the addition of a single chamber volumetricaly tuned towards low rev resonance
The largest performance gain comes from replacing the catalysts in the stock headers
Nissan R35 GTR Super Sport Fi Exhaust (Frequency Intelligent Exhaust) high-performance valvetronic exhaust system is direct replacement bolt on system manufactured out of a high-grade T304 stainless steel that offers an exhilarating soundtrack
500 RPM as tested on a 2017 Carrera 4S
Kline Innovation Ferrari GTC4 catalyst Heat Shield Option Audi-S3-8V-2022 the addition of a singleTHE 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,