Boundary Shims

Looking to upgrade your vehicle with a oil pump from Boundary? We carry a great variety of Boundary Shims and other engine component performance parts for your vehicle.

We have 2 Boundary Shims available with free shipping to the Continental US 48 States.

Fitment Information Unavailable

IN STOCK - LOW BP-SH-K Boundary 89-05 Ford/Mazda BP (All Types) I4 Shim Kit (7/14/21/28/35 PSI) w/Retaining Pin $36.03 Details

IN STOCK VQ-SH-K Boundary Nissan VQ (All Types) VHR Shim Kit (10/20/30 PSI) - 3 Shims $45.38 Details