Jamo 4" SS Downpipe-Back Exhaust System for 2008-2010 GM Duramax 6.6L

Jamo 4" SS Downpipe-Back Exhaust System for 2008-2010 GM Duramax 6.6L

Your Price: $369.00
Free Shipping.
Part Number:C003DB

Choose Options

No Muffler
Muffler [+$30.00]
Jamo 4" SS Downpipe-Back Exhaust System for 2008-2010 GM Duramax 6.6L 


  • Made with T-409 Stainless Steel
  • Single side exhaust kit with muffler delete
  • 4 Downpip-Back
  • Free T-304 tip


  • Better fuel mileage
  • Lower exhaust gas temperatures
  • Extended life of the exhaust
  • Increased performance- up to 13HP and 23 ft. lbs. of torque
  • Improved appearance
  • Enhanced sound

JAMO Performance Exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4" 409 stainless steeltubing for maximum flow, increased horsepower, increased torque and lower EGTs. This system is available in 4" turbo-back with a highly polished muffler featuring polished welds to provide a seamless appearance, and a stainless steel tip. JAMO Performance Exhaust systems are the perfect combination of performance, fit and value.


All systems use factory mounting locations providing stability and hassle-free installation. OE style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The Bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time. High quality OE style flange and U-bolt clamps are used for a complete 360 degree sealing surface.


A free-flowing 24" long muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque out of your rig. With a free-flow design, the strategically placed louvers provide sound deadening control for a more pleasant in-cab ride.

Note: This is a "Race Only" product used solely for competition. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use including recreational off-road use could be in violation of local, state and federal laws. This system also requires an aftermarket electronic module to work properly with the vehicle.

Related Items


Browse By Category
Browse By Price
New Releases
Top Sellers