soo i recently sold my 4 wheeler for 1000 and now have some money to spend... im getting obx lt w/ resonators.. i am ordering maggie 94136 hi flow cats with the o2 built in then getting a sct x3... questions. what bolt and what length should i use for the headers? im selling the resonator from the obx and having a true dual system . what size pipe should i run in between the headers and cats? im getting 2.25 inlet outlet cats. and my last question on the sct how much will the custom tunes cost?? btw i have a 97f150 4x4 with the 5.4

 

I'd keep the exhaust 2.5 inch unless you do a lot of towing

who's going to do the tune for you?? most places charge between $65 and $100 per tune unless you find a shop that does lifetim tune adjustments as part of the package

 

idk whos gonna do the tune. places like vmp dont list prices and some people said you gotts get your truck on a dyno before they can write a custom tune.... i do some towing but i have a lift on it now so i probably will use my 89 f150 for the towing now so ill go with 2.5. so i need 2.5 inlet cats also?

 

many people want that stupid piece of paper so they can dry hump it




VMP and fivestartuning come to the top of my list for n/a truck tuning using SCT products

now that I think about it, I think PHP can tune with SCT products as well

 

if they still do them for a 97. the only reason im not getting a edge is because i was gonna have to get the cs or cts because php doesnt tune the evo anymore lol. ill probably go with vmp