GMMG & LTs
GMMG & LTs http://www.ls1sounds.com/GMMG/GMMG_J...ats_LT1rev.ASF
http://www.ls1sounds.com/GMMG/GMMG_J...s_LT1flyby.ASF
There are a few quick vids I got because a few ppl were interested in what it sounded like. Enjoy.
-J
http://www.ls1sounds.com/GMMG/GMMG_J...s_LT1flyby.ASF
There are a few quick vids I got because a few ppl were interested in what it sounded like. Enjoy.
-J
Yes the rev is alright, not as deep as I would've hoped, but a nice tone. Under load it sounds a whole lot better IMO, my friend just likes to rev his car, and I guess he thinks everyone else does too...
Thanks for the comments!
-J
Thanks for the comments!
-J
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Originally Posted by lastcall190
Yea it's got dual cats. It's pretty loud in person for having cats on it.
-J
-J
but it sill sounds awsome!!!
TECH Fanatic
Joined: Nov 2001
Posts: 1,098
Likes: 0
From: I-L-L-I-N-O-I-S
Originally Posted by 02WS6Bird
LS1's sound so much better with GMMG and any application IMO sounds mean tho there pal..
nice job
nice job
Once I get some Mac headers on this thing it will make your LS1 with the GMMG & headers sound like it's running 2 less cylinders...
Well I've heard it both ways on both motors and I agree the best cat-back/header combo in terms of pure muscle car sound on the LS1 is the GMMG, but an LT1 with a similar set-up still sounds much deeper & meaner...Can't go wrong either way though...
But I agree that clip doesn't sound the greatest (heck, my car car w/ stock manifolds sounds a lot deeper than that!). Got to hear it in person...
Mike
My friend's parents go away after Christmas, I'll get a GOOD camera, and get some GOOD quality sound... I'd still like to hear it with !CAT in person. My friend's LS1 sounds... interesting... with no cats on his GMMG.
I didn't want this to turn into a LT1 sound vs LS1 sound debate
2000LS1Z28, IIRC you are local to a guy that has MACs with GMMG? Think he's got a clip with the offroad pipe in? From the looks of it I'd say you have stock in GMMG
-J
I didn't want this to turn into a LT1 sound vs LS1 sound debate
2000LS1Z28, IIRC you are local to a guy that has MACs with GMMG? Think he's got a clip with the offroad pipe in? From the looks of it I'd say you have stock in GMMG
-J
Originally Posted by 02WS6Bird
LS1's sound so much better with GMMG and any application IMO sounds mean tho there pal..
nice job
nice job
Lastcall, when you get some more clips, see if you can get one up at the top of the power band. It has to sounds incredible up top.
LT1 sounds way better than LS1, as far as sounding like an old muscle car. I still love the way that they LS1 sounds with GMMG, but my LT1 with GMMG sounds just as good. I can't wait to get the MAC headers on there now.
TECH Fanatic
Joined: Nov 2001
Posts: 1,098
Likes: 0
From: I-L-L-I-N-O-I-S
lastcall190,
How does yours and DaveLT1 9's sound compared to each other? I just noticed on his web page that you guys have the same exact header/dual cat/Y-pipe set-ups, but you're running the GMMG & him the SLP Loudmouth...I've always thought they sounded similar under 3000rpms but that the GMMG sounds so much deeper and more refined at full throttle up top (the GMMG sounds like a "muscle car" whereas the Loudmouth sounds like a "nascar").
And I do not have any clips of an LT1 with the GMMG & Mac headers, but I got the chance to hear a '94 Z28 with that combo both with & without a cat back in the spring and it was easily the deepest sound I've ever heard out of any 4th gen hands down...It was definitely louder all around without the cat (although it had a little rasp in the mid rpms; sounded more like a violent flapping sound). But he revved that thing up for me while I stood behind his car and all I could do after hearing it was this... WOT was super loud and surprisingly DEEP all the way to redline too...That's why I'm going to put some Mac's on my LT1...Just can't decide whether I want to run a highflow cat or a Dynomax bullet in place of where the cat would be...
BTW, shorty or mid-length headers produce a "deeper, thoatier" sound than any longtube set-up (it's just how in they are designed).
How does yours and DaveLT1 9's sound compared to each other? I just noticed on his web page that you guys have the same exact header/dual cat/Y-pipe set-ups, but you're running the GMMG & him the SLP Loudmouth...I've always thought they sounded similar under 3000rpms but that the GMMG sounds so much deeper and more refined at full throttle up top (the GMMG sounds like a "muscle car" whereas the Loudmouth sounds like a "nascar").
And I do not have any clips of an LT1 with the GMMG & Mac headers, but I got the chance to hear a '94 Z28 with that combo both with & without a cat back in the spring and it was easily the deepest sound I've ever heard out of any 4th gen hands down...It was definitely louder all around without the cat (although it had a little rasp in the mid rpms; sounded more like a violent flapping sound
). But he revved that thing up for me while I stood behind his car and all I could do after hearing it was this... WOT was super loud and surprisingly DEEP all the way to redline too...That's why I'm going to put some Mac's on my LT1...Just can't decide whether I want to run a highflow cat or a Dynomax bullet in place of where the cat would be...BTW, shorty or mid-length headers produce a "deeper, thoatier" sound than any longtube set-up (it's just how in they are designed).
TECH Senior Member
Joined: Jun 2003
Posts: 9,339
Likes: 3
From: NYC metro area
Originally Posted by 02WS6Bird
LS1's sound so much better with GMMG and any application IMO sounds mean tho there pal..
the LS1 can thank it's aluminum block for it's higher pitched cackling exhaust... most people on the board admit that the LT1 sounds much better than the LS1, especially with a full exhaust.
https://ls1tech.com/forums/showthrea...1+sound+better
PS - Ritz, that's a nice *** sig pic.