Universal RS Ti Oval Titanium Muffler(s) and Tip with V Band Greddy Revolution RS Exhaust 2002 2007 Subaru WRX STI Darkside Motoring RS Ti 105MM DIA TIP L150MM (11002112) GReddy Universal 2.5" Revolution RS Muffler (140) And Tip. Revolution RS Tip: for 2. 5" Revolution (140mm dia.) muffler systems Single wall 304 Stainless steel with etched GReddy Logo Dia.: 105mm (4. 1") Length: 150mm (4. 7"), 150mm (5. 9") Material: 304 Stainless steel Mounting pattern: Revolution RS Tri mounting Replacement (& optional tip lengths) GReddy Revolution RS SUS304 Tip. Exclusively for GReddy Revolution RS exhausts with 2. 5" piping diameter and 140mm overall muffler diameter. Notes: Requires 3mm Allen Head driver and 8mm wrench socket to install Also available in 115mm SUS304 sizes, 115mm and 105mm Titanium Tips** Not compatible with Universal Revolution RS with weld on tips.