Circuit Spec R
-10%
Eibach Sportline Lowering Springs - Toyota Corolla Hatchback (2019+)
-10%
$350.00
$388.00
Eibach's SPORTLINE-KIT delivers maximum handling performance with lower center-of-gravity and track focused spring design, without compromising ride quality. Extreme Performance Meets Extreme Style. Race-Car Like Handling. Lower Center of Gravity. Stop Quicker, Corner Faster and...
-4%
Megan Racing OEM Replacement Rear Balljoints - Mitsubishi Lancer Evolution EVO 8/9 (2003-2007)
-4%
$109.95
$115.00
Replacement rear balljoint for the Evo 8 and 9. Direct replacement of OEM.
Applications:-Mitsubishi Lancer Evolution 8/9 2003-2007
Specifications and Features:- Location: Rear- OEM Replacement- 1-Year Warranty Against Manufacturer Defects
Tomei Fuel Pressure Regulator Adapter Part No.5 - Mistubishi Lancer Evo / Evolution X 4B11
$38.00
Compatibility:
Chassis: CZ4A Engine: 4B11
Note: Previous Part#: 185110
TOMEI Adjustable Fuel Pressure Regulator FPR Gauge ONLY - Universal
$48.00
Necessary Itemfor Fuel Pressure Adjustment For proper setting of fuel pressure, important thing is securing fuel's most suitable flow rate and atomization characteristics. The TOMEI Fuel Pressure Gauge is very simple and easy to use,...
-10%
ISR Performance RS3871 Turbo - T2 - .64ar (Similar to GT2871R) - Nissan 240sx SR20DET
-10%
$630.00
$700.00
ISR RS3871 Turbo - T2 - .64ar (Similar to GT2871R) - SR20DET ISR Has just released their newest turbo upgrade option for the SR20DET. This is a great inexpensive upgraded turbo for your SR20DET.Virtually identical...
-15%
GodSpeed Project (GSP) Adjustable Front Lower Control A-Arms Set - Ford Mustang (1994-2004)
-15%
$297.50
$350.00
Godspeed adjustable control arms for foreign and domestic vehicles are engineered for structural and corrosion protection. Made for easy to install with precision tolerances giving you a perfect fit right out of the box. Perfect...
-1%
Roush Active Axleback Exhaust System - Ford Mustang 5.0L GT (2018-2023)
-1%
$2,179.99
$2,199.99
Product highlights for the Roush 2018-2023 Mustang Exhaust for Ford Active System: Give your 2018-2023 5.0L Mustang GT with Ford Active Exhaust an extra boost in performance, an aggressive race-inspired sound and powerful looks with this...
-15%
Mishimoto Plastic Bumper License Plate Relocation Kit - Ford Bronco (2021+)
-15%
$74.95
$88.18
Auto manufacturers have a knack for placing license plates in the most unusual locations, often ruining vehicle aesthetics and, in some instances, impacting vehicle performance. The 2021+ Bronco mounts the front license place in an...
-15%
Mishimoto Modular Bumper License Plate Relocation Kit - Ford Bronco (2021+)
-15%
$74.95
$88.18
Auto manufacturers have a knack for placing license plates in the most unusual locations, often ruining vehicle aesthetics and, in some instances, impacting vehicle performance. The 2021+ Bronco mounts the front license place in an...
-37%
REV9 Bolt on FMIC Aluminum Front Mount Intercooler - Silver - Ford Mustang S550 2.3L Eco Boost (2015-2023)
-37%
$315.00
$500.00
Ford Mustang 2.3L EcoBoost 15-23 Bolt-On Upgrade Intercooler Kit Compatibility: Compatible with Ford Mustang 2.3L EcoBoost 15 16 17 18 19 20 21 22 23 Gain horsepower and instant performance upgrade with Rev9Power's Ford Mustang...
-7%
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ISR Performance Oil Filter Relocation Kit - Nissan 350Z & G35 With ISR LS SWAP KIT
-7%
$260.00
$280.00
ISR Performance - Oil Filter Relocation Kit - 350Z G35 With ISR LS SWAP KIT An essential component for your LS Swapped Z. With The ISR 350Z G35 LS swap kit it is required to...
-24%
Tein H Tech Lowering Springs - Acura TL (2004-2008)
-24%
$200.00
$264.00
High Tech is made from a new material called “Vanadium” which is much lighter then other spring and increases flexibility. Features All spring are designed specifically to fit each car for maximum performance About a...
-24%
Tein H Tech Lowering Springs - Honda Accord V6 (2003-2007)
-24%
$200.00
$264.00
High Tech is made from a new material called “Vanadium” which is much lighter then other spring and increases flexibility. Features All spring are designed specifically to fit each car for maximum performance About a...
-11%
Tomei EXPREME Ti Full Titanium Exhaust System - Nissan R35 GT-R VR38DETT
-11%
$3,400.00
$3,800.00
Tomei's exhaust systems for known for their high performance and super lightweight design exhausts. Unleash the full potential of your R35 with this brand new Tomei FULL TITANIUM EXHAUST SYSTEM. Complete exhaust system including mid sectionCompatible with...
HKS Oil Filter - M20-P1.5 Thread - 68mm x H65 Size & Subaru WRX / STI 02-21
$26.00
Utilizing the filter designed for the original HKS Oil Filter and increasing its surface area by 15%, providing greatly improved particle collection performance. HKS Oil Filter's minimum particle size is 20μ compared with 25μ of...
-15%
Mishimoto Transmission Oil Cooler - Toyota Tacoma (2005-2011)
-15%
$299.95
$352.89
Looking for a way to keep your Tacoma transmission running at its best? Look no further than the Mishimoto 2005-2011 Toyota Tacoma Transmission Cooler. This cutting-edge transmission oil cooler offers a dependable solution to maintain...
-24%
Megan Racing Rear Camber Arms - Spherical Bearings - Acura Integra (90-01) / Honda Civic (1988-2000)
-24%
$150.00
$198.00
Car alignment is absolutely crucial when modifying your car. Alignment can effect every aspect of your driving experience, from straight line stability, under steer, over steer, acceleration, braking and tire wear. Although stock components allow...
-7%
Megan Racing 55mm Rear Sway Bar Stabilizer End Links - Honda Civic (1988-2005) / Acura RSX (2002-2006)
-7%
$70.00
$75.00
It is within this understanding that Megan Racing has unveiled our line of reinforced suspension arms and components that offer the strength and adjustment that any comptition vehicle will ever need. Constructed of high-strength steel...
-10%
Megan Racing Aluminum Performance Radiator - Ford Mustang Manual Transmission (1979-1993)
-10%
$228.00
$252.00
Cooling is absolutely crucial during high performance driving. Maintained high load, high RPM instances dramatically increases heat produced by the engine requiring a lot more from the vehicle's cooling system. Megan Racing Radiators are comprised...
-7%
![Megan Racing "Turn Down" CBS Exhaust Muffler - Toyota Tundra [CREWMAX Cab, 5.7] (2014-2021)](http://www.circuitspecr.com/cdn/shop/files/mr-cbs-ttu14-57_1_500x500.jpg?v=1685514702)
![Megan Racing "Turn Down" CBS Exhaust Muffler - Toyota Tundra [CREWMAX Cab, 5.7] (2014-2021)](http://www.circuitspecr.com/cdn/shop/files/donut_gasket_500x500.jpg?v=1685514702)
Megan Racing "Turn Down" CBS Exhaust Muffler - Toyota Tundra [CREWMAX Cab, 5.7] (2014-2021)
-7%
$460.00
$497.00
Being that an engine is basically a glorified air pump. Engine performance relies on how much air/fuel mixture can enter and how much exhaust can exit the combustion chambers. Though it makes logical sense to...
-31%
Mishimoto Aluminum Slim Fan Shroud Kit - Acura Integra (1994-2001)
-31%
$215.95
$313.06
The Mishimoto Acura Integra aluminum fan shroud kit will considerably improve engine cooling functions and the overall performance of your vehicle. All Mishimoto fan shrouds are significantly lighter than standard fan shrouds. The longevity of...