Replacing the stock catalysts with 100 cell HJS motorsport catalysts
The catalyst for this car is a 200-cell Sportscar
+ Weighs approximately 28 lbs / 12
providing significant enhancements in handling
Upgrade your driving experience with the best exhaust system for your Audi
Kline Innovation Ferrari GTC4 Lusso center pipes Mercedes-AMG-C63-2019 Replacing the stock catalysts withTHE 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,