Dodge Turbo Back Dual Stack Exhaust System for 4" Grand Rock Stacks. 2003-2004. This system is fabricated with heavy gauge commercial grade aluminized steel. Hardened steel canted and welded “ L” brackets, stainless heavy duty flex pipe and a sturdy clamping system that won't give. Quality designed for lasting performance and ware.

The 4” Y Pipe is designed for smooth. unrestricted, evenly divided flow, through each stack. Lower your EGTs, gain more horsepower in the power band and boost your over all performance potential.