Does anyone know the correct contact info on this company that makes the turbo for the banshee? The contact info listed in dirt wheels is incorrect or has changed. What is the full name of the company as listed with the phone company? Are they in Michigan, what area code, (248)?

 

Try calling GP Enginerring. They built everything for that Banshee. I'm sure they could answer any questions you have and give you Hiper Tech's number. GP's going to turbo a DS650 before long.

 

I've been having trouble getting a hold of GP Engineering - the line is constantly busy???

 

What time of day are you calling? Call in the morning or evening and the best day would be Monday or Tuesday because they work on their modified midget race cars on all day Thursday and Friday for the races out there Saturday night. What do you need? Just keep trying to call them.