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HA1-HDR4 kit features ACT's most popular Heavy Duty pressure plate
Header systems are designed and intended for off road use
5" mandrel bent 304 stainless steel midpipe
Part Type: Downpipes:0
ACT's 6-pad rigid race discs are made with high quality
PPE Engineering Stainless Steel Headers for Lexus IS/GS/RC RWD (935001-SS) PPE_CeramicCoating_2 HA1-HDR4 kit features ACT's mostThe PPE Headers give max power gains of 16whp as seen on our initial dyno runs. The headers bolt in place of the stock maniflods cats and are compatable with stock or aftermarket midpipes and exhaust. Optional high flow stainless steel cats are an option. They get welded into your stock or aftermarket midpipe and bolt to the headers. These must be welded into the midpipe and do not come on the headers. Optional Ceramic Coatings are available that add