Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

GMMG's in, fitment problem

Thread Tools
 
Search this Thread
 
Old Jan 25, 2010 | 08:22 PM
  #1  
sneaky7980's Avatar
Thread Starter
TECH Enthusiast
iTrader: (15)
 
Joined: Mar 2007
Posts: 700
Likes: 5
From: Walls, MS
Default GMMG's in, fitment problem

99 T/A A4

For you GMMG owners, i have a few questions/problems;

The one regular c clamp that comes with the kit holds the I pipe onto the factory Y pipe correct?

Secondly, did you have any problems securing the i pipe to the rest of the exhaust? Either i'm being to gentle on that clamp or that stainless doesn't want to give because i can not get that junction even remotely tight enough. The whole setup "pivots" there allowing the i pipe to hit the floor.

Also did you guys have to massage the heat shielding by the gas tank any?

Thanks for the help, i just assumed this kit would fit a little better than this.
Reply
Old Jan 26, 2010 | 02:49 AM
  #2  
uphigh07's Avatar
TECH Enthusiast
15 Year Member
iTrader: (48)
 
Joined: Feb 2008
Posts: 577
Likes: 0
From: Garden City Kansas
Default

for the i pipe issue i would take and have it welded up out of the way or it will rattle against your floor board. that is what mine does just havent had time to take it to the muffler stop. as for the heat shield on the gas tank i had to bend mine just a little bit but thats not a big deal just bend it out of the way
Reply
Old Jan 26, 2010 | 03:58 AM
  #3  
hitmanws6's Avatar
TECH Veteran
iTrader: (20)
 
Joined: Dec 2008
Posts: 4,041
Likes: 5
From: Orange, CA
Default

yes, i had all these issues. get the exhaust connected the best you can, then have it welded. the heat shield can be bent easily with a pay bar
Reply
Old Jan 31, 2010 | 12:31 PM
  #4  
sneaky7980's Avatar
Thread Starter
TECH Enthusiast
iTrader: (15)
 
Joined: Mar 2007
Posts: 700
Likes: 5
From: Walls, MS
Default

UPDATE:

I got a different style of clamp that is like a band clamp but it has a lip on both outer edges of the "band". I used that where the i pipe connects the rear assy, with one lip on the i pipe and the other on the rear assy. That thing couldn't be any tighter! I also massaged the heat sheild under the gas tank.

Initially i was hoping that this would be good enough to get me by for a few days until i could get it welded, but I have no NVH or exhaust leaks so im leaving it as is until i do have a problem.

The clamp by the way is a 3" bleed air clamp designed for aircraft.
Reply
Old Jan 31, 2010 | 01:07 PM
  #5  
brian_rs/ss's Avatar
TECH Addict
 
Joined: Mar 2009
Posts: 2,099
Likes: 3
From: Texas/Afghanistan
Default

lol nice fix! you should def post up a vid though.
Reply
Old Jan 31, 2010 | 03:57 PM
  #6  
billcanfixit's Avatar
Teching In
iTrader: (2)
 
Joined: Mar 2008
Posts: 17
Likes: 0
From: lakeland florida
Default

Installed mine today,had same problem with front pipe close to floor and hitting tank shield, just have work it out of way and tighten,do not like how tips are not close to bumper tho.
Reply
Old Jan 31, 2010 | 05:37 PM
  #7  
sneaky7980's Avatar
Thread Starter
TECH Enthusiast
iTrader: (15)
 
Joined: Mar 2007
Posts: 700
Likes: 5
From: Walls, MS
Default

I agree about the tips, I'm not happy with them at all. I'm going to re install my mecham oval clones after I modify them slightly. Overall though this catback far exceeded what I was expecting! I couldn't be happier.
Reply
Old Jan 31, 2010 | 05:42 PM
  #8  
brian_rs/ss's Avatar
TECH Addict
 
Joined: Mar 2009
Posts: 2,099
Likes: 3
From: Texas/Afghanistan
Default

just curious, how much did you pay/where'd u buy?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Jan 31, 2010 | 06:47 PM
  #9  
sneaky7980's Avatar
Thread Starter
TECH Enthusiast
iTrader: (15)
 
Joined: Mar 2007
Posts: 700
Likes: 5
From: Walls, MS
Default

Originally Posted by brian_rs/ss
just curious, how much did you pay/where'd u buy?
$706 shipped, vengeance racing. They only had a few left as of a few weeks ago. Good luck!

EDIT;
I see that your running TD's, there is a member who put up a video recently of a TD GMMG setup with longtubes you should check out.
Reply
Old Feb 1, 2010 | 05:20 AM
  #10  
thewholefnshow1's Avatar
TECH Enthusiast
iTrader: (2)
 
Joined: Mar 2009
Posts: 508
Likes: 0
From: Chattanooga, TN
Default

That would be me and here's the link:
https://ls1tech.com/forums/generatio...ew-videos.html

I'm going to try and get more and better videos it was windy that day also. We just got done with some nasty snow here. Basically I got Kooks LT and Kooks catted Y they cut the Y out and installed 2 bends into the x-pipe and the rest of the pipes I got from bassani.
Reply




All times are GMT -5. The time now is 01:29 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-04 18:13:20


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE