Now catless, hate the exhaust note.

[Chris_Red_V8]

On my new motor I've been pleased with everything but the sound.
its raspy. Way raspy, so much so I just hate how the sound "trumpets".

The setup is
Magnaflow Competition Catback
Boss302 midpipe (had to cork the sidepipes though)
Jegs cat deletes
factory manifolds
11.5:1 boss302 style motor.

Recommendations on how to get back to a nice sound?

-install cats
-change to GT500 mufflers or other
-add some other muffler in center

What else can I try, or does anyone have examples of a catless coyote that sounds good?

I'll get some video today of my setup today. I really do miss how it used to sound with cats and the sidepipes open.

 

[SILV03MustangGT]

Go to hi flow cats. I have long tubes with cats and I don't think I would like the way it would sound without them.

 

[acrbill]

I think the factory resonators go a long way in keeping the sound in check. Perhaps you can put some glass pack mufflers in the same area as the stock resonator go.

 

[alex12gt]

Gt500s

 

[REPCobra10]

I have Magnaflow O/R X and Magnaflow Competition C/B. I liked the deep tone when I first installed it, but it got old real quick because it was very raspy and far too loud, as well. I had my local exhaust shop weld two bullet mufflers into the piping just before the axle and I could not be happier. My car sounds much better and I'm much happier with it now, being that it's my daily driver. It has a very clean and crisp sound now. There is no rasp or popping and it retains that much desired deep exhaust note. I hope this helps...

 

[BPatterson]

GT500's. I have an orx, deleted resonators, and flowmaster outlaws. Mine trumpets as well. Swapping to the GT500's will cure it. It's just the style of muffler we run that causes it.

 

[5pointohh]

I have yet to hear a o/r pipe setup I liked. Most of them do sound raspy.

 

[drewzx3]

I have yet to hear a o/r pipe setup I liked. Most of them do sound raspy.

Same here I dont care for my exhaust tone. Long tubes on the other hand make any exhaust sound great.

 

[corepwn]

For the most part these cars seem to be like LS1s and generally sound like crap at anything except idle, cruise, and WOT.

I'm not sure if it's the alum blocks, the firing order, the muffler placements or what. I used to think that no mustang v8 could sound bad, but I guess once Ford got the NA performance above GMs, the part throttle acceleration sound went to shit lol.

I now have stock manifolds, OR-H, stock resonators, and GT500s. It's not terrible rasp but it's not nearly as smooth as the older 4v 4.6 cars.

 

[REPCobra10]

Long tubes on the other hand make any exhaust sound great.

+1! Long-tubes definitely make a Hell of a difference in exhaust note.

 

[Squamishcoyote]

I think it's in the muffler placement, on the older cars the muffler was in the middle of the car and had a long length of pipe after them... I'm tempted to put in a set of 40 series at the straight section of pipe right after the x-pipe

 

[MikeLTDLX]

Try a set of 3 inch Bullets as resonators. They cut down the rasp quite a bit. I have tons and tons of videos with my various exhaust experiments on my YouTube channel down there in my sig.

Mike

 

[Z25OH]

JBA 3inch high flow cats...in place of the cat deletes....I HIGHLY recommend them

Sound amazing

 

[REPCobra10]

Try a set of 3 inch Bullets as resonators. They cut down the rasp quite a bit.

:beer: That's what I did...and I love it!

 

[truebluedevil02]

Borla S-type and Flowmaster american thunder mufflers are the deepest sounding muffler for these cars.

 

[Chris_Red_V8]

Can I see some videos of the setups proposed?

 

[SILV03MustangGT]

heres my channel, i have SW long tubes catted x and the Competition catback, there is also vids of my setup with the SW retro chambered catback.

2009YFZR's channel - YouTube

heres mikes channel he has alot of exhaust vids and setups he tested.

mbreinin's channel - YouTube

 

[grnenvy]

I had the Magnaflows I had to get rid of them. IMOP they sound like shit on this car. But they are made very well and are very lite.

 

[atistang]

somewhere (cant remember if its svtforums or other forums) there is a list of different exhaust clips

the cleanest best sounding setup without long tubes was offroad x pipe, deleted resonators, and gt500's

ill try and find the clip, but it sounded mean and clean

 

[five.slow]

I added dynomax bullet mufflers where my factors resonators were and it killed the rasp