The Ductile Iron Exhaust Manifold for the 2003 to 2007 Dodge RAM diesel trucks has been released by aFe Power. In recent testing, this exhaust manifold out flowed the factory exhaust manifold by 23 percent, improving performance and throttle response. The thick wall (0.25 inch versus 0.15 inch) flange design increases strength, eliminating warping and cracking prevalent in the factory exhaust manifolds. The matched ports and merged runner design reduces exhaust backpressure, maximizing exhaust flow. Once it’s installed you will feel quicker turbo spool up times, improved throttle response and increased performance according to the manufacturer.
This manifold is constructed of durable cast ductile iron with a reinforcing rib for maximum strength between the wall flanges at the ports. Two Exhaust Gas Temperature (EGT) probe ports are supplied for easy installation of gauges or testing equipment. All necessary hardware is included for a hassle-free installation and the exhaust manifold retails for $414.75. (888-901-7693/www.afepower.com)