A couple questions for the average NA gen 3 build

[That_1_S550]

So, I have a couple questions that I’m sure many folks would have the answers too since there are som wicked smart people on this forum and I am not one of them. First one being, do you need a tune revision after a header install? I would think not but I am just curious. Second what kind of gains are you guy’s seeing from a ported manifold for a gen 3 coyote over the stock one? My guess would be 8-10 WHP but I’d just like to know if it’s worth it. Thirdly, I know meth injection is mainly for boosted cars to pick up power and/or use as a safety net. I doubt that the meth kit would add much to an N/A car but I’ve read higher compression motors see better gains from it so if anyone has a meth injection kit on their N/A build please let me know what kind of gains that you have seen from it! If I can gain power from it that’d be awesome but if not then I’ll just use it as a safety blanket and refit the kit once I get my pro charger on. Thanks guys!

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[bammons88]

I did not need a tune revision. I emailed lund asking if I did. I was told should not be necessary but if anything doesn't go as planned just email them and they can take a look. Its been 3 weeks and car is running strong with no revision needed.

 

[AZ18yote]

Revision to get the most out of your LTH and avoid CEL (unless tricking with defouler or something). Ported mani on 18+ 5-7whp NA, more boosted. If available in your area tune for e85 and your long tubes in the same swoop and you'll have a completely different car on your hands.

 

[Cory S]

No need for any changes on LT’s.

 

[COVID19]

PBD will not do any revisions for lth. Installed mine 3 weeks ago I used o2 extension from Amazon.
No check engine lights so far.

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