While we could've gone with the Trick Flow Track Heat-intake manifold, we opted for the higher RPM R-series after talking with Trick Flow. Part number TFS-51500003 is the silver powdercoated R manifold for the 5.0L Mustang with a 75mm throttle-body opening. You can also get the R manifold with a 90mm opening, in black or natural aluminum finishes. There's no provision for EGR. Topping off the cylinder heads are Trick Flow's silver valve covers (PN TFS 51400801).