Alpha competition

Audi RS4 B9 / RS5 Alpha Competition Decat Downpipes w/Shield

Ref: AC-B9RS-DPHS
$799.99

Specific References

UPC
2
Lifetime Warranty
Motorsport Grade Quality

Engineered for performace

These stainless steel Alpha Competition downpipes, in 4.5" / 114.3mm to 3" / 76mm diameter, fit without modification between the turbos and the front pipes of the 2.9 TFSI engines fitted to the Audi RS4 B9 / RS5 F5, removing the catalysts.

Manufactured from high quality T304 stainless steel with handmade TIG welds, these downpipes bring an average gain of 34hp on a stage 1 engine and a particularly aggressive sound. They feature a high-flow design and specific thermal insulation that reduces heat radiation by up to 50%.

  1. DIRECT MOUNTING Fits without modification between the turbos and front pipes.
  2. 100% T304 STAINLESS STEEL Built for durability and long-term reliability.
  3. 4.5" / 114.3MM TO 3" / 76MM PIPES High-flow design for improved exhaust flow.
  4. SPECIFIC THERMAL INSULATION Reduces heat radiation by up to 50%.
  5. MEASURED GAIN ON STAGE 1: 34HP Real performance gain verified on stage 1 engines.
  6. AGGRESSIVE SOUND A more aggressive exhaust note.
  7. HANDMADE TIG WELDS Precision welding for a high-quality finish.
  8. ASSEMBLY KIT INCLUDED Everything needed for installation is included.
  9. LIFETIME WARRANTY Backed by a non-transferable lifetime warranty.

Specifications

  • Reference AC-B9RS-DPHS
  • Material T304 STAINLESS STEEL
  • Diameter 4.5" / 114.3MM TO 3" / 76MM
  • Warranty LIFETIME
  • Power Gain 34HP (STAGE 1)
  • Heat Insulation REDUCES RADIATION UP TO 50%

Vehicle Compatibility

  • Audi RS4 2.9 TFSI - 450
  • Audi RS5 2.9TFSI - 450

Performance Benefits

  • Increase Power
  • Reduce Temperatures
  • Improve Sound

Installation

Difficulty Difficulty image Moderate
Time - 1h

Downloads

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