The RPM Air-Gap Dual-Quad #7528 intake manifold is designed for the Chrysler 5.7L Gen III HEMI, this manifold is perfect for those looking to swap this modern powerplant into their classic Chrysler or street rod. Our RPM Air-Gap Dual-Quad manifold added over 30 ft-lbs. of torque when tested on the Chrysler crate engine P4510594. The dual-quads make great power while providing a nostalgic look. Requires an MSD Performance 6-Hemi Controller #6013 for ignition timing control.