2 1/2 permanent heat shields. Integrated shields are more reliable than fastener type shields. When compared to double wall pipes, integrated shields weigh much less and sound better
Seamless 1-piece heat shields. Broken tab brackets are a thing of the past
Integrated baffles meet the need of todays fuel injected motors. Overcomes objections to straight pipes
Stepped pipe systems go from 1 3/4 to 2 1/4. Steps improve flow of spent exhaust gases