Milltek SSXAU407 Full Quad Tip Valvesonic Exhaust Audi B8.5 S4
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More than 34 years of continuous exhaust development and technical expertise are drawn upon to develop the ultimate Milltek Sport range of performance products. The Milltek SSXAU407 Exhaust is a fully polished T-304 stainless steel, CNC mandrel bent, full system. The Milltek exhaust begins after the factory catalytic converters and continues back to the front center muffler and rear center muffler and finally to the valved rear mufflers and quad polished 100mm round tips. The Milltek exhaust improves power and response and gives a deeper more aggressive sound. The valves in the rear mufflers can be opened or closed with an included switch to change between a street and race sound level.
FITMENT GUIDE: The Milltek SSXAU407 catback exhaust fits the following vehicles:
Milltek Exhaust Manufacturing: Milltek exhausts are fully fabricated in the UK from T-304 stainless steel to prevent corrosion and ensure a long life. CNC mandrel bends are used to maximize flow and performance. TIG welding and CNC'ed hangers ensure a perfect fit. Finally the exhausts are fully polished for show car looks.
Milltek Exhaust Install: Installation of Milltek downpipe-back exhausts typically takes 6-8 hours. Professional installation recommended.