The folks at COMP Performance Group have been hard at work on a selection of products sure to be an instant grand slam with the LS community, and two particularly interesting items on hand at the ...

One upgrade can get your 6.7 Cummins engine running cleaner and making more power. This must-have Ram upgrade is also on sale right now.

In the continuing saga of the Iron Maiden, we're down to churning out some serious power. With a pair of TFS 225cc cathedral port CNC-ported heads, a slightly more aggressive camshaft, and a FAST LSXr ...

In last month’s issue, we spent some time prepping our ’02 C5 for a FAST 92mm LSX intake-manifold swap. This month, we’ll wrap up the job by decking out our Vette’s LS1 with the new FAST piece. As ...