Audi S4 B5 downpipes are designed to improve exhaust flow and increase horsepower by replacing the restrictive factory pipes with high-performance, 3" to 2.5" catless downpipes. Specifically made for the 2.7L Audi S4/RS4 (B5) and A6/Allroad (C5), these downpipes feature a resonated V-band version II design, offering a significant improvement in exhaust air evacuation. By removing the catalytic converters, these pipes allow for a smoother and more efficient flow of exhaust gases, which helps reduce turbo lag and improve engine response.
Crafted from premium 16-gauge T304 stainless steel, these audi s4 catless downpipes are fully mandrel bent and TIG welded at all joints, making them resistant to cracking and corrosion. The polished finish adds durability and protection, allowing the pipes to perform reliably in various driving conditions.
Product Specifications:
- Fitment: Audi S4/RS4 (B5), A6/Allroad (C5)
- Material: 16-gauge T304 Stainless Steel
- Pipe Size: 3" tapered to 2.5"
- Design: Catless, resonated V-band Version II
- Turbo Compatibility: Stock K03, K04, and RS6 turbos
- Welding: TIG welded for superior durability
- Polished finish for corrosion resistance
