Artec Dump Pipe SpecificationsManufactured by Artec in Australia this cast stainless steel dump pipe (also known as an outlet pipe or elbow) allows the highest flow of all the products available on the market for Mitsubishi 4G63T engines from Lancer Evolution IV (4) to IX (9).Larger in diameter than the OEM part it is designed to accommodate a 3.5-inch V-band clamp on the outlet side for ease of installation and has a second O2 sensor mount for users who want to use a wide band sensor without having to weld bits on. Access to the lower nut is also easy and there is enough space to use a ratchet spanner.This dump pipe is one of the essential parts for the creation of a full 3.5 inches turbo back exhaust. With the addition of a front pipe and a cat delete it offers superior boost control by having less back pressure on the wastegate exit path.Please note : Dump pipe supplied with V-band flange. V-band clamp to be purchased separately.