Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Catalytic Converters Part Number

Thread Tools
 
Search this Thread
 
Old Feb 5, 2016 | 07:16 PM
  #1  
big_g's Avatar
Thread Starter
Launching!
10 Year Member
Photogenic
 
Joined: Jun 2012
Posts: 251
Likes: 4
Default Catalytic Converters Part Number

Can anyone tell me what part numbers I want for some new MagnaFlow Universal Catalytic Converters?

Maybe the real question is what is the best bang-for-the-buck to replace the stock cats on a stock car?

I've got a 2000 WS6 with stock exhaust besides the TSP Rumbler cat-back.

Last edited by big_g; Feb 5, 2016 at 07:56 PM.
Reply
Old Feb 6, 2016 | 09:07 AM
  #2  
NeverSummer's Avatar
Teching In
 
Joined: Jun 2015
Posts: 7
Likes: 0
From: NEWHAMPSHIRE
Default

only ones I can think of are the flowmaster ones http://www.flowmastermufflers.com/?page_id=13041 Part numbers 2010008 and 2010009
Reply
Old Feb 6, 2016 | 11:31 PM
  #3  
RevGTO's Avatar
Pontiacerator
20 Year Member
Photogenic
Liked
Loved
iTrader: (12)
 
Joined: Nov 2003
Posts: 6,216
Likes: 236
From: Wichita KS / Rancho San Diego
Default

As you can see from the link, you can't use universal fit with the stock manifolds and Y; you have to use direct fit. And they are expensive. You could get into some long tubes for what you're going to pay to replace the stock cats.
Reply
Old Feb 7, 2016 | 01:47 AM
  #4  
Project Bird's Avatar
Staging Lane
 
Joined: Aug 2015
Posts: 64
Likes: 0
From: Columbia, SC
Default

I've got almost brand new cats that I took off of my car. direct fit OEM replacement. PM me if interested.
Reply
Old Feb 7, 2016 | 11:08 PM
  #5  
big_g's Avatar
Thread Starter
Launching!
10 Year Member
Photogenic
 
Joined: Jun 2012
Posts: 251
Likes: 4
Default

Originally Posted by RevGTO
As you can see from the link, you can't use universal fit with the stock manifolds and Y; you have to use direct fit. And they are expensive. You could get into some long tubes for what you're going to pay to replace the stock cats.
Holy crap, no kidding! Almost $500 for some cats...
I'd love some long tubes, but I have to pass emissions. :-/ Or do you all just tune out the o2's? I'm sure there are a ton of threads on that already though, so I won't get into that here.
Reply
Old Feb 7, 2016 | 11:12 PM
  #6  
Mappinsj's Avatar
TECH Resident
 
Joined: Nov 2014
Posts: 812
Likes: 5
Default

Just get some universal cats and pay someone to weld them in. EBay cats
Reply
Old Feb 14, 2016 | 04:39 AM
  #7  
Project Bird's Avatar
Staging Lane
 
Joined: Aug 2015
Posts: 64
Likes: 0
From: Columbia, SC
Default

The part numbers for Magnaflow direct fit replacement cats are 51587, and 51788. I told you before I had cats for sale before but had no idea they were Magnaflow until I went to my storage building to look for a number on them. Only 3k miles on them PM if interested.
Reply




All times are GMT -5. The time now is 02:28 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE