Block Off Plates

Mitsubishi Evo 4-9 4G63 Manifold Block Off Plates by STM The STM 4G63 Manifold/Cylinder Head Block Off Plates are designed to completely seal off your intake or exhaust ports while you have the manifolds off. Whether you're building your motor or swapping out parts,...

2001-2006 Mitsubishi Evo 7/8/9 Carbon Fiber Firewall Block Off Plates by STM The STM Carbon Fiber Firewall Block Off Plates are the perfect addition to your racecar. We believe in form AND function. If you've removed your A/C, even in your street car, the...