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PLM Race Header 06-11 Honda Civic Si The PLM 06-11 Honda Civic Si 8th Gen Private Label Manufacturer 4-2-1 Race Header for the 2006-2011 Civic Si K-Series (k20z3) motor. This race header provides serious power, quality, fitment and comes with a great...

Skunk2  Alpha Header 06-11 Civic Si The Skunk2 Alpha Header for the 06-11 Honda Civic Si w/ k20z3 motor w/ free shipping. This highly affordable and powerful header which takes from the design from the race proven megapower header from skunk2...

K-Tuned 06-11 Honda Civic Si Header 409 Steel Series 4-2-1 8th Gen Civic Race Header The K-Tuned 4-2-1 Race Header for the 06-11 Honda Civic Si 8th Gen Civic. This 409 Steel series header provides good power, good pricing and also offers a high-flow...

Invidia Race Header 2006-2011 Honda Civic Si V2.0 The Invidia Race Header 06-11 Honda Civic Si, this header is a very high quality header made by the company Invidia. Invidia produces very high quality products at a very affordable price. This 4-2-1...

PLM 06-11 Honda Civic Si 8th Gen K20 K24 Race Header V2. PLM Private Label Mfg. K-Series 06 - 11 Civic Si K24 K20 header features a true step-up exhaust header design.  This version 2 (V2) is a one-piece design for 100% leak free installation over...

PLM 06-11 Civic Si Race Header w/ High Flow Catalytic Converter 8th Gen Civic The first off the shelf header with a high-flow cat, from none other than plm. One of the most affordable, long standing header manufacturers for the past 15 years on the 8th...

PLM 06-11 Honda Civic Si 8th Gen K20 Race Header with 3inch V-Band PLM Private Label Mfg. K-Series 06-11 Civic Si header is a very unique header, this one features a larger outlet and a direct v-band 3inch collector. Most other systems are 2.5inch and...

HARDmotion 06-11 Honda Civic Si "HyperFlow" Header The 06-11 Honda Civic Si 8th Generation Civic Race Header from HARDmotion, is a satin finished stainless header that has been heat treated and coated in a rust prevention coating to help enhance the...

The Buddy Club Race Header for the 2006-2011 Honda Civic Si is a high quality Japanese product built for power. This header stands out due to its stainless steel polished 4-2-1 and pretty much the only header you can get for k20z3 thats from Japan. These...