C8 Tech/Performance Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by: CARiD

2m fabrication

Thread Tools
 
Search this Thread
 
Old Mar 18, 2022 | 08:09 PM
  #161  
MarioC8's Avatar
MarioC8
Pro
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2021
Posts: 649
Likes: 576
From: South Florida
Default

Installing 2M Sport Cats with their heat blankets this upcoming Wednesday! Can’t wait!!
Reply
Old Mar 18, 2022 | 08:27 PM
  #162  
Irpilot's Avatar
Irpilot
Racer
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: May 2021
Posts: 289
Likes: 214
From: Houston TX
Default

Originally Posted by MarioC8
Installing 2M Sport Cats with their heat blankets this upcoming Wednesday! Can’t wait!!
Awesome! Are you replacing all the gaskets? Please update when you get it done.
Reply
Old Mar 19, 2022 | 01:32 PM
  #163  
Irpilot's Avatar
Irpilot
Racer
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: May 2021
Posts: 289
Likes: 214
From: Houston TX
Default

Cats and blankets and replacement gaskets ordered. I'm excited. Will post pics of the install. Also ordered replacement exhaust tips. Will try to do both at the same time.
Reply
Old Mar 19, 2022 | 10:40 PM
  #164  
MikeinAZ's Avatar
MikeinAZ
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2011
Posts: 833
Likes: 470
From: Goodyear AZ
Default

I have had my 2m cats on for about 8 months now and 6k miles and love them, no cel and the sound is amazing. I used Kooks heat blankets, they fit 95% correctly and found them on sale for cheap. Just thought I'd throw my two cents in.
Reply
Old Mar 23, 2022 | 01:28 PM
  #165  
Greg G's Avatar
Greg G
Burning Brakes
20 Year Member
Conversation Starter
All Eyes On Me
Top Answer: 1
 
Joined: Oct 2004
Posts: 754
Likes: 37
From: Connelly Springs NC
Default

Originally Posted by MikeinAZ
I have had my 2m cats on for about 8 months now and 6k miles and love them, no cel and the sound is amazing. I used Kooks heat blankets, they fit 95% correctly and found them on sale for cheap. Just thought I'd throw my two cents in.
Does the exhaust have an un-burnt gas smell?
Reply
Old Mar 23, 2022 | 01:43 PM
  #166  
MikeinAZ's Avatar
MikeinAZ
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2011
Posts: 833
Likes: 470
From: Goodyear AZ
Default

Originally Posted by Greg G
Does the exhaust have an un-burnt gas smell?
not at all, I had that on my c7 with its titanium Akropovic and high flow cats but not on the c8.
Reply
Old Mar 23, 2022 | 01:57 PM
  #167  
Irpilot's Avatar
Irpilot
Racer
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: May 2021
Posts: 289
Likes: 214
From: Houston TX
Default

Originally Posted by MikeinAZ
not at all, I had that on my c7 with its titanium Akropovic and high flow cats but not on the c8.
Did you reuse your old gaskets? I ordered replacement gaskets for my 2m cats but from cursory observation it doesn't look like they'll fit.
Reply
Old Mar 23, 2022 | 02:08 PM
  #168  
Irpilot's Avatar
Irpilot
Racer
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: May 2021
Posts: 289
Likes: 214
From: Houston TX
Default

Got my 2M fabrication sports cats in the mail today. Packaging sucked but the box did make it in one piece somehow so that's good. It looks like they've added a heat shield that's spot welded to the cat which was a nice surprise. Not entirely sure if the kevlar sleeves are needed anymore. Unfortunately if anyone was thinking of getting them ceramic coated you're out for luck. The nicest part of these cats is the sleeves to be honest. The welds are all pretty sloppy and the finish leaves alot to be desired. The flanges are not smooth like they are in the pics on their site. They did include the O2 extenders and all the hardware required. For less than half the price of the competition I'm pretty happy with the quality. Other than smoothness of the mating surfaces, and the extra heat shielding, everything quality wise matches up with the website pics. Hoping to pick up the car tomorrow where it will go to get ppf put on. Will try to install these next week but I have family visiting so that might be tough. I'll keep this thread updated as I go. My biggest issue might be that I ordered replacement gaskets that might not fit. The welds on corsa cat flanges are way nicer than these. I'll find out soon enough. Also, I've got tons of kevlar fibers on my hands now. Should of worn gloves. 😟









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 Mar 23, 2022 | 07:08 PM
  #169  
MarioC8's Avatar
MarioC8
Pro
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2021
Posts: 649
Likes: 576
From: South Florida
Default

Originally Posted by Irpilot
Awesome! Are you replacing all the gaskets? Please update when you get it done.
Yes I purchased the 4 gaskets from 2M during the purchase of the cats. I dropped off the car today and will be picking it up tomorrow evening… almost there!!
Reply
Old Mar 23, 2022 | 07:13 PM
  #170  
Irpilot's Avatar
Irpilot
Racer
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: May 2021
Posts: 289
Likes: 214
From: Houston TX
Default

Originally Posted by MarioC8
Yes I purchased the 4 gaskets from 2M during the purchase of the cats. I dropped off the car today and will be picking it up tomorrow evening… almost there!!
You wouldn't happen to have any pics of the gaskets?
Reply
Old Mar 23, 2022 | 07:48 PM
  #171  
SECLT22021's Avatar
SECLT22021
Pro
 
Joined: Oct 2020
Posts: 697
Likes: 446
From: Wylie TX
Default

Looks like pretty decent heat shielding for free. Wonder how that is attached though?
Reply
Old Mar 23, 2022 | 08:08 PM
  #172  
Irpilot's Avatar
Irpilot
Racer
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: May 2021
Posts: 289
Likes: 214
From: Houston TX
Default

Originally Posted by SECLT22021
Looks like pretty decent heat shielding for free. Wonder how that is attached though?
​​​​​​
it looks like they had a bunch of spot welds all around. One of the welds was already loose out of the box probably from getting beat up during shipping though. They stuffed those things in a box that was way too small for them with no protection whatsoever.
Reply
Old Mar 23, 2022 | 08:30 PM
  #173  
MikeinAZ's Avatar
MikeinAZ
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2011
Posts: 833
Likes: 470
From: Goodyear AZ
Default

Originally Posted by Irpilot
​​​​​​
it looks like they had a bunch of spot welds all around. One of the welds was already loose out of the box probably from getting beat up during shipping though. They stuffed those things in a box that was way too small for them with no protection whatsoever.
Dont sweat it, one push of the start button and you will forget all of that. Put that baby in Z (or track) mode and listen to a symphony behind you! youre going to love the 'CRACKS'!
Reply
Old Mar 23, 2022 | 11:46 PM
  #174  
MarioC8's Avatar
MarioC8
Pro
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2021
Posts: 649
Likes: 576
From: South Florida
Default

Originally Posted by Irpilot
You wouldn't happen to have any pics of the gaskets?
I wish I did, sorry I don’t.
Reply
Old Mar 26, 2022 | 11:36 AM
  #175  
MarioC8's Avatar
MarioC8
Pro
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2021
Posts: 649
Likes: 576
From: South Florida
Default

Unfortunately had a CEL come on this morning after 100 miles with the Sport Cats. Got it checked and it’s P219B (Fuel Trim Cylinder Balance Bank 2) and P0157 (HO2S Circuit Low Voltage Bank 2 Sensor 2).

The cats were installed with the O2 Spacers, so a bit confused why this came up. Any thoughts?
Reply
Old Mar 26, 2022 | 11:39 AM
  #176  
Irpilot's Avatar
Irpilot
Racer
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: May 2021
Posts: 289
Likes: 214
From: Houston TX
Default

Originally Posted by MarioC8
Unfortunately had a CEL come on this morning after 100 miles with the Sport Cats. Got it checked and it’s P219B (Fuel Trim Cylinder Balance Bank 2) and P0157 (HO2S Circuit Low Voltage Bank 2 Sensor 2).

The cats were installed with the O2 Spacers, so a bit confused why this came up. Any thoughts?
Any damage to the O2 sensor wiring?
Reply
Old Mar 26, 2022 | 11:43 AM
  #177  
MarioC8's Avatar
MarioC8
Pro
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2021
Posts: 649
Likes: 576
From: South Florida
Default

Originally Posted by Irpilot
Any damage to the O2 sensor wiring?




Doesn’t look like it, but here are pictures of both sides just in case.
Reply

Get notified of new replies

To 2m fabrication

Old Mar 26, 2022 | 11:55 AM
  #178  
MarioC8's Avatar
MarioC8
Pro
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2021
Posts: 649
Likes: 576
From: South Florida
Default

Ticking noise from the engine while cruising is also now noticeably louder. Thinking it’s the injectors. Not sure if that’s normal after install.
Reply
Old Mar 26, 2022 | 11:57 AM
  #179  
Irpilot's Avatar
Irpilot
Racer
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: May 2021
Posts: 289
Likes: 214
From: Houston TX
Default

Originally Posted by MarioC8



Doesn’t look like it, but here are pictures of both sides just in case.
Your issue is with the right side o2 sensor that's plugged into the extender. Is plugged in fully on the harness side? Is in on tightly? The wire looks good. It's not getting the proper reading so you're getting the fault code. Pretty sure the trim fault code is because of the O2 sensor fault.
Reply
Old Mar 26, 2022 | 12:09 PM
  #180  
MarioC8's Avatar
MarioC8
Pro
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2021
Posts: 649
Likes: 576
From: South Florida
Default

Originally Posted by Irpilot
Your issue is with the right side o2 sensor that's plugged into the extender. Is plugged in fully on the harness side? Is in on tightly? The wire looks good. It's not getting the proper reading so you're getting the fault code. Pretty sure the trim fault code is because of the O2 sensor fault.
Right side as in passenger side right? I’ll unplug and plug it back in.
Reply



All times are GMT -4. The time now is 01:26 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