Armytrix Stainless Steel Valvetronic Cat Back Exhaust System Tips:Gold You can assign incoming channels

You can assign incoming channels to the supplied layouts or create your own from scratch

For 4 cylinder motor please add 4 coil packs to cart

Try our whistling trumpets

They deliver unsurpassed accuracy and NEVER require free-air calibration when used with an AEM air/fuel ratio controller

***Fits C7 Stingray ONLY*** ( Does not Fit C7 ZO6)

Armytrix Stainless Steel Valvetronic Cat Back Exhaust System Tips:Gold You can assign incoming channelsEnhance your Audi A4 by adding the ARMYTRIX Super Sport Stainless Steel Exhaust System. This system will increase power, reduce weight, and improve sound. This precision made performance system delivers more power, especially in the low and mid rev range, the effect on the sound is significant, adding a deep resonant sporty sound, but at the same time neutralizes the annoying frequencies in the most critical rpm range. Complete the look with a set of