Valvetronic Audi B8, B8.5 S4, S5 3.0, 4.2L Catback T304 SS Anodized Gold 3.5" Tips AUD.B8.S4.VSES.AG.FC air Regardless of what you drive

Regardless of what you drive we have a Halo solution for you

With superior fatigue resistance and precision engineering

This system uses a Pro DRY S progressive mesh three layer synthetic "oil free" filter for maximum airflow and convenience

The Lightning valve includes dual gauge ports and weighs ½ pound less than the old style Nitrous Express chrome plated brass valve

Valvetronic Audi B8, B8.5 S4, S5 3.0, 4.2L Catback T304 SS Anodized Gold 3.5" Tips AUD.B8.S4.VSES.AG.FC air Regardless of what you driveValvetronic Designs Audi B8, B8. 5 S4, S5 3. 0, 4. 2L Catback T304 Stainless Steel Finished in Anodized Gold Forged Carbon 3. 5" Outlet Tips AUD. B8. S4. VSES. AG. FC 2010 2016 T304 stainless steel for long term durability and corrosion resistance finished in Anodized Gold 2. 5" tubing from front to tips. Vacuum Valve Control: Allows on demand sound control from the included key fob remote. 12. 3 lb lighter than the factory exhaust. Paired With