07-29-2017, 02:31 PM | #1 |
Private First Class
44
Rep 122
Posts |
Need some advice on a catback system
Hi,
Been looking at a AA catback system for my 135i. My question is after the install do I need to get it tuned, or will I get the benefits as soon as I bolt it on. The site says I'll gain 11.5 hp and 11.5 in torque. But they don't mention tuning. My son just did a catback on his Evo X, his car he has to tune because his catback opens up to 3" at the catback. Thanks |
Post Reply |
Bookmarks |
Tags |
catback, exhaust |
Thread Tools | Search this Thread |
|
|