Designed to fit the VW Bug this Tri-Mil Dual Quiet-Pak exhaust system with heat risers. Made with 5/16″ thick flanges and uses 1-3/8″ dia. 16 gauge mild steel tubing, mandrel bent, mig welded and test fit to ensure optimum quality and performance. This exhaust is designed to be used with stock and/or aftermarket heater boxes or j-tubes. This exhaust comes with hardware and gaskets to be installed. Remember, if it doesn’t say Tri-Mil, you’re not getting the best!