GMMG v Borla
#1
Member
Thread Starter
Join Date: Jul 2002
Location: Brick, NJ
Posts: 412
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 Z28
Engine: 350
Transmission: Auto
GMMG v Borla
I'm trying to decide which system would be better. I currently don't have a cat but was thinking of putting on a high flow cat but I'm worried that if I use GMMG it wont be as loud as my current set up which is 2.5in flowmaster 80 w/o cat. I like loud with a good tone and i currently have a cutout so i like the idea of the Borla but if it wasn't for that I'd probably go with GMMG. I want a new system because i want to get a better 3in flowing system and to get rid of the small leak coming from the cutout that wont go away and just put a high flow in its place so i don't have to pay 200 for an inspection sticker.
Does anyone that has either of these exhausts on their third gen live in or near Bristol, RI or Howell, NJ. I'm away at school thats why I have to locations.
Does anyone that has either of these exhausts on their third gen live in or near Bristol, RI or Howell, NJ. I'm away at school thats why I have to locations.
Last edited by 87camaro kid; 04-23-2009 at 02:14 PM.
#3
Junior Member
iTrader: (1)
Join Date: Dec 2006
Location: hagerstown,md
Posts: 50
Likes: 0
Received 0 Likes
on
0 Posts
Car: 90 chevy camaro convertible iroc
Engine: 305 tpi
Transmission: 700r4 with hurst dual gate shifter
Axle/Gears: 3.73
Re: GMMG v Borla
where can you buy the gmmg for our 3rd gen cars
#4
Supreme Member
Join Date: Sep 2005
Location: Osceola Indiana
Posts: 2,151
Likes: 0
Received 0 Likes
on
0 Posts
Car: 92 RS(sold) 1989 IROC-Z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: ones that turn
Re: GMMG v Borla
gmmg's website just google them I vote for gmmg thats what Im buying a
#5
Member
Thread Starter
Join Date: Jul 2002
Location: Brick, NJ
Posts: 412
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 Z28
Engine: 350
Transmission: Auto
#6
Supreme Member
iTrader: (3)
Join Date: Sep 2006
Location: sunny so cal.
Posts: 1,531
Likes: 0
Received 1 Like
on
1 Post
Car: 1990
Engine: 305
Transmission: 700r4
Axle/Gears: stock
Re: GMMG v Borla
i went over and looked at their site and its the same system for both. sounds very nice. i wonder if you can just buy the chambers and not the rest of the sustem?
i just noticed that they are only 2 1/2 inch pipes while borla are 3"
i just noticed that they are only 2 1/2 inch pipes while borla are 3"
Last edited by tony_cogliandro; 04-20-2009 at 11:23 PM.
#7
Member
Thread Starter
Join Date: Jul 2002
Location: Brick, NJ
Posts: 412
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 Z28
Engine: 350
Transmission: Auto
Re: GMMG v Borla
I was actually wondering that, I wasn't sure if the GMMG system was 3 in. to 2.5 in. tail pipes or is the whole system 2.5 in., it wasn't very clear on their web page. If its just 2.5 the whole way then I'm definitely going with Borla.
Does anyone have GMMG with a high flow cat? does it sound good and how loud is it?
Does anyone have GMMG with a high flow cat? does it sound good and how loud is it?
Trending Topics
#8
Member
Join Date: Jun 2004
Location: Michigan
Posts: 295
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1989 Formula
Engine: L98
Transmission: 700R4
Axle/Gears: 9 bolt GW6
Re: GMMG v Borla
I am currently using GMMG catback, I've been running with it for almost 2years. I’m running Hooker 2055 headers ceramic-coated, with duel catco cats.
Personally I don’t think its loud, just sounds a lot better.
BTW the GMMG is 3" kit but splits at your axel than to 2.5" duel tips, i went with stainless oval tips.
Personally I don’t think its loud, just sounds a lot better.
BTW the GMMG is 3" kit but splits at your axel than to 2.5" duel tips, i went with stainless oval tips.
#10
Supreme Member
iTrader: (2)
Join Date: Sep 2006
Location: Houston, TX
Posts: 2,118
Likes: 0
Received 14 Likes
on
11 Posts
Car: 1989 GTA
Engine: SuperRam 350
Transmission: Pro Built S/S TH700R4
Axle/Gears: 3.27
Re: GMMG v Borla
I currently don't have a cat but was thinking of putting on a high flow cat but I'm worried that if I use GMMG it wont be as loud as my current set up which is 2.5in flowmaster 80 w/o cat. I like loud with a good tone and i currently have a cutout so i like the idea of the Borla but if it wasn't for that I'd probably go with GMMG.
Stock manifolds and Y-pipe, no cat, Flowmaster American Thunder.
Idle 72 dB
70 mph 80 dB
WOT 88 dB
Idle is a cold start inside the garage. 70 mph is in O/D. WOT is measured at 5000 RPM under load. "A" weighted dB scale used. All are done inside the car with the windows closed, radio off, A/C set to OFF.
Stock manifolds and Y-pipe, Catco cat, GMMG with oval tips.
Idle 73 dB
70 mph 78-80 dB
WOT 90 dB
The WOT figure is misleading. Although 2 dB doesn't sound like much, consider that with the GMMG I'm getting 88 dB at 4000 RPM (the same as the Flowmaster at 5000 RPM)
The GMMG has a much deeper sound than the Flowmaster. No drone which is nice too. Just driving at 30 mph home from the exhaust shop, the car sounded completely different. More aggressive and intimidating.
Intermediate pipe is 3". Tailpipes are 2.5"
#11
Member
Join Date: Jun 2004
Location: Michigan
Posts: 295
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1989 Formula
Engine: L98
Transmission: 700R4
Axle/Gears: 9 bolt GW6
Re: GMMG v Borla
I had Flowmaster American Thunder cat back before the GMMG, just like Reid says. It's hard to explain but i say the GMMG has allot better tone. I get complements on my GMMG, nobody noticed the Flowmaster. I’m sure whatever one you decide on you will like.
I put my GMMG on, it has 3" intermediate pipe.
I put my GMMG on, it has 3" intermediate pipe.
Last edited by BulliTooth; 04-22-2009 at 07:33 AM.
#12
Member
Thread Starter
Join Date: Jul 2002
Location: Brick, NJ
Posts: 412
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 Z28
Engine: 350
Transmission: Auto
Re: GMMG v Borla
so i would guess you guys think GMMG has a better sound than Borla? I like the deep tone so it sounds like I would like GMMG better
#13
Member
Join Date: Jun 2004
Location: Michigan
Posts: 295
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1989 Formula
Engine: L98
Transmission: 700R4
Axle/Gears: 9 bolt GW6
Re: GMMG v Borla
I was comparing the GMMG to Flowmaster. I’m not sure about Borla, I have only heard Borla on videos. But what i have heard from vids Borla sounds good.
#14
Supreme Member
iTrader: (9)
Re: GMMG v Borla
When I was deciding on a catback, it came down to the GMMG and the Borla too. I went with the Borla with an electric cutout in place of the "plate". The GMMG is always quit loud. Which does sound really good. But because I daily drive my Camaro. I was worried it would get annoying. So that's why I went with the Borla. I can open the cutout and have a great/unique sound, or close the cutout and it's nice and quit.
Last edited by krisb410; 04-23-2009 at 10:17 AM.
#15
Supreme Member
iTrader: (3)
Join Date: Sep 2006
Location: sunny so cal.
Posts: 1,531
Likes: 0
Received 1 Like
on
1 Post
Car: 1990
Engine: 305
Transmission: 700r4
Axle/Gears: stock
Re: GMMG v Borla
When I was deciding on a catback, it came down to the GMMG and the Borla too. I went with the Borla with an electric cutout in place of the "plate". The GMMG is always quit loud. Which does sound really good. But because I daily drive my Camaro. I was worried it would get annoying. So that's why I went with the Borla. I can open the cutout and have a great/unique sound, or close the cutout and it's nice a quit.
and did your electric cut out also go to a straight pipe out the passengers side back?
#17
Supreme Member
iTrader: (26)
Join Date: Nov 2002
Location: Moneta, VA
Posts: 2,108
Likes: 0
Received 6 Likes
on
5 Posts
Car: 89 formula 350
Engine: ls1 magnuson tvs2300 supercharger
Transmission: T56
Axle/Gears: 4.11 Dana 44!
#18
Senior Member
iTrader: (9)
Join Date: Jun 2002
Location: La Mirada, California
Posts: 742
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1991 Camaro RS
Engine: L98 350 TPI
Transmission: 700R4
Axle/Gears: ZT LSD with 3.42 - LS1 brakes
Re: GMMG v Borla
There was a guy at my work that had GMMG on an LS1 camaro, and it sounded nice at idle, but once given any gas it didnt sound good at all. But that is also an LS1, and not a 3rd gen... :/
I have the Edelbrock RPM system (with stock L03 manifolds and Y). I love the sound of it, SOOO much better than the Flowmaster. But then again, just about anything sounds better than the Flowmaster...
You can hear mine in the vid in my sig
I have the Edelbrock RPM system (with stock L03 manifolds and Y). I love the sound of it, SOOO much better than the Flowmaster. But then again, just about anything sounds better than the Flowmaster...
You can hear mine in the vid in my sig
#19
Member
Thread Starter
Join Date: Jul 2002
Location: Brick, NJ
Posts: 412
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 Z28
Engine: 350
Transmission: Auto
Re: GMMG v Borla
decided on the Borla and it sounds awesome and i love the fact that I have adjustable sound which the GMMG didn't. I'll try and get some sound clips when its up on the dyno
#20
Supreme Member
iTrader: (3)
Join Date: Sep 2006
Location: sunny so cal.
Posts: 1,531
Likes: 0
Received 1 Like
on
1 Post
Car: 1990
Engine: 305
Transmission: 700r4
Axle/Gears: stock
Re: GMMG v Borla
when i have trouble sleeping i play this sound track on a continuous loupe - puts me right to sleep and i dream about camaro's.
http://www.youtube.com/watch?v=h0FM5eVASdM
http://www.youtube.com/watch?v=h0FM5eVASdM
#22
Member
Join Date: Oct 2007
Location: South Jersey
Posts: 184
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86 WS6 TransAm
Engine: LG4 4BBL
Transmission: T5WC
Axle/Gears: 327
Re: GMMG v Borla
I just installed my Borla. A bit louder than my Hooker CB. I have 1 7/8 headers, 3" highflow cat, I pipe with cutout.
Thread
Thread Starter
Forum
Replies
Last Post