I have the GMMG, and while I love the sound, it's gonna be too loud for me when the longtubes go on. I'm thinking of welding a 3" round magnaflow bullet muffler into the I pipe. Do you guys think I'd be crazy for hacking up such an expensive exhaust? I also thought of adding a powerstick, but I think the magnaflow would tone it down a little more. I'd rather keep the GMMG and find a way to knock down the volume a bit, rather than go with a different catback. Have any of you guys put a muffler in the I-pipe of your GMMG?

 

Your crazy..... I like you, but your crazy!

haha, go for it man! I think that it would be too quiet for my taste though.

 

Well you have lots of options.

You could just run a catted Y pipe, it will help with noise supression and as long as you get good high flowing cats they won't really hamper performance.

A glasspack muffler in the I pipe should help reduce noise also, but it will change the tone of it.

Stainless Works offer a similar exhaust to the GMMG but it uses 3 mufflers as opposed to two. But it is quite pricey. Adding a chambered muffler (from Stainless Works or a Powerstick (these are not stainless steel)) would IMO be better than a glass pack muffler as it should keep the same sort of sound.

 

It is very loud with ORY but I love every minute of it. Mine is not a DD so when I fire it up for the weekends the in me comes out.

 

LOL! If only I lived in Texas, I'd have a cam and exhaust more to your liking! Too bad I live in CA where the ricers have given the cops a hard on for loud exhaust, because that means you've modified your car for "streetracing." I might go ahead and throw the magnaflow in there, just because I'm crazy like that lol! I guess there's no one here to ask how it would sound, because no ones done anything stupid like this before.......

 

There offering Stainless Works at a discount price right now, something like $587 due to overstocking. If that is the route you take, or if you plan on selling your GMMG, I CALL DIBS!!

 

I will trade you for your ggmg for my hooker exhaust + some money. The hooker is one of the quietest catbacks on the market

 

The thought has crossed my mind, but the GMMG sounds SO good I'd like to keep it if I can make it a little more quiet.

 

Someone on this board added a borla muffler and liked the sound.

 

well let me know if you change your mind, as I would actually like my car louder. If you change mufflers I would take that as well

 

I was thinking about the Borla XR-1, with the case is 5" vs. 4" for the Magnaflow. I just don't think I'd like the extra loss in clearance.

 

I'll keep that in mind.

 

if u want to keep more of the GMMG sound just a dynomax bullet. the longer the length of the bullet the quiter it will be while retaining more of the GMMG sound

 

You're crazy man!!! Just get an ORY and a Flowmaster American Thunder for your pacesetters. That'll shut it right up! I can't believe how quiet that exhaust is.... after running open headers for a while.

 

goto google and type in power stick. It's a chambered muffler just like the sweet thunder but instead of choking down it stays 3" through out(better flow) Slap one of those in ur i-pipe to keep that chambered sound. They are just as cheap as bullets too!

 

I want a GMMG, but I bet you don't want my loud a$$ X-pipe with no mufflers.

 

Starting Point Go with the SPecs From a Berger Camaro. or another special production camaro. and find what they use . They all use a good Tuned Cam along with headers

 

 

hahah, When I scrapped my Flowmaster for GMMG and added a Cat my exhaust became louder than Flowmaster and no Cats.

 

Im selling my B&B if interested.