Hello to all,

I have a 97 f150 5.4 v8. I put in a flowmaster delta force, i believe its the 50 series. I bought the whole system came with pipes exiting on the sides after the rear wheel. I am not really happy with the sound of the exhaust when Im driving around you can barely hear it outside but u hear it inside. I was thinking of usin no muffler maybe using an x- pipe but still using the 2.5 piping that the system came with just excluding the muffler. Any opinions about this please.

 

delta flow 50's would be probably the most quiet mufflers you could get from flowmaster besides the 70's

 

so you would recomend using my x-pipe idea

 

get a 40 series muffler. It will be much louder

 

the louder muffler would be the cheapest solution, but in my experience, ford cats are way quieter than any other cat by us truck mfgrs. lose the cat, and she will be loud. i run a 2.5 " cat back flowmaster setup (2 chamber) on my stang with no cats, and it sounds good. but not too loud

 

HI!... My advice would be to lose the rustmaster and get yourself a MAGNAFLOW S/S set-up. Nicer sound witout any of the FLOWMASTER typical problems...... droning, rusting, cracking, baffles vibrating, terrible customer service.

 

I agree with NEAL. I had a true dual flowmaster 40 setup and it sounded mean as hell and I thought it was performing great too. Until..............i bought a dual in/out magnaflow with built in X pipe and had it installed. My god what a difference in power off the line and MPG too? Night and day difference.