Use this exhaust system when you want to enhance the look and performance of your 1997 - 1999 Jeep Wrangler. It's perfect for Jeep enthusiasts who live in dry areas and want a stylish and high - performing exhaust. The system has 2 1/2in tubing, and most of it is made of heavy - gauge Aluminized Steel. The tailpipe and tip have a high - heat black powder coating for added style.