im looking to get a true 4inch turbo back exhaust will it hook up to stock headers and down pipes? what is the best and cheapest one to get?

 

diamond eye

 

do i need to get a crossover pipe or anything else to hook up the diamond eye 4 inch turbo back?

 

No but it would be a good add on and flow better

 

Careful... I installed a 4" from the down pipe back... It sounded awesome... Power went up... BUT!! My milage dropped by 3 points. Made a restrictor plate at the tail end,,,,, milage went back up again.... Just my experience........