Ive got a ats3000.GThinking of going with a 4000 or twins with my turbo and a 5000.I love the turbo I have no problems.Besides towing heavy surges up to 70mph.Not sure what would be the better bang for the buck.Put a bigger single or go with twins.Do not want to be any slower.

 

Bigger turbo=more lag which is going to make you slower on the bottom end. Go with the twins if you want more consistent power.

 

I second that. Wish I had a pair cause their the way to go 9 of 10 times.