Circuit Spec R

Showing 1 to 21 of 45 items
New
-11%
GSP Godspeed Project Mono RS Coilovers - Audi Allroad Quattro (C5) 1998-05 GSP Godspeed Project Mono RS Coilovers - Audi Allroad Quattro (C5) 1998-05

Circuit Spec R

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+) Truhart Adjustable Front Upper Camber Control Arms Set - Tesla Model S (2012+)

Circuit Spec R

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 GSP Godspeed Project Mono RS Coilovers - Toyota MR-S MR2 Spyder (XW30) 2000-06

Circuit Spec R

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 Air Lift Performance 1/4" Stainless Steel Replacement Leader Line - Single

Circuit Spec R

Air Lift Performance 1/4" Stainless Steel Replacement Leader Line - Single

$0.00

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...
-19%
Air Lift 3P Digital Suspension Air Management Control ONLY w/ 3/8" Air Line Air Lift 3P Digital Suspension Air Management Control ONLY w/ 3/8" Air Line

Circuit Spec R

Air Lift 3P Digital Suspension Air Management Control ONLY w/ 3/8" Air Line

-19%

$1,395.00

$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) Koyo Racing 36mm V Series Performance Aluminum Radiator - Acura NSX MT (1991-2005)

Circuit Spec R

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...
-14%
Truhart Lower Compliance Rubber Bushings Set - Honda Civic (92-95) & Acura Integra (94-01) Truhart Lower Compliance Rubber Bushings Set - Honda Civic (92-95) & Acura Integra (94-01)

Circuit Spec R

Truhart Lower Compliance Rubber Bushings Set - Honda Civic (92-95) & Acura Integra (94-01)

-14%

$95.00

$109.99

Upgrade your front compliance bushings with these hardened K-Tuned bushings. Old worn and tired bushings will drastically reduce the feel and handling of your car. Replacing worn bushings and suspension components can really make an older...
-16%
Megan Racing Front Upper Camber / Caster Control Arms - Tesla Model Y (2020+) Megan Racing Front Upper Camber / Caster Control Arms - Tesla Model Y (2020+)

Circuit Spec R

Megan Racing Front Upper Camber / Caster Control Arms - Tesla Model Y (2020+)

-16%

$310.00

$369.00

Our front upper control arms for the Tesla Model Y will allow users to fine tune their front alignment angles in order to get the best performance out of their tires or as a final...
PRL Motorsports High Flow Drop In Oiled Panel Air Filter - Honda Civic & Si 1.5T (2022+) PRL Motorsports High Flow Drop In Oiled Panel Air Filter - Honda Civic & Si 1.5T (2022+)

Circuit Spec R

PRL Motorsports High Flow Drop In Oiled Panel Air Filter - Honda Civic & Si 1.5T (2022+)

$52.95

Decades of experience as enthusiasts and manufactures have been put together to create record-setting intake systems for track and street use. Our air filters are designed to last a lifetime with proper cleaning/maintaining (with biodegradable...
PRL Motorsports High Flow Drop In Oiled Panel Air Filter - Acura Integra 1.5T (2023+) PRL Motorsports High Flow Drop In Oiled Panel Air Filter - Acura Integra 1.5T (2023+)

Circuit Spec R

PRL Motorsports High Flow Drop In Oiled Panel Air Filter - Acura Integra 1.5T (2023+)

$52.95

Decades of experience as enthusiasts and manufactures have been put together to create record-setting intake systems for track and street use. Our air filters are designed to last a lifetime with proper cleaning/maintaining (with biodegradable...
-10%
CSF Aluminum Racing Radiator (Manual Transmission) - BMW 335i  (2007-2011) CSF Aluminum Racing Radiator (Manual Transmission) - BMW 335i  (2007-2011)

Circuit Spec R

CSF Aluminum Racing Radiator (Manual Transmission) - BMW 335i (2007-2011)

-10%

$449.00

$499.00

CSF manufactures the most advanced and efficient radiator cores in the industry by using innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation. These techniques allow CSF to stay...
-10%
CSF Aluminum Racing Radiator (Manual Transmission) - BMW 135i (2008-2011) / 1 Series M CSF Aluminum Racing Radiator (Manual Transmission) - BMW 135i (2008-2011) / 1 Series M

Circuit Spec R

CSF Aluminum Racing Radiator (Manual Transmission) - BMW 135i (2008-2011) / 1 Series M

-10%

$449.00

$499.00

CSF manufactures the most advanced and efficient radiator cores in the industry by using innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation. These techniques allow CSF to stay...
-10%
CSF Aluminum Racing Radiator (Auto Transmission) - BMW 335i  (2007-2011) CSF Aluminum Racing Radiator (Auto Transmission) - BMW 335i  (2007-2011)

Circuit Spec R

CSF Aluminum Racing Radiator (Auto Transmission) - BMW 335i (2007-2011)

-10%

$529.00

$589.00

CSF manufactures the most advanced and efficient radiator cores in the industry by using innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation. These techniques allow CSF to stay...
-10%
CSF Aluminum Racing Radiator (Auto Transmission) - BMW 135i (2008-2011) / 1 Series M CSF Aluminum Racing Radiator (Auto Transmission) - BMW 135i (2008-2011) / 1 Series M

Circuit Spec R

CSF Aluminum Racing Radiator (Auto Transmission) - BMW 135i (2008-2011) / 1 Series M

-10%

$529.00

$589.00

CSF manufactures the most advanced and efficient radiator cores in the industry by using innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation. These techniques allow CSF to stay...
Phase 2 Motortrend (P2M) V2 Steering Wheel Quick Release Hub Kit Universal Fitment - Gunmetal Paddle Black Base Phase 2 Motortrend (P2M) V2 Steering Wheel Quick Release Hub Kit Universal Fitment - Gunmetal Paddle Black Base

Circuit Spec R

Phase 2 Motortrend (P2M) V2 Steering Wheel Quick Release Hub Kit Universal Fitment - Gunmetal Paddle Black Base

$100.00

P2M Gen 2 steering wheel quick release kit is made from CNC billet aluminum which allows quick steering wheel disconnect to make make extra room space to enter and exit the vehicle. The wing tab...
Phase 2 Motortrend (P2M) V2 Steering Wheel Quick Release Hub Kit Universal Fitment - Blue Paddle Silver Base Phase 2 Motortrend (P2M) V2 Steering Wheel Quick Release Hub Kit Universal Fitment - Blue Paddle Silver Base

Circuit Spec R

Phase 2 Motortrend (P2M) V2 Steering Wheel Quick Release Hub Kit Universal Fitment - Blue Paddle Silver Base

$100.00

P2M Gen 2 steering wheel quick release kit is made from CNC billet aluminum which allows quick steering wheel disconnect to make make extra room space to enter and exit the vehicle. The wing tab...
Phase 2 Motortrend (P2M) V2 Steering Wheel Quick Release Hub Kit Universal Fitment - Red Paddle Silver Base Phase 2 Motortrend (P2M) V2 Steering Wheel Quick Release Hub Kit Universal Fitment - Red Paddle Silver Base

Circuit Spec R

Phase 2 Motortrend (P2M) V2 Steering Wheel Quick Release Hub Kit Universal Fitment - Red Paddle Silver Base

$100.00

P2M Gen 2 steering wheel quick release kit is made from CNC billet aluminum which allows quick steering wheel disconnect to make make extra room space to enter and exit the vehicle. The wing tab...
Phase 2 Motortrend (P2M) V1 Steering Wheel Quick Release Hub Kit Universal Fitment - Red Ring Silver Base Phase 2 Motortrend (P2M) V1 Steering Wheel Quick Release Hub Kit Universal Fitment - Red Ring Silver Base

Circuit Spec R

Phase 2 Motortrend (P2M) V1 Steering Wheel Quick Release Hub Kit Universal Fitment - Red Ring Silver Base

$80.00

P2M V1 quick release steering kit is made from CNC billet aluminum which allows quick steering wheel disconnect to make extra room space to enter and exit the vehicle. The one way ball bearing locking...
Phase 2 Motortrend (P2M) V1 Steering Wheel Quick Release Hub Kit Universal Fitment - Carbon Ring Silver Base Phase 2 Motortrend (P2M) V1 Steering Wheel Quick Release Hub Kit Universal Fitment - Carbon Ring Silver Base

Circuit Spec R

Phase 2 Motortrend (P2M) V1 Steering Wheel Quick Release Hub Kit Universal Fitment - Carbon Ring Silver Base

$95.00

P2M V1 quick release steering kit is made from CNC billet aluminum which allows quick steering wheel disconnect to make extra room space to enter and exit the vehicle. The one way ball bearing locking...
Phase 2 Motortrend (P2M) V1 Steering Wheel Quick Release Hub Kit Universal Fitment - Carbon Ring Black Base Phase 2 Motortrend (P2M) V1 Steering Wheel Quick Release Hub Kit Universal Fitment - Carbon Ring Black Base

Circuit Spec R

Phase 2 Motortrend (P2M) V1 Steering Wheel Quick Release Hub Kit Universal Fitment - Carbon Ring Black Base

$95.00

P2M V1 quick release steering kit is made from CNC billet aluminum which allows quick steering wheel disconnect to make extra room space to enter and exit the vehicle. The one way ball bearing locking...
Phase 2 Motortrend (P2M) V1 Steering Wheel Quick Release Hub Kit Universal Fitment - Blue Ring Silver Base Phase 2 Motortrend (P2M) V1 Steering Wheel Quick Release Hub Kit Universal Fitment - Blue Ring Silver Base

Circuit Spec R

Phase 2 Motortrend (P2M) V1 Steering Wheel Quick Release Hub Kit Universal Fitment - Blue Ring Silver Base

$80.00

P2M V1 quick release steering kit is made from CNC billet aluminum which allows quick steering wheel disconnect to make extra room space to enter and exit the vehicle. The one way ball bearing locking...