Valve-Back - "Sport-to-Xtreme" Sound Level

Features:

High-Performance "Sport-to-Xtreme" Sound (Most Popular Sound Level)
Distinct Rumble at Idle
17 db Total Volume Change
Progressive Sound Throughout the Gear Range (Aggressive)
No Cruising Drone
Compared to the Stock Exhaust System:

+4 Horsepower Gain
+23.06 Flow Increase
-4 lb. Weight Reduction