Yikes - you'd be better of unloading the drives NOW, before they grenade, so you can at least get something for them...couple grand at LEAST to put towards the new drives.

Actually the 80 mph group on GPS[/QUOTE]

I am hoping it will run 80.. I am going to lose alittle power with the exhaust.. Gil 4" Some guys recomended that i buy big tube headers.. But big tube headers are 7000.00 a SET!!
So gils it is..

As for the drives that will come next year...

I have the big tube CMI's on mine. Innovation Marine did the entire package. Great sound from the 540's. Innovation had quite a few sets at their shop, they might cut you a deal on some used ones.