Audi B9 S4 High Flow Downpipe + Prototype Exhaust
Quick audio clip of the ECS Audi B9 S4/S5 Cast Stainless Steel High Flow Catted Downpipe on the ECS project B9 S4 paired with the ECS Prototype Exhaust. The car is in Dynamic mode for the entire clip.
Where I buy car parts from:
Affiliate Links
ECS Tuning → https://bit.ly/ECSTuningParts
Turner Motorsport → https://bit.ly/TurnerBMWparts
Filmed on an iPhone