The HSP VGT Downpipes are constructed from 3" 304 Stainless Steel and are built to last. Each downpipe is built in quality fixtures to ensure proper fitment. Our design allows extra clearance for aftermarket up-pipes without crushing or compromising the flow of your exhaust system. Our downpipes are built to withstand harsh environments including road salt, mud, sand, and any other off-road terrain you will be encountering. Don't be let down by the substandard, knock-off downpipes in today's market. Invest in the high quality and standards of HSP Diesel. This is designed to replace the restrictive factory V-Banded downpipe. This will not fit to the 15.5 3 bolt flange downpipes.