Circuit Spec R
-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...
-7%
Skunk2 Racing Pro Series Front Camber Kit - Honda Civic (1996-2000)
-7%
$195.00
$209.99
Skunk2 designed its Pro Series Front Camber Kit for the ’96-’00 Civic with specially engineered A-arms and ball joints that allow for maximum positive camber adjustment in a low-profile design. Enthusiasts who are serious about...
ISR Performance Series II EP Single Rear Section - Nissan S14 240sx (1995-1998)
$275.00
ISR Performance Interchangeable EP Single Rear Section for SERIES II exhaust systems Nissan 240sx 95-98 (S14) ** THIS IS THE REAR AXLE BACK SECTION ONLY, NOT COMPLETE EXHAUST SYSTEM** ** ONLY WORKS WITH SERIES II EXHAUST...
-7%
Skunk2 Racing Mega Power RR Exhaust System - Honda Civic Si Sedan (2007-2011)
-7%
$630.00
$674.09
A properly designed exhaust system is critical to engine performance. Skunk2’s 76mm MegaPower RR Exhaust system for the '07-'11 Civic Si sedan was developed with this in mind and is based off of more than...
-37%
REV9 Bolt on FMIC Aluminum Front Mount Intercooler - 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...
Megan Racing Supremo Exhaust System - BMW X3M/X3M Comp. (F97) 2020+
$997.00
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...
VR Performance Blow Off Valve Adapter - Volkswagen Golf GTi | Jetta | Passat | Beetle Turbo
$59.95
The VR Performance Blow Off Valve Adapter allows your turbocharged Volkswagen the ability to vent unused charge air off to the atmosphere creating a whoosh sound. The black anodized billet aluminum piece easily installs between...
VR Performance Blow Off Valve Adapter - Ford F-150 | Raptor EcoBoost
$70.00
Improve turbo performance on your Ford F-150 or Raptor EcoBoost with the VR Performance Blow Off Valve adapter. This new BOV adapter allows the turbo system to vent 100% out to atmosphere the unused charge...
K-Tuned FUCA Front Camber Control Arms - Acura Integra DA (1990-1993)
$259.99
* Please note our K-Tuned Upper Camber Arms are designed for lowered cars only. DO NOT use them to correct camber angles on race cars that are raised higher than stock.The max drop we have...
-5%
![Megan Racing DS-Type Single Exit Exhaust System - Honda Civic (Exc. Type R) [2022+]](http://www.circuitspecr.com/cdn/shop/products/my_post-1_26_362f02b5-3157-4a90-b136-17cac07cd30f_500x500.jpg?v=1677286024)
![Megan Racing DS-Type Single Exit Exhaust System - Honda Civic (Exc. Type R) [2022+]](http://www.circuitspecr.com/cdn/shop/products/mr-cbs-hc22-ds_2_3b58a372-46a1-4a90-b23e-e37065a8aab4_500x500.jpg?v=1677286034)
Megan Racing DS-Type Single Exit Exhaust System - Honda Civic (Exc. Type R) [2022+]
-5%
$420.00
$442.00
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...
-10%
Eibach PRO-TRUCK Coilover Stage 2 Front Coilovers + Rear Shocks - GMC Canyon 2WD / 4WD (2015-2022)
-10%
$1,163.00
$1,292.23
Description Stage 2 system featuring Pro-Truck-Coilover 2.0's + Rear Sport Shocks Front Adjustable Threaded Spring Perch to Accommodate Increased Loads and Maximum Clearance. ERO Off-Road Race Spring Equipped and Compatible. Anodized 6061-T6 Billet Aluminum Coilover...
-10%
Eibach PRO-TRUCK Coilover Stage 2 Front Coilovers + Rear Shocks - Chevrolet Colorado 2WD & 4WD (2015-2022)
-10%
$1,163.00
$1,292.23
Description Stage 2 system featuring Pro-Truck-Coilover 2.0's + Rear Sport Shocks Front Adjustable Threaded Spring Perch to Accommodate Increased Loads and Maximum Clearance. ERO Off-Road Race Spring Equipped and Compatible. Anodized 6061-T6 Billet Aluminum Coilover...
-10%
Eibach PRO-TRUCK Coilover Stage 2 Front Coilovers + Rear Shocks - GMC Canyon AT4 AWD (2021-2022)
-10%
$1,163.00
$1,292.23
Description Stage 2 system featuring Pro-Truck-Coilover 2.0's + Rear Sport Shocks Front Adjustable Threaded Spring Perch to Accommodate Increased Loads and Maximum Clearance. ERO Off-Road Race Spring Equipped and Compatible. Anodized 6061-T6 Billet Aluminum Coilover...
Phase 2 Motortrend (P2M) Checkered Flag Carpet Trunk Mat - Honda Civic EK3 EK9 EM1(1996-2000)
$45.00
This listing is for a brand new P2M USDM spec trunk mat with race inspired checkered pattern in dark grey coloring. This mat comes with their signature P2M plaque embedded onto the mat. Application: Honda:...
-11%
GSP Godspeed Project Mono RS Coilovers - Audi Allroad Quattro (C5) 1998-05
-11%
$765.00
$860.00
MonoRS Coilover damper kit by Godspeed Project are intermediate suspension upgrade setup for daily and Sunday club racing. Lowering your car with improved springs over factory and paired with Mono-tubo shocks with valving that allows...
-17%
Truhart Adjustable Front Upper Camber Control Arms Set - Tesla Model S (2012+)
-17%
$580.00
$700.00
TruHart adjustable front upper camber arms replace your factory front upper control arms allowing for necessary adjustment after lowering your vehicle. Our camber kits utilize hardened rubber bushings which allow less deflection and provide a...
-10%
GSP Godspeed Project Mono RS Coilovers - Toyota MR-S MR2 Spyder (XW30) 2000-06
-10%
$765.00
$850.00
MonoRS Coilover damper kit by Godspeed Project are intermediate suspension upgrade setup for daily and Sunday club racing. Lowering your car with improved springs over factory and paired with Mono-tubo shocks with valving that allows...
Air Lift Performance 1/4" Stainless Steel Replacement Leader Line - Single
$42.00
This is for a SINGLE Leader Line This listing is for a brand new Air Lift 20997 Replacement Leader Line Hose 1/4" NPT For Front and Rear Kits. Features: Made from quality material for superior durability...
-23%
Air Lift 3P Digital Suspension Air Management Control ONLY w/ 3/8" Air Line
-23%
$1,324.00
$1,718.66
Does NOT come with Tank or Compressor What would the ultimate air suspension be like? How would it combine an easy-to-use, reliable, and feature-rich system with powerful technology and beautiful design? Air Lift Performance 3P...
-29%
Koyo Racing 36mm V Series Performance Aluminum Radiator - Acura NSX MT (1991-2005)
-29%
$435.00
$614.00
Circuit Spec R carries a large selection of Koyo Aluminum Racing Radiators to suit your application for improved cooling performance. These are very durable and are direct replacements for your factory intercooler. Here are the...