Pro Series Muffler - 4.00 Center In / 4.00 Center Out - Moderate Sound 1983-chevrolet-k20-esi6015223 With multiple gauges and indicator

With multiple gauges and indicator screens

Differential Carrier - Detroit TrueTrac - 35 Spline - 4

5 in Tall - 7 in Wide - Dual 1/4 in NPT Ports - Aluminum - Natural - Each

3/5 - FIA Approved - Touchscreen Compatible - Elastic Cuff - Black / Gray / Fluorescent Orange - Large - Pair

Timing Chain - Double Roller - Cloyes Timing Chain Sets - GM / Mopar - Each

Pro Series Muffler - 4.00 Center In / 4.00 Center Out - Moderate Sound 1983-chevrolet-k20-esi6015223 With multiple gauges and indicatorThe Pro Series mufflers work on all applications ranging from street trucks, diesel pullers and RV pushers to every class of racing on dirt or asphalt. During development, at the dyno and track, the Pro Series mufflers consistently delivered performance that is equal to or surpasses open pipe systems, while dramatically reducing sound levels across the RPM range.