Hehe- that got some attention. As for the difference between the P1 and D1- I *think* the only mechanical difference is the impeller/compressor housing (somebody correct me if I am wrong). The D1 will provide much more air flow for larger displacement engines or high boost levels (over 12-14 psi or so). I was going to go with a D1, but from speaking with Procharger and reading over on corvetteforum and such, I found the P1 is more than capable on a stock motor and I have even heard/read that the P1 will make more hp to the wheels at lower boost levels due to it taking less hp to spin. Of course, once you get to the higher levels, that is negated anyway.
Also- all this "we make more power below the curve" crap you'll hear- yes, they do BUT- I hit 375 ft-lbs at 2300 (where we started the pull) and 400 ft-lbs at 3200 on my 542hp run with a crappy tune- yes, a maggie will hit that sooner, but if you think you can tell the difference between 375 ft-lbs and 400 ft lbs in 1st and 2nd gear, then I have some things here to sell you
. Yes, the torque does come on a bit stronger with a Maggie and a bit later with a Procharger, but you cannot tell in the lower gears and if you floor it at 2000 in the upper gears, then you should learn to downshift. Besides, when you do a run- how often is the car below even 5k? I have driven Maggie cars and am glad I went procharger- the bottom end torque isn't all that much different like others claim- they need to drive a procharger car also for comparison, not just say "look at that curve"- SOTP is very comparible down low with a monster pull up top
. The Procharger keeps making more power, putting you in the seat harder the more it revs. All of my dyno runs, the torque is much more instant than the other guys would say it is and it keep CLIMBING the whole pull.
Don't get me wrong, the Maggie is a very nice setup also and I was going to buy one because I didn't think I'd do much more with my car. Looking back, I'm really glad I didn't since I did not stop at just "bolt it on and go"
As for price, I would just say call around some of the vendors. I paid more through one than I have since heard others sell them for (and it was a favor to me at that price they said
). They will be in the upper 4's, low 5's for the P1 full kit though from what I have seen.