Greddy Revolution RS Universal Exhaust Muffler 2.5" Inlet 4" Removable GReddy Universal 2.5" RS Ti Oval Titanium Muffler With V Band GREDDY CATALOG RS TI Universal Revolution RS Muffler(s) with GReddy Tip GREDDY COMFORT SPORTS GTS MUFFLER ZN8 ZD8 (10110737). 1x Revolution RS 51mm or 43mm Dia. Muffler Silencer for GReddy Revolution RS 115mm Tip *(also compatible with most (160mm dia.) GPP RS RACE & GPP RS Ti mufflers) Maintain straight through flow, with more muffler sound suppression. Tip Cup Dia.: 114mm (4. 48")Silencer Pipe Dia.: 51mm (2. 0")Pipe Length: 300mm (11. 8")Material: 304 Stainless steelMounting pattern: Revolution RS Tri mounting *115mm available in Silencer Pipe Diameters 51mm or 43mm *105mm available in Silencer Pipe Diameters 51mm or 38mmFits most GReddy Revolution RS, GPP RS Race & GPP RS Ti 3" 160mm dia mufflers. Call to check compatibility with your application. (949) 588 8300Notes: Requires 3mm Allen Head driver and 8mm wrench socket to install ** Not compatible with Universal Revolution RS with weld on tips.