Silverado, Sierra & Fullsize Pick-ups The Silverado & Sierra have been two of the best selling trucks in the US for decades, and is truly proven to be "like a rock".

2014 Chevy Silverado
Platform: Truck, GMT 400, 800, & 900

95 5.7 "Cat" removal

Thread Tools
 
Search this Thread
 
Old Jul 26, 2012 | 8:42 PM
  #1  
ncsouthpaw's Avatar
Thread Starter
CF Junior Member
10 Year Member
 
Joined: Sep 2011
Posts: 37
Likes: 1
From: Raleigh, NC
Default 95 5.7 "Cat" removal

I have a 95 Silverado with a 5.7 engine, what effect will it have on the running if the Cat is removed. Anything else need to be done to keep the truck running smoth.

Thanks for any advise Ronnie
Reply
Old Jul 27, 2012 | 6:27 AM
  #2  
shamrock246's Avatar
CF Senior Member
 
Joined: Feb 2011
Posts: 345
Likes: 0
From: Middletown DE
Default

Not sure you would gain anything unless it was clogged
Reply
Old Jul 27, 2012 | 7:16 AM
  #3  
ncsouthpaw's Avatar
Thread Starter
CF Junior Member
10 Year Member
 
Joined: Sep 2011
Posts: 37
Likes: 1
From: Raleigh, NC
Default

It's not clogged but it rattles like the material inside is loose.
Reply
Old Jul 28, 2012 | 12:41 AM
  #4  
66nova's Avatar
CF Beginner
 
Joined: Jul 2012
Posts: 5
Likes: 0
Default

It will be louder and that is about it. I ran my 95 without a cat for quite a while then stuck one back on it once I moved to Texas and had to get it inspected. I actually think I got better mileage with it on. I did install a Magnaflow cat from Jegs because it was a ton cheaper than a stock replacement.
Reply
Old Jul 28, 2012 | 8:15 AM
  #5  
shamrock246's Avatar
CF Senior Member
 
Joined: Feb 2011
Posts: 345
Likes: 0
From: Middletown DE
Default

I would replace it before all that crap ends up clogging the muffler it happened to my 83 chevy wagon,how is the 95 setup single in and out?i would check out JEGS also maybe one of the universal types would work
Reply
Old Jul 28, 2012 | 8:48 PM
  #6  
ncsouthpaw's Avatar
Thread Starter
CF Junior Member
10 Year Member
 
Joined: Sep 2011
Posts: 37
Likes: 1
From: Raleigh, NC
Default

Yes it is a single in and out.
Reply
Old Aug 2, 2012 | 12:55 AM
  #7  
Doug Roberts's Avatar
CF Senior Member
 
Joined: Feb 2012
Posts: 330
Likes: 2
Default

I have a 99 with a 5.3 and was told pb will kill values i want my cat gone
Reply
Old Aug 3, 2012 | 3:20 AM
  #8  
Mudd Mutt's Avatar
CF Junior Member
 
Joined: Jun 2012
Posts: 57
Likes: 0
From: Kansas
Default

Taking the cat off will burn up your valves to where your engine will have no compression and no power. You have to have some back pressure. If you have a muffler your fine but without anything it all you'll be buying a new engine in a year
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
damone
Silverado, Sierra & Fullsize Pick-ups
9
May 8, 2021 12:36 PM
Platinum
Tracker
4
Jan 16, 2019 9:53 PM
ericnottelin
Silverado, Sierra & Fullsize Pick-ups
4
Jul 2, 2012 10:03 PM
chevyman323
OLD - PRIVATE For Sale / Trade Classifieds
2
Jul 16, 2010 11:56 AM
mike688
Uplander
3
Jan 25, 2010 12:16 PM




All times are GMT -5. The time now is 2:28 AM.