This is the optional O.S. Max T-2060 WN Speed Tuned Pipe for the O.S. Max VZ-B V-Spec Engine, OSMG2068 and the .30VG Series. FEATURES: Constructed of polished aluminum Three chamber design IFMAR/EFRA approved Welded Pressure Nipple Single Piece Design INCLUDES: O.S. Max T-2060 Speed Tuned Pipe with welded pressure nipple Three Tuned Pipe Mounting Springs One Silicone Gasket REQUIRES: Header, OSMG2702 SPECS: Length: 6.6" (168mm) Pipe Diameter: 1.4" (36mm) Inner Diameter at Header End: 0.71" (18mm) Inner Diameter of Exhaust Outlet: 0.31" (7.8mm) OS EnginesPart OSM72106130