Borla Wailtail Oval 2-1/4in x 5in Side Round Out Boomer Muffler 2017-audi-s7-esi9734555 (W-Series) Replaces constricted factory setup

(W-Series) Replaces constricted factory setup flows up to 66 Percent better than stock

If you want to install this system on a vehicle that came with one tip per muffler you will NEED TO BUY and install a different valance

BBS PFS KIT - Mercedes - Includes 82mm OD - 66

Billet NDLR calipers can be directly mounted over studs

which may not appear on the dash

Borla Wailtail Oval 2-1/4in x 5in Side Round Out Boomer Muffler 2017-audi-s7-esi9734555 (W-Series) Replaces constricted factory setupBORLA(r) Boomers are full blown, high tech, dyno and race proven mufflers for the street or track. These eye popping, fully polished, T 304 stainless steel mufflers feature an integrated polished tip, and utilize BORLA(r)'s patented race winning technology for improved exhaust flow. In addition to adding head turning sound, they also add a modest boost in horsepower. They utilize 100% welded construction for strength. High temperature continuous