Circuit Werks

700 products ★ 4.4

Since 1999, we've been driving excellence in the Automotive Performance Industry. Backed by decades of experience, we deliver only the highest quality performance parts.

Circuit Werks

All products

Circuit Werks

All products

92-00 Honda Civic 94-01 Acura Integra K20/K24 K Swap EG EK D

05-08 Porsche Cayman & Boxster 987.1 Headers High Flow Catte

Mazda Miata 89-93 1.6 NA B6ZE (RS) MX-5 MX5 S.S. Headers Exh

02-06 Acura RSX Type S / Honda Civic EP3 K20 Tri-Y 4-2-1 K S

92-00 Honda Civic 94-01 Acura Integra K20/K24 K Swap EG EK D

12-16 Porsche Cayman/Boxster 981 Sport Exhaust Header/Manifo

03-07 Nissan 350z Z33 Long Tube Headers Exhaust Manifold VQ3

12-16 Porsche Cayman/Boxster 981 Resonated Sport Exhaust Hea

00-09 Honda S2000 AP1 AP2 CR Dual Catback Exhaust System

00-09 Honda S2000 S2K Header Headers Exhaust Manifold AP2 AP

05-08 Porsche 987 Headers Cayman & Boxster Header 987.1 Exha

S2000 Honda 00-09 AP1 AP2 CR Exhaust Single Muffler Header B

Circuit Werks Short Sleeve T-Shirt

06-09 911 Porsche 997 Turbo S, GT2 Sport Exhaust Header/Mani

Civic Acura Integra Header B-SERIES 2.5 Collector Stainless