Quite pricey for just being laid-off($2499). What about the GT45's on ebay. $300 each. With the .96 exh.. I rarely let off the throttle while shifting. Foot to the floor and tapping the clutch.
I am fabbing the headers and tubing so that is not a problem. also have a Greddy intercooler as well.
O, using moderately ported 906's, target comp ratio around 8.5-9 to 1.