The APR Race Midpipes with Catalysts are both 2.5" and are designed as a simple plug and play upgrade. APR uses T304 stainless steel piping that's brushed, mandrel bent, and TIG welded to the included catalyst and CNC machined ultra-flat OEM-style 3-bolt-flanges. The system includes new gaskets, bolts and copper plated nuts.
The system includes two proprietary GESI high-flow catalyst, which are ideal for forced induction applications. They feature a fully captured substrate brick, which is furnace brazed to the outer mantle and physically captured by the diffuser cones. This helps to prevent rattling, rotation and damage to the substrate, especially on higher horsepower applications.
The APR Race Midpipes with Catalysts are compatible with the factory DP and their Race DP. Race Midpipes (catted or non-catted) are required for Stage 2 along with their Race DP.
Features:
- Dual 2.5" Pipes
- GESI high-flow high-strength catalysts
- T304 Stainless Steel
- Argon back-purged TIG welding
- Direct replacement to the factory part
- Works with APR and OEM DP
- Replacement hardware / gaskets included
Fitment/Applications:
- 2016-2022 Audi 8S TTRS
- 2015-2020 Audi 8V RS3
Installation Instructions:
Emissions:
This part is legal for sale or use on Racing Use Only Vehicles
The following vehicles are considered Racing Use Only Vehicles:
Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.
WARNING: It is against the law to install this part on an Emissions Controlled Vehicle