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:

Anyone running these High Flow Cats??

Thread Tools
 
Search this Thread
 
Old May 9, 2007 | 09:00 PM
  #1  
Corvette Don's Avatar
Corvette Don
Thread Starter
Le Mans Master
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Default Anyone running these High Flow Cats??

http://www.pysales.com/iwwida.pvx?;i...0%201?comp=ppe, I am thinking about getting them has anyone used these or has used them? Are they any good?
Reply
Old May 10, 2007 | 01:29 AM
  #2  
Corvette Don's Avatar
Corvette Don
Thread Starter
Le Mans Master
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Default

Ttt
Reply
Old May 10, 2007 | 06:22 AM
  #3  
trussme's Avatar
trussme
Burning Brakes
 
Joined: Jan 2006
Posts: 1,170
Likes: 27
From: Magnolia Greens NC
Default HiFlo Cats

Originally Posted by Corvette Don
http://www.pysales.com/iwwida.pvx?;i...0%201?comp=ppe, I am thinking about getting them has anyone used these or has used them? Are they any good?
Yes & Yes...but, be ready to tune-out or install simulators for the rear 02's....as you will most likely throw 02 codes resulting in a Check Engine Light, due to this increased exhaust flow.
Reply
Old May 10, 2007 | 06:59 AM
  #4  
Corvette Don's Avatar
Corvette Don
Thread Starter
Le Mans Master
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Default

Originally Posted by trussme
Yes & Yes...but, be ready to tune-out or install simulators for the rear 02's....as you will most likely throw 02 codes resulting in a Check Engine Light, due to this increased exhaust flow.
Got a programmer for it anyone else got em??
Reply
Old May 10, 2007 | 01:48 PM
  #5  
AVB's Avatar
AVB
Safety Car
20 Year Member
 
Joined: Apr 2004
Posts: 3,932
Likes: 8
From: Hayward California
Default

What internals, Ceramic or MetalMatrix?
Reply
Old May 10, 2007 | 03:54 PM
  #6  
tblu92's Avatar
tblu92
Le Mans Master
20 Year Member
Conversation Starter
 
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Default

Was tempted to buy these but ended up with the Thundebolt Hi-flow metal cats from E B-Y--about the same price and design work very well but makes it quite louder--I don't mind though--
Reply
Old May 10, 2007 | 04:28 PM
  #7  
Corvette Don's Avatar
Corvette Don
Thread Starter
Le Mans Master
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Default

Originally Posted by AVB
What internals, Ceramic or MetalMatrix?
Not sure but I dont think would think they would be the cheaper of the 2. Whats the difference, more flow??
Reply
Old May 10, 2007 | 06:23 PM
  #8  
tblu92's Avatar
tblu92
Le Mans Master
20 Year Member
Conversation Starter
 
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Default

Originally Posted by Corvette Don
Not sure but I dont think would think they would be the cheaper of the 2. Whats the difference, more flow??
The ceramic 2 1/2 " cats are $36.99 each & the metal 2 1/2" cats are $55.00 ea.--they are both the bullet type and case is made in stainless steel---3" price is the same---- site is http://performance-curve.com

Last edited by tblu92; May 10, 2007 at 06:30 PM.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

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

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

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

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old May 10, 2007 | 08:02 PM
  #9  
Corvette Don's Avatar
Corvette Don
Thread Starter
Le Mans Master
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Default

Originally Posted by tblu92
The ceramic 2 1/2 " cats are $36.99 each & the metal 2 1/2" cats are $55.00 ea.--they are both the bullet type and case is made in stainless steel---3" price is the same---- site is http://performance-curve.com
Whats the difference between the 2 types, more flow?? Which is better? Also what the part number/link to the ones for the 3" inlet and outlet WITH rear o2 bung welded into it??? Thanks

Last edited by Corvette Don; May 10, 2007 at 08:11 PM.
Reply
Old May 10, 2007 | 08:36 PM
  #10  
AVB's Avatar
AVB
Safety Car
20 Year Member
 
Joined: Apr 2004
Posts: 3,932
Likes: 8
From: Hayward California
Default

Originally Posted by Corvette Don
Whats the difference between the 2 types, more flow?? Which is better? Also what the part number/link to the ones for the 3" inlet and outlet WITH rear o2 bung welded into it??? Thanks
Metal Matrix is less likely to get blown out with a supercharger or melted by turbo's.
Reply
Old May 11, 2007 | 03:49 AM
  #11  
Corvette Don's Avatar
Corvette Don
Thread Starter
Le Mans Master
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Default

Originally Posted by AVB
Metal Matrix is less likely to get blown out with a supercharger or melted by turbo's.
So will I be ok with the cermaic ones??
Reply
Old May 11, 2007 | 11:32 AM
  #12  
AVB's Avatar
AVB
Safety Car
20 Year Member
 
Joined: Apr 2004
Posts: 3,932
Likes: 8
From: Hayward California
Default

Originally Posted by Corvette Don
So will I be ok with the cermaic ones??
Do a search on cats disintegrating... If it weren't for this happening on completely stock setups, maybe. For the price difference, if I were you, I'd do metal.

Arnel
Reply
Old May 11, 2007 | 04:42 PM
  #13  
Corvette Don's Avatar
Corvette Don
Thread Starter
Le Mans Master
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Default

Originally Posted by AVB
Do a search on cats disintegrating... If it weren't for this happening on completely stock setups, maybe. For the price difference, if I were you, I'd do metal.

Arnel
Hmm, nothing really came up...
Reply
Old May 11, 2007 | 06:19 PM
  #14  
tblu92's Avatar
tblu92
Le Mans Master
20 Year Member
Conversation Starter
 
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Default

Metal cats are supposed to heat up quicker-so they can be smaller in size that is why they flow better --On my metal cats the body is about 11" long but the actual metal honycomb material inside is only about 3" thick

The metal cats don't come with an 02 bung--just ceramic
that part # for 3" is 425300

The # for the metal 3" is 415300

go to their website and type in the # in the search box

http://performance-curve.com
Reply
Old May 11, 2007 | 06:45 PM
  #15  
Corvette Don's Avatar
Corvette Don
Thread Starter
Le Mans Master
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Default

Originally Posted by tblu92
Metal cats are supposed to heat up quicker-so they can be smaller in size that is why they flow better --On my metal cats the body is about 11" long but the actual metal honycomb material inside is only about 3" thick

The metal cats don't come with an 02 bung--just ceramic
that part # for 3" is 425300

The # for the metal 3" is 415300

go to their website and type in the # in the search box

http://performance-curve.com
So the METAL cats DO flow better than the cermaic right? What do you reccomend? I dont plan or supercharging it but do planon heads and a cam down the road...

Last edited by Corvette Don; May 11, 2007 at 07:49 PM.
Reply
Old May 11, 2007 | 08:22 PM
  #16  
tblu92's Avatar
tblu92
Le Mans Master
20 Year Member
Conversation Starter
 
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Default

Metal is better--would rec. those---the others will work but won't last as long--they have the 02 bung you were looking for--but if that isn't a big deal--then get the metal ones then
Reply
Old May 11, 2007 | 09:18 PM
  #17  
Corvette Don's Avatar
Corvette Don
Thread Starter
Le Mans Master
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Default

Originally Posted by tblu92
Metal is better--would rec. those---the others will work but won't last as long--they have the 02 bung you were looking for--but if that isn't a big deal--then get the metal ones then
Cool, metal ones it is then, I will have my local welder weld in the bungs for me
Reply
Old Nov 29, 2007 | 10:59 AM
  #18  
TheRadioFlyer97's Avatar
0TheRadioFlyer97
Former Vendor
 
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
Default

bringing this thread back to life, because I'm wanting to replace my stock cats. (110miles on them) I don't have the $$$ for headers at the moment. I have a 97 coupe and I can't remember what size I'll need. Is mine a 2.5" or should I go 3"?

Those who've had them installed, how much did the metal versions cost to throw on?
Reply

Get notified of new replies

To Anyone running these High Flow Cats??





All times are GMT -4. The time now is 09:08 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
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-9
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