Audi A4 B7 3.0 TDI Turbo Downpipe – Stainless Steel (2004–2008)

Unleash hidden power with this high-flow stainless steel downpipe for the 2007 Audi A4 B7 3.0 TDI. Designed to replace the factory restrictive unit, this performance downpipe improves exhaust flow, reduces backpressure, and enhances turbo efficiency—ideal for tuned diesel setups.

Crafted from T304 stainless steel, this downpipe features smooth mandrel bends, TIG-welded joints, and CNC-machined flanges for a perfect OEM-fit. Suitable for stage 1 and stage 2 remaps.

Features:

• Fits Audi A4 B7 3.0 TDI (2004–2008)

• T304 stainless steel construction

• Mandrel-bent for optimal flow

• CNC-machined turbo flange for secure fitment

• Built-in bung for sensor compatibility

• Bolt-on design (may require remap for optimal performance)

Performance Benefits:

• Faster turbo spool

• Lower EGTs

• Gains of 10–25 hp with tune