Optional Revolution RS Titanium Turndown Tip(s) 105mm Dia. Touge Factory GReddy Universal 2.5" Revolution RS Muffler (140) And Tip GReddy Universal 2.5in 3 Bolt Tip Revolution RS Mufller Speed Science GReddy Titanium Turndown Tip 105mm Dia. L 150mm Revised Revolution RS TI UNIVERSAL ROUND MUFFLER 2.5" 105MM TIP (11002525) GREDDY CATALOG RS TI. 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.