Thread: GXP Exhaust. Ordering parts but have questions

Originally Posted by 91parkave

If youre not going to do any tuning youreself, then dont bother with a wideband. wideband is for accuartley monitoring air/fuel/ratio. Also i wouldnt bother with the overkill tune as will support in the u.s is very sporatic and in general unreliable. if i were you id get a dyno tune locally, especially since youre in cali. here is the link to the wideband btw AEM Performance Electronics - All Software & Firmware Downloads

Well for 1 I'm not in California I'm in north Carolina and 2 the ecm isn't tunable in my car if have to get a ecm/tcm from junk yard and three the only dyno within a 2 hour drive charges way to sang much compare to others. They charge 150 just to weld mufflers and tips on. That's if u supply the new mufflers and tips and already have the old cut out. Plus from what I've read overkill does great ls4 tunes and I'm not planning heavy mods anytime soon. And I haven't had a hard time getting into touch. He replays with two days of when I send an email and that includes weekends. But thanks for answering the wideband question. I didn't know what their use was for

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