The Active Autowerke Supra MKV Signature down pipe utilizes 4.5” diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. It then tapers down to 3.5" where we've incorporated a stainless flex joint and then down to 80mm to meet the OEM exhaust system. We never drop the diameter to smaller than the stock diameter of 80mm.
The DS-1 is a precision-engineered hi-flow race catted 5” mandrel-bent stainless steel downpipe for GR SUPRA 2020+. It is 3D computer designed to minimize bends and maximize flow while maintaining factory-like fitment.