G&R Diesel T4 S400 up-pipes are fabricated from durable stainless steel to handle the extreme heat and pressure of a high-output 6.0 Powerstroke. Designed and built in-house at their Ohio facility, these replacement up-pipes connect the exhaust manifolds to the turbocharger, improving flow and reliability over stock components.

Weighing only 6 lbs with a compact 10 x 10 x 12 inch footprint, they are a direct-fit upgrade for 2003-2007 Ford 6.0 Powerstroke trucks. The T4 flange accommodates S400-series turbochargers for those seeking serious performance gains.