Mp619
Member
New to the forum, just bought my first suv.. 2013 GMC Yukon SLT with 5.3L. Got the K&N Blackhawk intake as a gift and plan on doing a Magnaflow Catback system in the next few weeks. Will i need a tune? If so could you point in the right direction? I just want it to sound nice, if possible gain some mpg, and still be completely reliable. I've never had a vehicle tuned so im blind when it comes to this. Thanks for the help.