Hey guys I have a Greddy 18g TT kit and I am looking at the GTM and AAM 3" downpipes with open dumps. Does anyone have either of these, and can anyone tell me which set is a better build quality as far as fitment? I know GTM offers recirculation as a add on, and I know AAM has had fitment issues with their exhausts. Thanks

 

i say GTM

 

i say 1st ready to ship wins

 

I'd say AAM..I have it..there are no fitment issues and it sounds wicked. Really sounds nasty under boost with the open dumps...I can't speak for the other but I really like the AAM.
I Have a built motor with the same greddy kit you are talking about...529HP and 498 lb.ft.

 

AAM for the Price.

 

I'm leaning toward AAM myself purely on price. Unless there is some drastic performance, quality, or fitment issue, I don't see the need for more coin. My .02

 

AAM > GTM They both are the same pretty much, except GTM wants almost $400 more than AAM. I have AAM and never had a problem with them and had them on for over a year. Just grab the AAM's

 

I have the AAM and they sound NASTY!!! Love mine.. Better price too

 

Generally speaking, most people in this forum will recommend what they have. In some cases they actually did research before purchasing, but more often than not, this is not the case.

I recommend taking a look at both. Look for any restrictions or bottle necks that may exist. Also, if you can hear them in person, that would be good. Otherwise, you may be able to find video clips where you can listen to them.

 

Thanks guys, all input is appreciated

 

I have AAM also... But you'll be happy with either.

The AAM cost much less as stated above, and I had no fitment issues either. GTM is good too, I like the sound a slight bit more however on the AAM. Personal taste really IMO.

 

Thanks for all the kind words guys. We've seen AWESOME power gains with our Downpipes on the Greddy Kit, and yes, it does sound pretty ill under wide open throttle.

zman1982, hit me up a pm or give us a call. We've got the product in stock ready to go, and we're always willing to hook up forum members for a great price.



-Jon

 

heres what aam downpipes/dumps sound like...street tune 500rwhp @13psi

http://s70.photobucket.com/albums/i1...nt=dynorun.flv

 

Sick. Thanks for the video! It's almost like using a stethoscope to listen to the turbos internally!

 

Pm sent

 

They sound awesome.

 

woow i didnt know that GTM needs 400 more

AAM FOR SURE

 

You got mail.

 

Well after talking to some people I believe I am going with the AAM pipes. GTMs product is also a great product, but with similiar results and cost effectiveness I decided to go AAM. Thanks for all the input from everyone, September cant come soon enough for me to get home and start this build.

 

I agree on the AAM. I was looking at AAM and another company back in 2007, the other pipes had to be ordered and were about 3-400 more. After talking with Sharif and decidingthe gains would be minimal with the other set I chose to save the money and use the AAM DP's. Never had issues and they do sound great.