T1R - Power Header (4-2-1) - Honda Civic FG2 2006-Up

The stock header is the most restrictive part of the exhaust on the K20A engine. We have been spending years of effort to develop a header with longer 4-2 conjunction to obtimize torque and hp across the power band. Finally we have come up with a 45mm piping size for primaries with 65mm pipe for collector. The 4-2-1 design with the special "Power Neck" is to improve exhaust efficiency other than increasing volume. All exhaust tubings are 1.2mm thick to reduce as much weight as possible while maintaining a strong enough structural design to with hold the heat and stress caused by the engine. The header replaces the stock 4-1 portion and the stock catalytic converter. This header was developed and intended for race and track use only. Dyno tested 15+whp gain.. This header was developed and intended for race use only. T1R O2 Fix (mechanical O2 smulator is equipped with this header). Competable with CSX Type-S 07+, Civic Si 06+ FG2 & FA5

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