Description
Engineered as the ultimate downpipe solution for your Audi B9 S4 or S5, every detail is maximized to provide the turbo and engine with a completely unrestricted exhaust flow path for up to 45HP & 41TQ (on hybrid turbo setup). The TIG-welded 304 stainless and investment cast body delivers addictive sound, quality finish, effortless install, reliability, and maximized performance for your turbocharged V6.
Features:
- Required to support hybrid turbo ECU calibrations
- High-flow design to support full-bolt on stage 2 power capabilities
- Removes any downpipe restrictions for full available power
- Increases exhaust sound with improved engine & turbo notes
- Improves turbocharger efficiency & speeds up turbo spool
- Thick-wall casting reduces radiant heat in the engine bay
- 200 CPSI performance high-flow catalytic converter
- 304 investment cast downpipe body
- 304 stainless steel downpipe legs & CAT
- Massive 6" downpipe body to dual 2.5" downpipe legs
- Hand TIG-welded for superior reliability and surface finish
- Direct bolt-in factory replacement
- CNC machined v-band and bolt flanges for leak-free operation
- Installs to the stock exhaust or IE Midpipes upgrade
*Requires Stage 2 or hybrid turbo ECU tuning
Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.