4-inch performance exhaust system featuring dual 2.5-inch and 2.25-inch mandrel-bent tubing, designed for 2014–2018 GMC and Chevrolet K1500 pickup trucks with OE-style aluminum or stamped steel upper control arms

Description

Fabtech’s new 4in crossmember systems utilize their proven heavy duty construction and design features found in their 6in systems but with less lift for use with 33in tall tires. These 4in systems feature high arched lower control arm crossmembers constructed of 1/4in thick steel for maximum strength. The Fabtech ductile iron steering knuckles retain the stock track width keeping tires under the fender for a clean appearance. Rear lift is accomplished with a block and u-bolt configuration. The Performance System features Dirt Logic Stainless Steel 2.5 Resi Coilover front shocks and Dirt Logic Stainless Steel 2.25 rear shocks for aggressive offroad capabilities with a smooth highway ride.

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