Exhaust System Extension KitExhaust Extension Pipe Kit; 4 in. Exhaust;FEATURES:Stainless4 x 20 in. Extension PipeIncl. All HardwareBefore Banks engineers design; build and test power systems; they first examine stock vehicles to see where components choke airflow; create backpressure; raise EGTs; and compromise fuel delivery; Banks then gives back the power; durability and engine efficiency the factory left on the table. The ultimate system for ferocious towing power and durability. Includes lifetime Banks Ram-Air filter and service kit; Techni-Cooler intercooler assembly; OttoMind Diesel Tuner; BigHead wastegate actuator; polished stainless Straight through Monster muffler with exclusive expansion chamber; stainless 4 in. Monster exhaust with constant diameter head pipe assembly; intermediate pipe and tailpipe; 5 in. polished stainless double wall tailpipe tip; and electronic dynafact pyrometer and boost gauge assembly. Lifetime LTD. Warranty.Banks Engineering - First and foremost, Banks is an engineering firm. Established in 1958, Banks has grown to 200 employees on a 12-acre campus. The Mechanical Engineering Department, staffed with world-class automotive people, designs and tests the latest high performance equipment. In the Race Shop, Banks' special project vehicles feature cutting-edge diesel and gasoline development, multiple turbo applications, mind-boggling horsepower and head-turning style. Sophisticated electronic engineering technologies are applied to engine improvement in the rapidly growing Computer Systems Engineering Department. Gale Banks Engineering designs turbocharged engines from the centerline of the crankshaft, out. Banks Prototyping - Gale Banks Engineering is the company others come to for advanced research and development, including "outside the box" projects for both product feasibility and image-generating media attention. Major automakers, including Chevrolet, GMC, Buick, Volvo and Pontiac, have relied on Banks' expertise and capabil
