A 2.5" up pipe is what was called upon to feed the hungy turbo lots of exhaust and a 3" down pipe is on duty to evacuate this exhuast in an efficient manner. We chose a Synapse 40mm wastegate (with atmospheric dump or routed back into the downpipe) to regulate boost pressure.The intercooler a massive bar and plate unit. For the G35 we used twin bar and plate cores,All of the intercooler piping is made of mandrel bent 6061 aluminum. A Synapse Synchronic blow-off valve was picked to releive the boost pressure between shifts. The SFR single turbo system uses the stock headers but we also offer some of our equal length, Burns collector headers for those that want to upgrade the stock exhaust manifolds.The Speed Force Racing single turbo system for the G35/350Z includes the following parts: T-67 turbo, 3-an oil feed and 3/4" ID oil return line and fittings, 304SS up-pipe and down pipe, Synapse 40mm wastegate, bar and plate intercooler, aluminum intake and intercooler piping, silicone hoses, stainless steel hose clamps, Synapse blow-off valve, K&N airfilter and all hardware and instructions needed for a professional install.The complete system also comes with a pre-tuned Split Second EMS, 550cc injectors and Walboro 255 lph fuel pump. Please be advised these parts are sold as off road use only! Check with your local and state authorities regarding installation on your pollution controlled vehicle!