PPE Engineering Lexus LS400 headers - 304 stainless steel (1140005 - SS) PPE_CeramicCoating_2 DN4-XTG4 kit features an Xtreme

DN4-XTG4 kit features an Xtreme pressure plate for the most demanding driver

AI2-XTG4 kit features an Xtreme pressure plate for the most demanding driver

Moderate to heavy pedal effort

ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load

Heavy to very heavy pedal effort

PPE Engineering Lexus LS400 headers - 304 stainless steel (1140005 - SS) PPE_CeramicCoating_2 DN4-XTG4 kit features an XtremeThese headers are a 4 1 design and feature 1 5 8" runners, smooth formed collector with 2. 5" outlet. They are NOT a direct fit to the stock catalytic converters. Power gains are 18 20 whp and 20+ ft*lb. The headers are made of 100% 304 stainless steel. Includes new outlet gaskets. Matching flanges for modifying your exhaust are available at an additional charge. Optional Ceramic coating will reduce engine bay temperatures and keep the headers looking