Hello

[BeatAChevy289]

Hello, and the elusive turndown ?

Hey guys, I'm new here and I just wanted to pop in and say hi. I drive a 1966 Coupe 289 4bbl as my casual driver. I'm not new to Mustangs because I spent almost two years getting mine roadworthy and she's still kicking just fine with 191,000miles or I would have rebuilt the motor a while ago. I just have a quick question. Dual exhaust was put on it back in the 70's but the mufflers are not labeled or coded so I have no idea what they are but they are not rusted at all. The car is fairly loud but not anywhere near what I would like it to be. When I rev it I can hear my performance fan on the motor almost as loud as the exhaust. Do you think it would make a bigger difference in sound if I just unbolted the exhaust from the back of the mufflers and put turndowns on them? I figure it may help a little and keep me from running a straight pipe with a turndown tip (which I have now ruled out). What do you think? Later <><

 

[Pakrat]

Are you saying run the car without the mufflers at all??? I don't know Georgia laws but I don't think any state allows that.

For maximum loudness I would suggest replacing the mufflers with good ole fasion inexpensive glasspacks.

 

[BeatAChevy289]

No, not that. Just removing the tailpipes and mounting a turndown on the back of each muffler. Later <><

 

[mustang70]

The turn downs will give you more of a grumble. That's what I have on mine. And it was louder than my buddies' 460 with tailpipes. If you really want to get louder you're probably going to have to put on new mufflers.

 

[Pakrat]

Hunh, I thought turn downs would be less aggresive. Don't most stock pipes turn down these days?

 

[66P51GT]

Hunh, I thought turn downs would be less aggresive. Don't most stock pipes turn down these days?

I think what he is referring to is putting turn-downs directly behind the muffler and removing the exhaust from there back. By shortening the exhaust pipe you increase the db level. This is especially true inside the car since it will be resonating right under the back seat rather than under the rear bumper.

Tips are in all shapes and sizes. No way to say that most stock tips turn down.

 

[BeatAChevy289]

Thats what I meant. I've got a 2.5L in my Wrangler and my tailpipe disconnected itself while off-roading one day and it made it rediculously louder. I was just wondering if it sounds good on a V8 cuz it sounded like a fart can on the Jeep. I guess the answer is yes. I'm going to cut the tailpipe off my Stang over the weekend I guess and throw some turn downs on it. Thanks. Later <><