A904 Downpipe Specifications:
- Track and Competition Downpipe
- High Flow Cat - Not Legal for Street Use
- 3" Diameter Tubing
- Fits with Thermal Focus ST Catback Exhaust - B904-C904
Thermal R&D began at the downpipe, realizing that many Focus ST owners may one day require the full turbo-back kit for competition use. This downpipe completes the full 3" Turbo-back system, designed to be used with Thermal's Focus ST catback exhaust system (PN: B904-C904).
Thermal R&D Exhaust systems are designed with quality of sound and manufacturing as our number one goal. Built from T304 Stainless Steel, the fit and finish of our products are designed for performance on both the street and the track. Understanding that the exhaust is the starting point for many builds, our high-performance exhaust will allow additional modifications to perform at their peak. We engineer our products with the goal of achieving the best all-around product for a given application.