We start with a stock intake manifold, and port-match both the inlet and outlet ports to their respective gaskets. This increases the flow of the port while reducing friction from the stock manifold's rough casting. The result is more horspower and torque through the powerband. Look for 12+hp from this mod on your L67 or L32.
Please allow 10-15 business days for your intakes to ship out once cores and payments have been received.