C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

LG Headers w/ Stock Pipes

Thread Tools
 
Search this Thread
 
Old Jun 26, 2006 | 07:04 PM
  #1  
hmsminnow's Avatar
hmsminnow
Thread Starter
Cruising
10 Year Member
 
Joined: Mar 2005
Posts: 14
Likes: 0
From: Canandaigua, NY
Default LG Headers w/ Stock Pipes

I may have made a dumb mistake here. Hopefully you guys can straighten me out.
I just got a pair of LG Street LTs. I ordered the "headers only to tie into the stock pipes" option, and now that I have the car apart, I'm having a tough time understanding how this works. Here are my issues:

-It looks headers end right where the stock cats are.
-Even if I can cut the pipe off at a point where the header reaches it, it looks like it's the wrong diameter to slip on.
-If I took it to a muffler shop to get it welded together, stainless and carbon steel can't be welded.

Is the only good option to order the LG X-pipe?
Reply
Old Jun 26, 2006 | 07:12 PM
  #2  
16Again's Avatar
16Again
Team Owner
20 Year Member
 
Joined: Oct 2001
Posts: 46,766
Likes: 5
From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Default

Call Lou, he or the guy's in the shop will give you the options you have. They might even have some type of adapter you can use.
Reply
Old Jun 26, 2006 | 08:38 PM
  #3  
yelloyello's Avatar
yelloyello
Melting Slicks
15 Year Member
 
Joined: Feb 2004
Posts: 2,903
Likes: 0
From: I finished a Marathon, did you? Michigan
CI 6-7, 9-10 Veteran
Default

Originally Posted by hmsminnow

Is the only good option to order the LG X-pipe?
It might be, but give Lou a call he will let you know for sure. Or you could just get rid of the stock exhaust and upgrade.
Reply
Old Jun 26, 2006 | 08:59 PM
  #4  
hmsminnow's Avatar
hmsminnow
Thread Starter
Cruising
10 Year Member
 
Joined: Mar 2005
Posts: 14
Likes: 0
From: Canandaigua, NY
Default

Originally Posted by yelloyello
It might be, but give Lou a call he will let you know for sure. Or you could just get rid of the stock exhaust and upgrade.
I think that"s what I"ll end up doing. I"m just curious if anyone has installed the headers with the stock mid pipes.
Reply
Old Jun 27, 2006 | 10:44 AM
  #5  
brandtdavis's Avatar
brandtdavis
Burning Brakes
15 Year Member
 
Joined: Apr 2005
Posts: 834
Likes: 0
From: Palm Beach Gardens FL
Default

My 97 is at the exhaust shop right now. I bought used TPIS lt's two weeks ago. No Flanges. I wanted to do it all myself. I got the headers in and wanted to use the stock cats to reduce noise, smell, etc. I did cut the cats off where I measured they would slip in to the 3 inch collectors. The stock cat pipe is almost the same size and will not fit. My solution is I'm getting flanges welded onto the lt's and they are going to weld and mate flanges on the stock cats. Then you have a removeable section if you want to go straight headers or straight pipes in the future or at the track. I drove it to the shop last night without that section. It sounded like a dirt track car on a Sat. night hot lap session. You get two really nice back fires when you shift from 1st to 2nd and then again 2nd-3rd. Sorry if you live between my house the exhaust shop. Good luck.

Last edited by brandtdavis; Jun 27, 2006 at 10:47 AM.
Reply
Old Jun 27, 2006 | 10:50 AM
  #6  
brandtdavis's Avatar
brandtdavis
Burning Brakes
15 Year Member
 
Joined: Apr 2005
Posts: 834
Likes: 0
From: Palm Beach Gardens FL
Default

anyone gut the stock cats?? I don't want to ruin them and not be able to go back. I was tempted to just smash a long crowbar through the cat material to free up some flow.
Reply
Old Jun 27, 2006 | 11:26 AM
  #7  
dwjz06's Avatar
dwjz06
Dogface
Supporting Lifetime
20 Year Member
Veteran: Army
Liked
Community Favorite
 
Joined: Jul 2004
Posts: 25,974
Likes: 120
From: At the Beach, FL
St. Jude Donor '15, '17
Default

Originally Posted by brandtdavis
anyone gut the stock cats?? I don't want to ruin them and not be able to go back. I was tempted to just smash a long crowbar through the cat material to free up some flow.
Don't bother for the 5-8 hp gain. You will get more noise and stink. keep the cats and remain emissions legal also. JMHO
Reply
Old Jun 27, 2006 | 11:35 AM
  #8  
simpleman68's Avatar
simpleman68
Le Mans Master
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jun 2004
Posts: 6,752
Likes: 3
From: Bethlehem PA
Default

Calling Lou is your best bet, but I'd recommend getting the LG X to go with your headers.
The problem down the road will be you have a "custom" X pipe that won't work with anything else.
You won't be able to sell it and if you want to swap out for an off road X or hi flow catted one, you're still stuck with a set up that is unique to itself and you'll have to pay again for another custom job.
Scott
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-1

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-2

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-3

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-4

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-5

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-6

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-7

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-8

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-9

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
Old Jun 27, 2006 | 11:55 AM
  #9  
brandtdavis's Avatar
brandtdavis
Burning Brakes
15 Year Member
 
Joined: Apr 2005
Posts: 834
Likes: 0
From: Palm Beach Gardens FL
Default

"...The problem down the road will be you have a "custom" X pipe that won't work with anything else.
You won't be able to sell it and if you want to swap out for an off road X or hi flow catted one, you're still stuck with a set up that is unique to itself and you'll have to pay again for another custom job."


The stock piece that I have slides directly into my Corsa X pipe. It is "custom" but it will easily mate up to all x pipes, and high flow cats if I decide to go that way in the future. I guess its a balance of cost and how long you want to keep your car taken apart in the garage. Pics soon and you will see what I mean.
Reply

Get notified of new replies

To LG Headers w/ Stock Pipes





All times are GMT -4. The time now is 12:49 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE