I8ACHEVY

Hello all,
My wife bought a '15 Ecoboost premium the other day. Surprising performance so far. As a V8 traditionalist, I know that you can't get a 4 cylinder to sound remotely close to a V8. Anyone hear of anything that doesn't make the car sound like it belongs amongst the civics of the world?
I was eyeing at removing the resonator, to save weight. Anyone have any feedback of what it sounds like to ditch the resonator but keep the stock mufflers? Any other recommendations?

Thanks,
Aris

jz78817

resonators don't add weight. they're a slightly larger section of pipe, intended to reduce drone at a particular RPM. pointless to get rid of them.

I8ACHEVY

I heard that it's a 23lb part. If you were to ditch that and replace with a y pipe, you would have a net gain.

jz78817

wow, I hadn't seen that "suitcase" before. forget what I said above.

GAZRNR

The magnaflow street cat back system (to me) sounds like the best one out there now for the 4 cyl at this time. The borla system also sounds good but the turbo 4 will never sound like a GT.

rgingo

There hasn't been much info yet about deepening the 2.3 exhaust sound. I've heard that a cat-back or turbo-back will help with the sound, but so would an axle-back or even just the mufflers. (Modding just for sound is not the same as modding for power). Anyone with thoughts on this?

jz78817

the SRT-4 I had came from the factory with no mufflers; the turbo, cat, and resonator were enough to quiet it down but it had quite the "burble" at idle and for a 4-banger, it didn't sound all that bad.

maybe this is one case where a muffler delete could work ok.

bluebeastsrt

Are you kidding me. The SRT4 exhaust put a lot of V8 exhausts to shame!!!

Victorpopoff

I'm also thinking of removing the stock mufflers and replacing with straight pipes. The resonator would remain or replaced with a muffler. I've had a couple of hot rod muffler shops suggest that but I don't know ... I want it louder than stock but not to the point it attracts unwanted attention. Has anyone done this mod?

rgingo

From what I have read on this subject, it seems that the muffler-delete option will make it louder for sure, but you risk making it sound like an old eco-box with a rusted-out muffler. I think the only decent option that does justice for this Mustang is to go for an exhaust mod that takes it down deep in tone, with no raw or raspy notes at any RPM. So far, a catback from Magnaflo, Ford Racing (Borla), MAP etc. would be the best bet. Any opinions on this?