[zzwhm]

It's my 3.2 that got 220.92 at the rear wheels mentioned above. I'm sort of a dyno nut and out of curiosity have tested a few exhaust/muffler variations.

The dyno runs above were when I wanted to compare 1/1/2 SSI to 1 5/8 headers. The catalyst was that I noticed guys running larger diameter headers on their 3.0s and 3.2s seemed to have more torque and could pull me on the straights. I went into this as a firm believer in SSI and wanted some evidence that larger headers would make a difference. I was really surprised when the dyno results showed a substantial gain in torque and ~20 hp difference above 6k where the SSI fell off a cliff.

BTW, for grins I also tested a drilled airbox versus stock. Only 1 hp difference, which is statistically noise, but free.

Bill