OBX High performance racing headers are made out of pure SUS-304 stainless steel. Dyno tested at low end and top speed to increase horsepower. Precision mandrel-bend to enhance exhaust gas flow. These one piece type headers are easy to install. Value-added bolt-on headers for any racing sport performance enthusiast. 16 Gauge Runner Wall, 0.4" flange, 1 3/4" primaries pipes, 2.0" ID Collector 2002-2006 Acura RSX Base Non Type-S 2003-2005 Honda Civic Si Mandrel bend for ultra smooth fast flow Computer Numerical Control (CNC) machined 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 Unleashed Hidden Ponies From Your Motor. Get Up To 35% Better Exhaust Gas Flow By Replacing The Restrictive And Inefficient Factory Cast Log Manifolds With These Precision Built High Flow Headers. Direct Bolt On Set Up Without Any Modification Precision CNC Machined 3/8 inch Thick Flange Dyno Tested and Track Proven to Increase Low End High End Torque And Horse Power Backed by OBX Limited Life Time Warranty against Manufacturer Defects Don't settle for the cheaper headers on eBay which are known to crack over time due to cheap welding, thin flanges, and very thin wall thickness. Also comes with a lifetime warranty from manufacturer defects. Dyno proven to increase horsepower.
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