DynoMax Ultra Flo Cat-Back Exhaust System - 2-1/2 in Diameter - Dual Rear Exit - 4 in Polished Tips - Mopar Gen III Hemi - Ram Fullsize Truck 2009-14 Transmission Gear Oil Additive 1-5/8" mandrel bent primary tubes

1-5/8" mandrel bent primary tubes and 2-1/2" collectors with merge spears for increased exhaust velocity

they all share one thing in common

5:1 (nominal)

Vehicle Applications: 1970-1972 GMC Jimmy

Plastic nose support is specifically designed to fit the underside curve of the MD3 Evolution style Dirt Late Model nose piece

DynoMax Ultra Flo Cat-Back Exhaust System - 2-1/2 in Diameter - Dual Rear Exit - 4 in Polished Tips - Mopar Gen III Hemi - Ram Fullsize Truck 2009-14 Transmission Gear Oil Additive 1-5/8" mandrel bent primary tubesDynoMax Stainless Steel Cat Back Exhaust System 39480 2. 5 in. Dual System Dual Split Rear Exit Includes Ultra Flo Polished Muffler 4 in. Dual Polished Stainless Steel Tips 50 State Legal Mandrel Bent Stainless Steel Tube Stainless Steel Ultra Flo+ Muffler 90 Day Performance And Sound Guarantee Limited Lifetime Warranty Polished finish for a show quality shine Dyno proven to flow up to 2,000 SCFM and support up to 1,900 horsepower Straight through