C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Corsa

Thread Tools
 
Search this Thread
 
Old May 30, 2007 | 01:07 PM
  #1  
JohnyH's Avatar
JohnyH
Thread Starter
Burning Brakes
20 Year Member
 
Joined: Feb 2004
Posts: 1,085
Likes: 7
From: Kanata ON.
Default Corsa

I picked up my Corsa cat back system yesterday, I was looking over the clamps that come with it and wondering if it would be advisable to use some sort of muffler cement when clamping them on? Or does someone have any other useful advise?

Thanks, John
Reply
Old May 30, 2007 | 01:28 PM
  #2  
polo91cnvt's Avatar
polo91cnvt
Instructor
Supporting Lifetime
 
Joined: Apr 2005
Posts: 141
Likes: 0
From: Downers Grove IL
Default

I installed the Corsa cat back on my 91 last fall, and it works great. Used the clamps provided and followed the instructions and torqued the clamps before running and after. I have heard that if there is a problem the best way is to have the unit spotwelded. But I would go with the just the clamps until a problem exists.

Good Luck, Polo
Reply
Old May 30, 2007 | 02:11 PM
  #3  
msslp04's Avatar
msslp04
Safety Car
Supporting Lifetime
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: May 2005
Posts: 3,682
Likes: 1
From: Scappoose Oregon
St. Jude Donor '11,'14
Default

Originally Posted by polo91cnvt
I installed the Corsa cat back on my 91 last fall, and it works great. Used the clamps provided and followed the instructions and torqued the clamps before running and after. I have heard that if there is a problem the best way is to have the unit spotwelded. But I would go with the just the clamps until a problem exists.

Good Luck, Polo

Put mine on last week and no problems. Easy to install too.

Kevin
Reply
Old May 30, 2007 | 02:22 PM
  #4  
jwt1603's Avatar
jwt1603
Melting Slicks
Supporting Lifetime Gold
Conversation Starter
Liked
Loved
Community Favorite
 
Joined: Mar 2005
Posts: 2,342
Likes: 223
From: Northeast FL
Default

Originally Posted by polo91cnvt
I installed the Corsa cat back on my 91 last fall, and it works great. Used the clamps provided and followed the instructions and torqued the clamps before running and after. I have heard that if there is a problem the best way is to have the unit spotwelded. But I would go with the just the clamps until a problem exists.

Good Luck, Polo
I've had the Corsa on for two years now. All I ever did was tighten it up a little after it went through a couple of heat cycles. I've taken it off several times for various reasons and have never had a leak problem. If you use the cement it will be harder to take off and put back on without creating some leaks.
Reply
Old May 30, 2007 | 02:55 PM
  #5  
dchildress's Avatar
dchildress
Pro
10 Year Member
 
Joined: Mar 2005
Posts: 666
Likes: 0
From: Walton KY
Default

Originally Posted by jwt1603
I've had the Corsa on for two years now. All I ever did was tighten it up a little after it went through a couple of heat cycles. I've taken it off several times for various reasons and have never had a leak problem. If you use the cement it will be harder to take off and put back on without creating some leaks.
Reply
Old May 30, 2007 | 04:37 PM
  #6  
wayne lowry's Avatar
wayne lowry
Melting Slicks
 
Joined: Feb 2006
Posts: 2,240
Likes: 0
From: Cleveland OHIO
Default

Originally Posted by JohnyH
I picked up my Corsa cat back system yesterday, I was looking over the clamps that come with it and wondering if it would be advisable to use some sort of muffler cement when clamping them on? Or does someone have any other useful advise?

Thanks, John
no muffler cement, if it leaks you can buy wider flatband clamps but it should not leak. They sell a quality product and for the money it should be.
Reply
Old May 30, 2007 | 04:46 PM
  #7  
Strick's Avatar
Strick
Race Director
20 Year Member
Liked
Loved
 
Joined: Feb 2003
Posts: 11,671
Likes: 20
From: Lake Wylie SC
Default

B&B has the same clamps and they just didn't do the job for me. I had a guy that is great with S/S welding spot weld it while it was on the Vette, aligned perfectly, and then I removed the whole system and finished the welding of all the unions, just like the OEM cat back. Makes taking it off easier and it looks better than the clamps.
Reply
Old May 30, 2007 | 06:35 PM
  #8  
JohnyH's Avatar
JohnyH
Thread Starter
Burning Brakes
20 Year Member
 
Joined: Feb 2004
Posts: 1,085
Likes: 7
From: Kanata ON.
Default

Thanks for all the replies, is there a gasket between the back of the Catalytic convertor and the first pipe going back?

John
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-1

2027 Corvette vs The World: Every Model vs Closest Competitor

 Joe Kucinski
story-2

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-3

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-4

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-5

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-6

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-7

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
story-8

Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

 Michael S. Palmer
story-9

5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

 Joe Kucinski
Old May 31, 2007 | 11:00 AM
  #9  
GKK's Avatar
GKK
Safety Car
15 Year Member
 
Joined: Jan 2004
Posts: 3,783
Likes: 15
From: Northern California
Default

There's no gasket on the outlet of the catalytic converter, the connection is a ball and flange type.

Also, I noticed slight exhaust leaks where the clamps are when I installed the Corsa's on my "91" L98. I sprayed windex around each clamp and saw the leaks.

I also, wanted a cleaner look so, I had a muffler shop remove the clamps and weld each joint. looks a lot cleaner now.
Reply
Old May 31, 2007 | 12:13 PM
  #10  
JohnyH's Avatar
JohnyH
Thread Starter
Burning Brakes
20 Year Member
 
Joined: Feb 2004
Posts: 1,085
Likes: 7
From: Kanata ON.
Default

Thanks for the reply, I'm hoping for no leaks but if it needs welding it will get welding!
Reply
Old May 31, 2007 | 02:54 PM
  #11  
Strick's Avatar
Strick
Race Director
20 Year Member
Liked
Loved
 
Joined: Feb 2003
Posts: 11,671
Likes: 20
From: Lake Wylie SC
Default

Originally Posted by JohnyH
Thanks for the reply, I'm hoping for no leaks but if it needs welding it will get welding!
Just make sure they use S/S rod or you'll have a rust prone joint.
Reply
Old May 31, 2007 | 07:57 PM
  #12  
VenkmanP's Avatar
VenkmanP
Safety Car
20 Year Member
Liked
 
Joined: Apr 2003
Posts: 3,793
Likes: 9
From: VA
Default

Originally Posted by JohnyH
I picked up my Corsa cat back system yesterday, I was looking over the clamps that come with it and wondering if it would be advisable to use some sort of muffler cement when clamping them on? Or does someone have any other useful advise?
I've had the Corsa on mine for 3.5 years, and it always loosens up and gets louder after a while. Have redone the clamps several times, and had the entire system off once.

The next time I take it off I will use some kind of sealer on all the joints. Was thinking to use high-temp RTV.
Reply
Old May 31, 2007 | 08:58 PM
  #13  
JohnyH's Avatar
JohnyH
Thread Starter
Burning Brakes
20 Year Member
 
Joined: Feb 2004
Posts: 1,085
Likes: 7
From: Kanata ON.
Default

It took a couple of hours, mind you I have air tools and the car sits on a four post hoist. Does it sound sweet and looks even better! I was quite surprised that the old exhaust, 19 years on, came off as easy as it did! No leaks and I'll retorque the clamps after it has cooled off. Now it's time for a high flow cat!!!!!!!!!
Reply

Get notified of new replies

To Corsa





All times are GMT -4. The time now is 02:53 PM.

story-0
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-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
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
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE