I have a 4.2L V6 cold air being the only aftermarket mod to my engine. I was tossing around the idea of going shorty headers with high flow cat, any input? yay or nay? looking for a few extra horses on an every day driver.

 

nay. sell the truck and get one with a v8. if thats not an option, go with longtubes and high flow cats. thatll give u an extra 20 hp. also, ur gonna need some exhaust. look into a flowmaster 44, they sound good on v6s.

 

it give you more horses lol i also want to get some high flows to but i got a v8, theres one guy up here that knows his stuff on some exhaust im sure he help more than me lol

 

No Long Tubes for the 4.2L

 

ill custom make them for him

 

You can get a set of LTs for a 3.8l stang that will fit, with just a touch of tweaking needed to line it up with the f150 exhaust.