Kline Innovation Ferrari GTC4 cat pipe set Heat Shield Option Audi-S4-3-0T-2021 Catback Exhaust:Mid Pipe + Valvetronic

Catback Exhaust:Mid Pipe + Valvetronic Muffler(EV Valve) (For Quad Tips Sport Exhaust Only) (AM-V8V-CBOE)Downpipes (Optional):1

and engine tone while minimizing drone with high flow race resonators

providing an exhilarating exhaust note and improved power

which underlines the characteristics of the Porsche 997 GT3 / RS

centre and rear

Kline Innovation Ferrari GTC4 cat pipe set Heat Shield Option Audi-S4-3-0T-2021 Catback Exhaust:Mid Pipe + ValvetronicTHE SOUND Our main criteria for the Gtc4, to produce a super light, Inconel 625, valvetronic, full exhaust system, that would be subtle and pleasant at cruising speeds, but to open up the sound to full scream on full throttle and valve open. Replacing the stock catalyst for high flow 200cpsi HJS sports catalysts, we were able to open the sound significantly. Replacing the stock H pipe for our perfect geometry, laminar flow X Pipe, enriches the tone,