Maximizer High Performance Full Length Catted Exhaust Manifold Header 01-04 Chevy Corvette V8 LS1 5.7L C5 Models Only Stainless Steel Sand Blast Polish Finish Brand New In The Box. . New header gaskets and bolts are also included for installation. Primary Tube : 1.75" OD Piping : 2.5" OD Flange Thickness : 3/8" Runner Wall Thickness : 16 Gauge (1.5mm) This Header 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. Dyno tested and proven at top and low end. 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 Dyno Tested and Proven to Increase Torque And Horse Power Great Throttle Response With Great Sound High Heat Resistant Graphite Gaskets Included Dual TIG Weld, High Quality SUS-T304 Stainless Steel For Best Durability Backed by Maximizer Limited Lifetime Warranty against Manufacturer's DefectsMaximizer Genuine Products and Design in U.S.A.
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