Still no proof given on H.P. gains from this vedor but, has anyone here ran this spacer and are there any power gains? Its hard to believe that a narrow spacer like this would make any difference.
Well after some search I see there is at least one other vendor who makes this and I found one site that shows Dyno results----it was showing a 5hp gain. But mostly a few others say there is no hp gain but more torque in low to mid range.
Modular racing offers 1 gasket but wouldnt you need 2 unless you get lucky with the original gasket staying intact ?