Header install finally complete
Header install finally complete After a month and ten days I completed my header install, Pacesetter LT's with ORY-pipe. That has to be close to a record for longest install. I got the old system off easy enough. The header install wasn't that bad, taking off the coil pack on the passenger side helped. Then I go to put on the y-pipe, and something just doesn't look right. I recived the wrong y-pipe (lt1 instead of ls1). So it took a few weeks to send the old one back and get the right one. Put the y-pipe on and try to connect the Loudmouth to the y-pipe, and the Loudmouth pipe was crimped and I could not get the pipe onto the y-pipe far enough. Tried heating and hammering for a solid hour with no luck. 
A few days later found a pipe expander and got it on. So I've driven the car the past two weeks now with no problems other than the y-pipe banging, but it's not that bad.
The car is actually quieter than I thought it would be driving along at 55. And its plenty loud enough when I want it to be. I will probably get a bullet muffler installed sometime next spring, but for the rest of this year until winter hits, my apartment complex will just have to deal with the LT's, ORY-pipe, and Loudmouth combination.
A few days later found a pipe expander and got it on. So I've driven the car the past two weeks now with no problems other than the y-pipe banging, but it's not that bad.The car is actually quieter than I thought it would be driving along at 55. And its plenty loud enough when I want it to be. I will probably get a bullet muffler installed sometime next spring, but for the rest of this year until winter hits, my apartment complex will just have to deal with the LT's, ORY-pipe, and Loudmouth combination.
TECH Addict
Joined: Nov 2001
Posts: 2,003
Likes: 0
From: Live Oak, FL - in the woods where the creatures lurk.
The loudmouth I have was 3" EXCEPT for where it connects to the factory Y, which is 2 3/4". And the Pacesetter ORY was necked down on the end less than 3", yet a little bigger than 2 3/4". I had to cut some slits in the end of the Pacesetter Y and hammer that bitch on, as a temporary solution. Later I cut off the end of the ORY up to the 3" section and cut off the 2 3/4" taper from the LM & put a piece of 3" exhaust tubing to connect them.
I highly recommend turning the LM into a "BorlaMouth". It's loud when you get down, but tame enough to navigate through town. The Borla XR-1 -will- get louder over time, but mine has been on for 80,000 miles now and is tolerable, no rasp at all.
I highly recommend turning the LM into a "BorlaMouth". It's loud when you get down, but tame enough to navigate through town. The Borla XR-1 -will- get louder over time, but mine has been on for 80,000 miles now and is tolerable, no rasp at all.
Thats funny, I just finished mine yesterday too, were all doing LT installs at the same time, congrats by the way.
What are you going to do about your ypipe banging? Let me know, it usually doesnt happen for me in lower speeds but 55 and up when the car decelerates is when it usually occurs. Let me know.
What are you going to do about your ypipe banging? Let me know, it usually doesnt happen for me in lower speeds but 55 and up when the car decelerates is when it usually occurs. Let me know.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'
Brett Foote
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
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!
Mine just sat on jackstands for a month though, during primetime summer weather. I'll have to spend some time at ls1sounds.com listening to the options, but borlamouth will prolly be the way I go.
TECH Regular
Joined: Nov 2003
Posts: 463
Likes: 0
From: va baby!
Originally Posted by Chas1
You can get a Mufflex bump stop hanger for the Y pipe banging. Part # 95-LS1-HR. Thunder Racing carries them. My LT's are going on tomorrow!
does anyone have pics of the mufflex bump stop hangar on their car, i have insane amounts of banging and it has to stop
Originally Posted by Rescue Ranger
Lol.. well my roomate bought BBK LT's for his GT in 2003, and still hasn't put em on... ??
moving on
Getting ready to do LT's on mine and the bump stop is the way to go. A freind at work bought a used T/A and it already had one on it and it works great, you don't even know it's there. Plus it's easier than the poly motor mounts!!
in the process of installing my LT's and i cant get the steering linkage off to get the header in any suggestions? and the back manifold bolt on the passenger side. whats the best way to get to it?