Spoon Sports Rigid Collar - Subaru Legacy B4 BM9, BMG, BMM - Rear 53540-SNA-A02 leak-free seal between the RCM

leak-free seal between the RCM dry sump oil pan and the engine block on Subaru EJ engines

These will help prevent heat from conducting into the alloy inlet manifold from the cylinder head

and durability

5 rod and clips to the stainless steel collar

We addressed all these issues – and torture tested them in everything from daily drivers to the most extreme non-intercooled drag race conditions at 420+*F charge air temps and nearly 100psi of intake manifold pressure without an issue - you can be confident that our gaskets are the best on the market in quality and value

Spoon Sports Rigid Collar - Subaru Legacy B4 BM9, BMG, BMM - Rear 53540-SNA-A02 leak-free seal between the RCMDeveloped by Spoon Sports, the Japanese Honda tuning specialists, Rigid Collars are precision machined aluminium rings that lock your subframe to the chassis. Factories drill the subframe bolt holes oversized so components drop in fast on the production line, and that clearance stays for the life of the car. It leaves the subframe sitting a fraction off centre, dulling steering response and letting vibration through the floor. Fit a set and the bolts