This piping kit is 2 pieces to reduce the amount of couplers and piping pieced that could potentially pop off mid race causing a loss and an embarrassing moment. ***Please note: this was constructed around a Full Race top mount turbo manifold, the vehicle did not have traction bars and had a slim push fan*** If you have an aftermarket traction bar modifications will be required If you have a fan shroud you may have to shorten the cold pipe Any other manifolds may require very minor mods (since they sit just about the same area) The Hot side (coming from the turbo) is 2.50" with flare to 3.00" The cold side (from intercooler to throttle body) is 3.00" Specifications: *Made of High quality T- 6061 aluminum piping *2.50" Hot side with flare to 3.00" *3.00" Cold Side *50MM blow off valve Flange *Brand new item Professional installation is highly recommended as no Installation Instructions are Included. Application List; Acura Integra 1994-2001 all models (Requires Modification) Honda Civic 1992-1995 all models Honda Civic 1996-2000 all models Honda Del Sol 1993-1997 all models (Requires Modification)