OBX Performance SS Exhaust Manifold Header 00-05 Lexus IS300 I6 JZ-GE (2nd Gen). 4 O2-Bungs 3/8" Flange Thickness Runner Wall Thickness: 16 Gauge Premium Mirror Polish Finish High Quality 304 Grade Stainless SteelMandrel bend for ultra smooth fast flow Computer Numerical Control (CNC) machined 3/8" flange for precision fitment Dual Tungsten Inert Gas (T.I.G.) welding for stronger hold Increase Better/Smoother Exhaust Flow At Higher RPM To Generate More Power And Maximum Performance Out Of Your Engine. Great Power Package to Unleash Hidden Ponies From Your Motor. Get Up To 35% Better Exhaust Gas Flow. Value Added Direct Bolt On or Weld On Set Up Without Any Modification with accessories included as shown. Dyno Tested and Track Proven to Increase Low End and Top Speed to increase Torque And Horse Power. Backed by OBX Limited Life Time Warranty against Manufacturer Defects Don't settle for the cheaper exhausts on eBay which are known to crack over time due to cheap welding, thin flanges, and very thin wall thickness. Also comes with a limited lifetime warranty from manufacturer defects. Dyno proven to increase horsepower.
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