what do i need

[mwood1985]

so i want to straight pipe my truck. its an 01 extended cab 4x4 with a 4.0 what do i need to do to do it right what fittings what size pipes ect i know i want to run cherrybombs or flowmaster 40 mufflers i havent narrowed that down. but baiscally i want dual rear exit pipes what do i need

 

[bmxryder]

i think the term straight pipe means that there isnt any muffler like a dragster. i think you can have true straight pipes with a cat though just no muffler. ive heard of straight pipes killing your low end, idk about rangers though.

 

[mwood1985]

well i ment "straight" in the sense of one pipe cat and muffler for each header with exit pipes at the rear of the truck hope that helps clarify and would i need to make an H or X pipe to connect the two pipes?

 

[bmxryder]

oh i see. well idk much about duels but usually any exhaust shop can fit you up with exactly what you want. or just walk in and talk to them and get an estimate and walk out (if ur gonna do it yourself)

 

[mwood1985]

good idea

thats a great idea get them to show me what to do

 

[Wicked_Sludge]

what your talking about is called "true duals", not straight pipe.

true duals on a truck that new is going to be a bit tricky, and expensive...and illegal (meaning most exhaust shops are going to turn you down). if memory serves, you have 4 cat converters from the factory....that combined with a downstream o2 sensor for monitoring cat efficiency will make doing this without tripping a CEL tough.

also, i hope you dont have your hopes up for huge horsepower gains with this setup. it will SOUND better than single or split exhaust...but performance will be nearly identical to stock.

you will need to run an equalizer pipe (aka. an "H" or "X" pipe) in order to get the proper sound and to avoid killing your bottom end torque.

you'll have to have at least one cat converter on each pipe. you may be able to get away with locating the downstream o2 sensor in just one of the pipes...or you may try installing it in the equalizer pipe. im not sure how it will react to either situation.

if your just after the look of dual exhaust, you'd be much better off just replacing your factory muffler with a single in/dual out unit and running the 2 pipes back. im personally not a fan of split exhuast...in my opinion it just adds weight and complexity while still droning the way a single exhaust does.

 

[mwood1985]

help

ok so all this helps im going for a nice deep sound and of course the dual rear exit so it looks like im about to learn how to fab my own stuff to get what i want as always thanks TRS