Type 4 Side IN - End OUT
What is a Type 4 Muffler?
Answer: A Type 4 Muffler can be round or oval shaped. The exhaust gas travels IN through the SIDE and OUT through the END. Both exhaust pipes are typically made with ID configurations. Sizes Range from 4" to 5" Pipe Sizes.
Refer to the Chart Below to ensure you are getting the correct muffler for your truck.