This turbo requires a full 3” exhaust, why because the compressor is larger than OD of a 2.5” exhaust. This means that the turbo will be damaged if you don't size the exhaust correctly. If you choose to ignore our recommendations or take advise from someone that does not know or manufacture our products than you will be subject to the repair costs associated with this bad decision.

In other words don't do something stupid because your friend that has a turbo on his car, mechanic that installed a turbo once, and /or the salesperson that sold you the turbo said it would be ok. We are telling you that it will not! They also will not be reimbursing you the cost to re-install or refurbish the turbo due to their bad advise. DO NOT UNDER ANY CIRCUMSTANCES INSTALL THIS TURBO ON A CAR WITH A EXHAUST SMALLER AT ANY POINT THAT 3INCHES!!!!!!!!!!! Also Yes this means any and all portion/s of the exhaust you cant have a 2.5” downpipe and 3” exhaust, a 3” downpipe and 2.5” exhaust, or a connection point that goes from 3' to 2.5” and back to 3”, The exhaust needs to be 3” from the turbo to the tip no exceptions!