I like the spintech better in every category.

 

I think they both sound great, but I think the spintech sounds way meaner

 

agree spintech all the way, there is not one part where i thought the gmmg even sounded a lil better

 

GMMG sounds MUCH better, more refined than the Spintech. If anything the Spintech had the rasp of the two.

 

being that I have a cam and GMMG c/b on my trans am... I really liked the sound of the Spintech on your GTO....

Kinda strange....

 

sounds beastly both ways

 

i have a gmmg chambered on my ls1, love it. your goat sounds good better w/ the spintechs tho :/

 

Im digging the GMMG. I have a buddy with Spintech on his GTO and the clip doesnt do it justice. I have GMMG on my car though, so Im kind of biased.

 

HAhahaha so many mixed opinions! This is kinda how i feel too though i like the gmmg at wot but then again i do kinda feel like the spintechs might have sounded a little bit better idk what to think lol at least it doesnt sound like crap with the new setup i guess

 

spin tech sounds better at WOT, but for cruising purposes i would go with GMMG. i had JBA on my GTO when i had it and it was muffled just like the GMMG. if i didn't dd my GTO i would've gone with spin tech or the stainless exhaust works duals with 64 GTO tips.

 

Sounds mean as hell! GMMG ftw!

 

With an X pipe I would get some single chambered muffs, that is the meanest sound.

The GMMG is so much smoother, but I like that nasty sound of the spintech...really cannot go wrong with either.

 

Here is best one i have heard.

http://www.youtube.com/watch?v=iH73LaelJo4

 

Sorry, but Spintech sounds much better to me!

 

Yeah i have a x pipe on mine. But yeah i may have made a mistake changing it because those spintechs did sound really good, but i do still think it sounds good with the gmmg so idk waht the hell to think haha

 

I like the second set the best.

 

I say you go back to the Spintechs lol.. They sound really good with the X pipe