Narkos Performance Downpipe for Audi S4 / S5 B9

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Transform the performance and sound of your Audi S4 or S5 B9 with the Narkos Performance Downpipe. Built from premium SS304 stainless steel and TIG-welded for strength, this downpi pe is designed for precision fitment and durability under high-performance conditions. By removing factory restrictions, this upgrade reduces exhaust backpressure, lowers exhaust gas temperatures, and allows for faster turbo spool. Pair it with Stage 2 tuning for substantial power gains and a much sharper throttle response. Expect a deep, aggressive exhaust tone with enhanced performance to match. Ideal for enthusiasts who demand the best from their Audi. ✔ SS304 stainless steel construction✔ TIG-welded for maximum durability✔ Faster spool and throttle response✔ Compatible with Stage 2 tuning✔ Sportier, more aggressive exhaust note Show more