guide bars since they must support the entire load applied to the belts.
Brey Krause C7 Harness Bar Details:
Material: Type 304 stainless steel
Finish: Powder coated in durable black wrinkle-finish
Weight: 17.12 lbs
Installation: Bar attaches to factory mounting points in B-pillars
IPD
IPD Competition Plenum Porsche 991.2 Turbo-Turbo S (2017+)
from $950.00
IPD Competition Intake Plenum for Porsche 991.2 TT/TTS
FITS: Porsche 991.2 Turbo/Turbo S (2017+)
The 991.2 Turbos don't substantially benefit from any one particular upgrade, but the sum of IPD's improvements in the intake tract deliver a superior overall 991.2 Turbo/Turbo S compared to the already impressive stock car.
Porsche made a number of substantial upgrades to the 991.2 Turbo engine, including revised intake ports, larger injectors, a higher-volume fuel pump, larger turbo compressor wheels and more efficient intercoolers. But the factory intake system remained relatively unchanged from the 991.1, giving IPD a window of opportunity to upgrade and improve it.
The IPD 991.2 Turbo Competition Plenum delivers excellent engine power and torque gains that raise the performance of the already potent supercar (as well as the hair on the back of your neck). Horsepower gains are made throughout the power band, with the bulk being realized between 3500-5000 RPM. Max gain of 45 wheel horsepower come at 4300 RPM and hold strong all the way to redline. Torque is even more impressive at 60 lbs-ft. in the midrange with a massive torque gains from 3500-5000 RPM.
When combined with the IPD 991.2 Turbo Y-Pipe, available in the drop-down above, gains jump to 70 lbs-ft. of torque and 50 wheel horsepower!
IPD
IPD Intake Plenum Porsche 991.1 Carrera 3.4L
$950.00
IPD Intake Plenum for Porsche 991 Carrera 3.4L
FITS: Porsche 911 Carrera (2011-2015)
The 991 Carrera is arguably one of the sexiest Porsches to come out of Stuttgart. But like most Carreras, power output is controlled to meet a performance target below the Carrera S, one that satisfies the masses but not necessarily the dedicated Porsche driving enthusiast. IPD helps scratch the proverbial performance itch for Porsche drivers looking to elevate the already visceral driving experience to the next level.
The 3.4L engine in the 991 is relatively unchanged from the previous 997.2 Carrera. It continues to employ the 82mm throttle body just like the Carrera before it. IPD's new specifically-designed 3.4L DFI Carrera intake plenum is a direct bolt-on upgrade that replaces the factory air distributor and utilizes all pre-existing factory hardware including the OE factory throttle body.
INCREASED POWER & TORQUE ACROSS THE REV RANGE
The improved IPD intake design creates increased air velocity and air speed resulting in impressive power and torque gains of 15 HP and 14 lbs-ft. at the wheels on an otherwise-stock 991. As with most IPD plenums, the bulk of the power gains are realized in the mid-range where they are most used and enjoyed. Unlike other mods, though, the IPD Plenum delivers net power gains across the entire rev range.
Installation time is four to five hours and should only be performed by a qualified Porsche technician. Feel free to give us a call at (844) 438-7244 with any questions!
IPD
IPD Intake Plenum Porsche 997.1 Turbo (74mm TB)
$950.00
IPD Intake Plenum for Porsche 997.1 Turbo
Designed for the 74mm throttle body to maximize performance and durability!
FITS: Porsche Carrera Turbo (2007-2009)
In 2007, the incredible 997 Porsche Turbo was the most revolutionary and capable Porsche Turbo to ever come out of Germany. This already-explosive power can be further increased with the 997.1 Turbo IPD Intake Plenum.
The patented IPD Plenum design unlocks power and torque increases over factory power curves from launch to redline. Maximum power increases take place in the midrange where they're most needed and most critical. The 997 Turbo ECU requires an adaptation period through either a series of hard pulls on the dyno or 10 to 50 miles of hard driving (on a closed-circuit or race track).
Turbo customers looking to increase engine power and torque without pushing the motorsport envelope to redline would best benefit from the 74mm IPD Turbo Plenum. This version of the plenum uses the factory 74mm throttle body and delivers impressive performance gains for both stock and slightly modified Turbos with exhaust and software. To push beyond these performance mods, we recommend upgrading to the larger IPD Intake Plenum for 82mm Throttle Body .
Add IPD's extraordinary high-flowing 997.1 Turbo Y-Pipe for even more dramatic increases in horsepower and torque. This IPD Plenum and Y-Pipe are designed to work perfectly together.
We recommend installation of this IPD Plenum be performed by a qualified and trained Porsche technician.
Girodisc
D1-102 Girodisc Front Replacement Rotor Rings
$950.00
FITS: FERRARI 430 CHALLENGE
REPLACEMENT ROTOR DISC ONLY, DOES NOT INCLUDE ALUMINUM HAT.
Thunderhill is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country. We ship most products same or next business day to ensure we meet your delivery deadline.
The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary.
The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by grade12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors.
The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling.
Sold/Priced per pair.
Girodisc
D2-102 Girodisc Rear Replacement Rotor Rings
$950.00
FITS: FERRARI 430 CHALLENGE
REPLACEMENT ROTOR DISC ONLY, DOES NOT INCLUDE ALUMINUM HAT.
Thunderhill is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country. We ship most products same or next business day to ensure we meet your delivery deadline.
The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary.
The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by grade12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors.
The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling.
Sold/Priced per pair.
Girodisc
D1-110 Girodisc Front Replacement Rotor Rings
$950.00
REPLACEMENT ROTOR DISC ONLY, DOES NOT INCLUDE ALUMINUM HAT.Thunderhill is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country. We ship most products same or next business day to ensure we meet your delivery deadline.
The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary.
The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by grade12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors.
The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling.
Sold/Priced per pair.
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