I'm almost finished up with my engine swap and have a few questions. I got my Nismo headers installed and plan on using the stock b pipes with the resonators on them (2wd '04) No cats at all,and then a little straight pipe with a couple Dynomax chambered mufflers and thats it until I get some dual pipes bent to go to the rear. The mufflers are just something that I have on hand and need to get this truck going because it is my only vehicle, I will more than likely get different mufflers later because I have a feeling I'll have a nasty drone with these. My main question is do I absolutely need to get some kind of a tuner to make it safe to drive? I'm not after performance at this time, I just dont want to run it lean and burn anything up. I'm a 2 stroke guy and get a little paranoid about air/fuel mixture. Seems to me these trucks run a little rich anyway.