GOLF7 GTI 7 7R S3 upgrade MACH5performance deact heatshield downpipe improvement the maximum diameter of the bending area is 89mm,exhaust flow rates and velocity are dramatically increased,dual-heatshield less radiant heat in engine and passenger compartment. decat type attach resonance cancelling techniques. in stock,welcome to contact us. @mach5performance @mach5performanceexhaust #golf #gti #gti7 #gti7r #audi #s3 #heatshield #downpipe #exhuast https://www.instagram.com/p/B_IHxsZBlHp/?igshid=eef12ekf8xwl














