Maximizer Performance Shorty Exhaust Manifold Header 04-06 Chevy Colorado 2.8L 4Cyl 2WD 4WD Models Stainless Steel Sand Blast Polish Finish Included are new end collectors for ease of installation onto your current exhaust system. New upper header gaskets and lower collector bolts are also included.Brand New In The Box. Primary Tube OD: 1.65" Collector OD: 2.60" Collector Outlet ID: 2.35" 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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