NEUSPEED's all-stainless Catalyst-Back exhaust system rivals the best that any Audi/VW tuner has to offer, our high standards of fit, quality and design. The Golf R Mk8 exhaust uses quality T304 stainless steel tubing for maximum flow, a passive/active resonator in the front pipe and two boxes of Helmholtz drone cancel technology in the rear (no reduced inner cores to restrict throughput), OE style connections. , precision flange, copper gasket and hardware included. No exhaust flaps on our exhaust either, just pure sound ! NOTES Everyday driving is free of cabin-intrusive drone while a rich, aggressive sound is maximized under open throttle/high torque conditions. Consider that this kit doesn't emit a loud, unpleasant exhaust note. Rather, a streetable and mature tone, taming the noise of the passenger compartment. You will experience a more aggressive sound overall. This exhaust does NOT include internal exhaust flaps. As such, the factory loom(s) will want to be folded up and out of the way of dirt debris. No coding is required to eliminate the appearance of a check engine light in the dashboard. FEATURES T304 stainless steel mandrel bent tubing 3" brushed finish tubing, 2.5" "Y" split tubing Polished stainless steel back cans - Drone cancel technology Direct fit to stock downpipe OE style connections Precision flange with copper gasket 4.25 in. polished stainless steel tips Designed and engineered in Camarillo, California Proudly made in the USA Actual part shown in photos