W.4 Turbo Upgrade M178 (Weistec) chassis_m275 Audi RS7 C7 Catback with

Audi RS7 C7 Catback with electronic valves in anodized gold finish: $4

Meticulously designed and created in house to the highest precision and quality seen on our other products giving the factory units an all new form factor

9 L V6 hides a truly incredible set of vocals behind the heavy and restrictive factory exhaust equipment

• Fit: E30

W.4 Turbo Upgrade M178 (Weistec) chassis_m275 Audi RS7 C7 Catback withThe Weistec Engineering M177 M178 W. 4 Turbo Upgrade is the key to making the most power with the M177 and M178 engines without compromise in drivability or reliability. The turbo upgrade, as with all W. 4 Upgrades, is a comprehensive turbo upgrade that completely replaces the factory turbocharges. The new turbochargers are ball bearing units with CNC machined billet aluminum compressor wheels rated much higher than the stock units. The Weistec