i've just bought an 850 turbo, looking to put an exhaust on it... i know you dont get a lot of hp out of them but would i put a 2.5 or 3 inch? what muffer should i look at?

also wondering if i can install a boost control on the stock turbo?

cheers

 

1. Do a full tune up considered STAGE ZERO to get your car in tip top shape before you upgrade.

2. I suggest you do a full turboback system...

*Which includes the downpipe and catback system.

-3" mandrel bent downpipe with a free flowing CAT.
-2.5-3" mandrel bent catback system with a free flowing straight through design muffler such as a BORLA or Magnaflow. You want straight through free flowing mufflers nothing with BAFFLES in it. As you want the most free flowing exhaust possible.

*Now if your just going to do the catback system, just go with a 2.5" mandrel bent system with a straight through free flowing muffler such as BORLA or Magnaflow.