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:

C5 Header Install Question???

Thread Tools
 
Search this Thread
 
Old Aug 12, 2012 | 11:31 AM
  #1  
Leeman1's Avatar
Leeman1
Thread Starter
Racer
10 Year Member
 
Joined: Jun 2012
Posts: 283
Likes: 9
From: Thibodaux Louisiana
Default C5 Header Install Question???

Just trying to figure out a game plan before I get rolling with the bold-on's. I have a 98 C5 Auto. Just bought a LS6 intake, vararam, underdrive pully, and a set of long tube headers off cf. When i install the headers (unsure of namebrand?) I plan on removing the cats and getting tuned. My question is, will an exhaust shop be able to tie in my long tubes to the factory exhaust after removing the cats, or do i have to have a off road x-pipe? Has anyone installed a set of long tubes without a x-pipe?

Here is the link to see a pic of the headers i bought.

http://forums.corvetteforum.com/c5-p...hrods-etc.html
Reply
Old Aug 12, 2012 | 12:46 PM
  #2  
NukeC5's Avatar
NukeC5
Melting Slicks
 
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
Default

Originally Posted by Leeman1
Just trying to figure out a game plan before I get rolling with the bold-on's. I have a 98 C5 Auto. Just bought a LS6 intake, vararam, underdrive pully, and a set of long tube headers off cf. When i install the headers (unsure of namebrand?) I plan on removing the cats and getting tuned. My question is, will an exhaust shop be able to tie in my long tubes to the factory exhaust after removing the cats, or do i have to have a off road x-pipe? Has anyone installed a set of long tubes without a x-pipe?

Here is the link to see a pic of the headers i bought.

http://forums.corvetteforum.com/c5-p...hrods-etc.html
The factory exhaust is 2.5". How big is the collector diameter? They may have to tie it in with some kind of reducer. Most long tubes will reach past the cats, so it should fit fine. Just needs welded in.
Reply
Old Aug 12, 2012 | 03:41 PM
  #3  
kp1's Avatar
kp1
Racer
20 Year Member
All Eyes On Me
 
Joined: Aug 2005
Posts: 465
Likes: 16
Default

No exhaust shops in my area will touch the car if it does not have the cats in place.
Reply
Old Aug 12, 2012 | 05:52 PM
  #4  
Leeman1's Avatar
Leeman1
Thread Starter
Racer
10 Year Member
 
Joined: Jun 2012
Posts: 283
Likes: 9
From: Thibodaux Louisiana
Default

I wont have any problems deleating the cats here in Louisiana. Just need to know if it is possible to do it without x-pipe?
Reply
Old Aug 12, 2012 | 09:23 PM
  #5  
corv1998's Avatar
corv1998
Instructor
10 Year Member
 
Joined: Jan 2012
Posts: 204
Likes: 35
From: buffalo new york
Default

You just need to find a steel fabrication shop in your area that can tig weld . It is a simple weld to make if you take the x-pipe out of car. Just need some tubing to fill the space in that the cats took up. Muffler shops generally do sloppy work with a automatic mig weld , unless it is a performance shop.
Reply

Get notified of new replies

To C5 Header Install Question???





All times are GMT -4. The time now is 06:36 PM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE