I have a 2005 dodge with a 4.7. I am wanting to have true duals installed but every exhaust shop in town is telling me it can not be done. I have explaned to them that i have to stock cats with o2s but they keep telling me that it will cause the truck to run like S&%T and it will set off the check engine light. Someone please help.


Also i am thinking of buying a programmer to gain some HP and help with MPG, any suggestions.

Thanks in advance!!

 

depends on your definition of "true" duals is. for true duals you would come off of each manifold, go to an x or h pipe, to two different mufflers then exit how you want. or you could run without the x or h or mufflers for that reason lol. most likely you would have to re-run the entire exhaust system, sounds like they just don't wanna tackle the job.

you could just run a single in dual out muffler with dual exit pipes. would be cheaper and you wouldn't come anywhere close to messing with the cats or O2's.

 

I agree with hoid I'm putting in flowmaster 50 I don't need the burly look n listen sound that bad . I do want to eliminate useless excess resonators/mufflers I also feel I won.t sacrifice engine porformance with just the upgrade I realise I'm decreasing back pressure but not too the degree of loss of performance.