The valves are actuated by the cars OEM vacuum system
Not compatible with S model tips
065″ thick T304L stainless piping allows for maximum sound
*This product cannot fit on E-Hybrid models
Made specifically for the MERCEDES AMG GTS
Kline Innovation Ferrari GTC4 Lusso X pipe BMW-X3M-2023 The valves are actuated byTHE 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,