Downpipes

Turbo Downpipes for Performance Cars & Trucks

The downpipe is the first section of exhaust after the turbocharger, and it's one of the most restrictive points in a turbocharged vehicle's exhaust system. Upgrading to a larger-diameter, smoother-flowing downpipe reduces backpressure, improves turbo spool, and unlocks significant horsepower and torque gains — especially when paired with a tune.

OneFastShop carries turbo downpipes including high-flow catted downpipes with sport catalytic converters, catless race downpipes, bellmouth and divorced wastegate downpipe designs, stainless steel construction, flex sections for vibration isolation, and direct-fit applications for popular turbocharged platforms.

Every downpipe at OneFastShop ships brand-new with manufacturer warranty coverage. Whether you're installing a high-flow catted downpipe for a street-legal build, going catless for competition, or upgrading the downpipe as part of a full turbo-back exhaust, OneFastShop has the downpipe for your turbo platform. Shop the full downpipes collection today.