Exhaust Manifold Fits Cummins

Are you looking for an exhaust manifold that is fine tuned to improve the performance of your Cummins ISX 14.9L engine? 4 State Trucks is proud to offer this Ceramic Coated Exhaust Manifold by Bully Dog that significantly improves horsepower and fuel economy. It has a high flowing design that provides a quicker turbo spool and a higher power output then the OEM part. Upgrading to this manifold can greatly reduce exhaust gas temperatures 80 to 100 degrees and provide up to a 30 horsepower increase. The manifold is engineered with thick ceramic coated alloy walls with high tolerant press fit connections to prevent leaks, cracks and warping. It is an aftermarket replacement part for OE number 3683789 and is backed by a two year warranty.

* High Quality Ceramic-Coated Exhaust Manifold
* 80 to 100 degree reduced exhaust gas temperatures (EGTs)
* 20-30 HP Increase
* Better Design, Pressure Fitted To Eliminate Leaks
* High Quality Material To Eliminate Cracks
* Ported To Eliminate Any Flow Interference
* Ceramic Coated Cooling EGT By 100 Degrees
* Improves Fuel Mileage
* Replaces OEM # 3683789
* Designed As A Direct Bolt-On OEM Replacement
* Made In The USA
* Sold Individually
* Warranty On Exhaust Manifold Against Defects In Workmanship & Material From Date Of Purchase

***High Quality Aftermarket Replacement Part (Not OEM)***

** This Item Ships Direct From The Manufacturer And Will Arrive In A Separate Package And Possibly A Different Time Than The Balance Of Your Order **