Body Length- 20" Overall Length- 26" Porter’s High Flow Muffler has the same sound-deadening feature as our original standard 3” muffler but is less restrictive. Same sound but with more power! This muffler utilizes our aluminized steel 5” diameter body so please make sure you have sufficient under-chassis clearance. Our mufflers are designed to create a slip fit lap joint with your mating exhaust tubing. We suggest welding this joint instead of using band clamps as it will perform better over the length of the muffler and create an air tight seal. Finish/Color Straight Internal Diameter of Inlet Outside Body Diameter Restriction Size/ Internal Diameter of Body Core Part Number Ceramic-Painted Blue ✓ 2.75 5.00 3.00 PM50275 Ceramic-Painted Blue ✓ 3.00 5.00 3.00 PM50300 Ceramic-Painted Blue ✓ 3.50 5.00 3.00 PM50350