Boral 11953 S-Type Axle-Back Exhaust System 2. 5 in. Into Muffler Dual 2. 5 in 3 in. Out 4 in. Dual Round Rolled Angle Cut Tip Dual Split Rear Exit w or o Active Exhaust Valve Polished. Authorized Dealer - 100% Satisfaction . Boral. 11953.