Boss Exhaust setup from Craigslist
Thread Starter
Shelby GT350 Member



Joined: September 11, 2006
Posts: 2,349
Likes: 5
From: Cumming, GA
Boss Exhaust setup from Craigslist
I wasn't planning on getting a Boss setup for my car .. but saw it on Craiglist for a great price so snagged it.
Now I just have to get in the mood one day to put the car up on jack stands and wrestle with the exhaust.
Now I just have to get in the mood one day to put the car up on jack stands and wrestle with the exhaust.
Thread Starter
Shelby GT350 Member



Joined: September 11, 2006
Posts: 2,349
Likes: 5
From: Cumming, GA
Exhaust installed .... I did not install the restrictor plates. I also have GT500 mufflers.
Cold idle: Definitely a louder rumble.
Idle: Can't really tell any difference.
Part Throttle: Definitely louder and meaner
WOT: Sounds Bad *** ... Almost like my Ducati with Termignomi Exhaust
I read many comments about the best sound is to use the restrictor plate but drill hole out to 3/4 inch. For now I will leave it without plates.
The main thing is there is no drone at highway speeds and it does not interfere at all with hearing the radio while cruising.
Cold idle: Definitely a louder rumble.
Idle: Can't really tell any difference.
Part Throttle: Definitely louder and meaner
WOT: Sounds Bad *** ... Almost like my Ducati with Termignomi Exhaust
I read many comments about the best sound is to use the restrictor plate but drill hole out to 3/4 inch. For now I will leave it without plates.
The main thing is there is no drone at highway speeds and it does not interfere at all with hearing the radio while cruising.
Thread Starter
Shelby GT350 Member



Joined: September 11, 2006
Posts: 2,349
Likes: 5
From: Cumming, GA
Exhaust installed .... I did not install the restrictor plates. I also have GT500 mufflers.
Cold idle: Definitely a louder rumble.
Idle: Can't really tell any difference.
Part Throttle: Definitely louder and meaner
WOT: Sounds Bad *** ... Almost like my Ducati with Termignomi Exhaust
I read many comments about the best sound is to use the restrictor plate but drill hole out to 3/4 inch. For now I will leave it without plates.
The main thing is there is no drone at highway speeds and it does not interfere at all with hearing the radio while cruising.
Cold idle: Definitely a louder rumble.
Idle: Can't really tell any difference.
Part Throttle: Definitely louder and meaner
WOT: Sounds Bad *** ... Almost like my Ducati with Termignomi Exhaust
I read many comments about the best sound is to use the restrictor plate but drill hole out to 3/4 inch. For now I will leave it without plates.
The main thing is there is no drone at highway speeds and it does not interfere at all with hearing the radio while cruising.
Thread Starter
Shelby GT350 Member



Joined: September 11, 2006
Posts: 2,349
Likes: 5
From: Cumming, GA

I have the single tip GT500 A/Bs, and I love them too. The tone is nearly identical to my ear. It was a $280 mod that really transformed the sound of the Mustang.
There is some sound clips somewhere on this forum comparing the quads and the singles. The quads will be a little louder. One of my neighbors has a 2013 GT500 with the quads, and i can tell when the car drives by from inside my house 
I have the single tip GT500 A/Bs, and I love them too. The tone is nearly identical to my ear. It was a $280 mod that really transformed the sound of the Mustang.

I have the single tip GT500 A/Bs, and I love them too. The tone is nearly identical to my ear. It was a $280 mod that really transformed the sound of the Mustang.
Where did you get your AB?
But once I got it on, WOW, what a difference. There is more burple when coasting down in gear, the tone is much deeper, and it's louder than stock. I can actually shift by engine sound now without hitting the rev limiter (somehow the stock exhaust seemed to flat line around 6K RPM, so 6K and 7K sounded the same) . Plus I know I can cut the resonators for even more volume if I feel like it later on.



These are way quieter than i thought they'd be!