The aFe BladeRunner exhaust manifold for the popular 03-07 Dodge Ram Cummins with the L6-5.9L (td) engine sets a new standard in manifold design. In recent testing, this exhaust manifold outflowed the factory exhaust manifold by up to 23%, improving performance and throttle response.
These manifolds are awesome hasn't warped keep cooler egt's and most importantly hasn't cracked over all can't beat it for a basic to mild performance application