Any benefit to removing the kitty ?
11-18-2009, 06:44 PM
#1
Registered User
Thread Starter
Join Date: Jan 2009
Posts: 63
Likes: 0
Received 0 Likes
on
0 Posts
Any benefit to removing the kitty ?
I'm getting ready to put a MBRP muffler on and I have a cat delete pipe I was going to use also. I'm wondering if removing the kitty really does anything as far as performance. Anyone know how restrictive the kitty is and is it worth the hassle of messing with it ?
Trending Topics
11-19-2009, 09:47 AM
#8
Registered User
Thread Starter
Join Date: Jan 2009
Posts: 63
Likes: 0
Received 0 Likes
on
0 Posts
I wonder if anyone has done a dyno of before and after kitty removal ? I believe the kitty shouldn't be there but I'm not sure it's worth the hassle of taking it out then having to put it back in for emmision testing. If I could gain fuel economy by removing it then that would make more sense.
11-19-2009, 10:47 AM
#9
Registered User
Join Date: Aug 2006
Location: New Mexico
Posts: 3,113
Likes: 0
Received 0 Likes
on
0 Posts
I opted not to remove the kitty, straight piped the muffler. The kitty only amounts to a couple pounds of back pressure, not enough to really make much of a difference. My other reason for leaving the kitty goes to the EPA and DOT. If you happen to get pulled over in a DOT check, they see no kitty, the fine is horrendous. They will not give you a fix it ticket, they can red tag you, and your truck will not move until you either install the CAT or on a flatbed.
CD
CD
11-19-2009, 08:07 PM
#10
Registered User
Thread Starter
Join Date: Jan 2009
Posts: 63
Likes: 0
Received 0 Likes
on
0 Posts
I opted not to remove the kitty, straight piped the muffler. The kitty only amounts to a couple pounds of back pressure, not enough to really make much of a difference. My other reason for leaving the kitty goes to the EPA and DOT. If you happen to get pulled over in a DOT check, they see no kitty, the fine is horrendous. They will not give you a fix it ticket, they can red tag you, and your truck will not move until you either install the CAT or on a flatbed.
CD
CD
11-20-2009, 06:29 AM
#11
Registered User
Join Date: Feb 2009
Location: School in CT, live in GA
Posts: 116
Likes: 0
Received 1 Like
on
1 Post
I got about 2 mpg by removing the cat and the muffler. I got 4 inch pipe from a local steel distributer. I kept my GA registration, so I dont have to worry about emissions though.
11-20-2009, 07:45 AM
#13
Registered User
Join Date: Aug 2002
Location: Kerrville eastern new mexico, west texas
Posts: 3,308
Likes: 0
Received 1 Like
on
1 Post
I opted not to remove the kitty, straight piped the muffler. The kitty only amounts to a couple pounds of back pressure, not enough to really make much of a difference. My other reason for leaving the kitty goes to the EPA and DOT. If you happen to get pulled over in a DOT check, they see no kitty, the fine is horrendous. They will not give you a fix it ticket, they can red tag you, and your truck will not move until you either install the CAT or on a flatbed.
CD
CD
11-20-2009, 08:03 AM
#14
Registered User
Join Date: Jun 2005
Posts: 88
Likes: 0
Received 0 Likes
on
0 Posts
Your best bet is to delete the muffler, or run a performance muffler, and just keep the cat. Those claiming performance gains from ditching the cat are just trying to justify the choice they made. Too many problems for zero gain.
11-20-2009, 08:14 AM
#15
Registered User
Join Date: Aug 2002
Location: Kerrville eastern new mexico, west texas
Posts: 3,308
Likes: 0
Received 1 Like
on
1 Post
i have had no problems and can tell the difference. their is a lot of filtering material in it that seems to clog up. i would run a muffler before having the cat