The Alpha Competition Decat Downpipes for the Audi RS4 B9 and RS5 F5 are manufactured from high-quality T304 stainless steel. These downpipes, with a diameter of 4.5" / 114.3mm > 3" / 76mmThey fit without modifications between the turbos and the front pipes of the 2.9 TFSI engines. They are designed to remove the catalytic converters and provide an aggressive sound.
Properties
- Direct mounting
- 2-piece set
- 100% T304 stainless steel
- 4.5" / 114.3mm > 3" / 76mm tubes
- Optional specific thermal insulation
- Measured gain on stage 1: 34 hp
- Aggressive sound
- Handmade TIG welding
- Mounting kit included
- Lifetime warranty
Technical specifications
- Material: T304 stainless steel
- Diameter: 4.5" / 114.3mm > 3" / 76mm
- Production technique: Hand-held TIG welding
Contents of the set
- Alpha Competition Decat Downpipes
- Mounting kit
Frequently Asked Questions
Is ECU calibration mandatory?
Yes, ECU calibration is mandatory.
Are these downpipes compatible with OPF/GPF-equipped versions?
No, these downpipes are not compatible with OPF/GPF-equipped versions.