Hi,am making a few sets only copies of dumps currently on my 1j cressi so will be designed to fit with engine in.The cressi they are on makes 302 rwhp at 14psi on a budget set up[225 rwkw].Delivery late Feb.If interested do not post here.email me at peterwj@tpg.com.au price 390 to join in single 3",less if you want to run a twin system [no join] 100 deposit,bal and post COD by aust post. Please email,do not post questions here as I will not respond to them. These pipes are needed to make good power from stock turbos and will help them last longer due to less back pressure and associated heat. Cheers.Pete.