2007 escalade

[quikchevy]

How can i adjust shift firmness with my trinity? I also get pinging at WOT for a few seconds. I am in ca and can only get 91 octane fuel

Will i see more HP with headers, intake and muffler? I will remove the resonator as well

Any suggestions on i take? I have heard the aFe is one of the best but they have 3 diff options for my truck! Any part#'s would be helpful

Also what brand/part# for ca legal bolt on headers

Thanks

Matt

[06MonteSS]

you can't adjust any transmission settings....

use good 91 octane gas, such as from mobil, exxon, sunoco, amoco, bp, chevron...

yes, long tube headers, cai, exhaust will help with getting more performance...