Advanced Clutch Sport/Perf Street Rigid Kit (HC5-SPSD) PPE_CeramicCoating_4 Both headers feature: -16 gauge

Both headers feature: -16 gauge 304 stainless steel -Equal length runners -Parallel Merge Collector -3/8" head flange -TIG welded construction -Standard porting at flanges -When used with our high-flow cat or testpipe

HC5-XTR4 kit features an Xtreme pressure plate for the most demanding driver

The PPE Headers give max power gains of 16whp as seen on our initial dyno runs

AI3-SPSD kit features a Sport pressure plate for a nice upgrade

Advanced Clutch Sport/Perf Street Rigid Kit (HC5-SPSD) PPE_CeramicCoating_4 Both headers feature: -16 gaugeHC5 SPSD kit features a Sport pressure plate for a nice upgrade. ACT Sport pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four stage, heat treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT Performance street rigid hub discs feature premium organic materials with high copper