Huron Speed Truck T4 Downpipe for 4" exit, BW or 1.25 Housings

Huron Speed larger Downpipe for 4"exit turbos with the Truck T4 kit  -Currently build per order, please contact for lead time. -Tubing after the 4" exit is 3.5"   -This downpipe is an optional downpipe to replace the 3" downpipe in our Truck T4 kit. -Downpipe still recirculates the wastegates -Designed to bolt to T4 S400 turbos and the VSR 7875 1.25 housing turbo with 4" exits -Designed on a 2009-13 truck, with that in mind you may need to tweak for fitment through the frame on a 99-08 truck as the larger tube takes up nearly all of the space and the frames are slightly different.