GReddy Universal Revolution RS Muffler and Tip sets create options for custom (single or dual muffler) applications as well as for vehicles not covered by the current line-up. Our signature high-quality, straight-through, universal racing sport mufflers offer exceptional flow with a clean, aggressive exhaust note. The compact 304 stainless-steel mufflers feature our improved internal construction with long lasting, high temperature-resistant sound suppression materials. For something special, revolutionize your car with a custom GReddy exhaust! 2.5 inch Dia. Universal Muffler and Tip set *(non-removable tip)Muffler Type: 140mm Round Revolution RSType: Straight-through - Inlet OD : 63.5mm (2.5 inch)Dia.: 140mm (5.5 inch)Length: 300mm (11.8 inch)Tip Type: Single-wall Stainless-steel with GReddy Logo - Dia.: 102mm (4.0 inch)Length: 120mm (4.7 inch)Piping Extension: L38mm (1.5 inch)- 2.5 inch piping at the back of the muffler - Notes: requires welding (and cutting) for mounting and attaching piping - Material: 304 Stainless-steel