GT Performance Mods 2005+ Mustang GT Performance and Technical Information

Cats to catless

Thread Tools
 
Search this Thread
 
Old 5/8/11, 02:45 PM
  #1  
V6 Member
Thread Starter
 
Jmeo's Avatar
 
Join Date: February 18, 2011
Location: Plainville, MA
Posts: 94
Likes: 0
Received 0 Likes on 0 Posts
Cats to catless

Hi guys & girls, I have an 05 Whippled GT with Kooks LT headers and Catted H pipe. I want to switch to and off-road H pipe and was wondering if there is any reason I can't just switch out the H pipes. In other words, will I "need" a re-tune? I understand to benefit from a catless h pipe I will need a tune but will running a catless pipe with a tune for cats be a problem for a few months till I can afford a re-tune?
Old 5/8/11, 05:33 PM
  #2  
Cobra R Member
 
DynamicmustangGT's Avatar
 
Join Date: January 12, 2007
Posts: 1,875
Likes: 0
Received 0 Likes on 0 Posts
Your car will trip codes if you remove the cats. Get a re tune and add a little extra power.
Old 5/8/11, 06:13 PM
  #3  
bob
Legacy TMS Member
 
bob's Avatar
 
Join Date: May 16, 2004
Location: Bristol, TN
Posts: 5,197
Received 16 Likes on 11 Posts
If your tuner has the capability, you can turn off the secondary 02 sensors and avoid the MIL. Also how much does your tuner charge to email you a tune (unless your going to a local tuner)

Last edited by bob; 5/8/11 at 06:15 PM.
Old 5/8/11, 06:13 PM
  #4  
Cobra R Member
 
fdjizm's Avatar
 
Join Date: June 6, 2008
Posts: 1,666
Likes: 0
Received 2 Likes on 2 Posts
Being FI, you will be removing a restriction and you should re-tune, FI is very sensitive to flow you.
Old 5/8/11, 06:18 PM
  #5  
V6 Member
Thread Starter
 
Jmeo's Avatar
 
Join Date: February 18, 2011
Location: Plainville, MA
Posts: 94
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by DynamicmustangGT
Your car will trip codes if you remove the cats. Get a re tune and add a little extra power.
I have a tune now with the rear 02's off due to code P0430 so this is not an issue. I was wondering in the sense of how the car will run with the cats being removed.
Old 5/8/11, 06:20 PM
  #6  
V6 Member
Thread Starter
 
Jmeo's Avatar
 
Join Date: February 18, 2011
Location: Plainville, MA
Posts: 94
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by bob
If your tuner has the capability, you can turn off the secondary 02 sensors and avoid the MIL. Also how much does your tuner charge to email you a tune (unless your going to a local tuner)
I use a local tuner guy. He's great but it's probably $200 for another tune and I was hoping to skate by for a bit. My rear 02's are off in my current tune so codes won't be an issue.
Old 5/8/11, 10:01 PM
  #7  
Mach 1 Member
 
5pointoh's Avatar
 
Join Date: February 24, 2010
Location: Surrey BC, Canada
Posts: 576
Likes: 0
Received 0 Likes on 0 Posts
Where did you buy your Whipple from? What type of tuner do you have and where was this purchased?

Depending on the vendor maybe you can get a new tune emailed to you?

I think most people know that American Muscle, Brenspeed and JDM do lots of email tunes......so if you bought any of the above from these vendors.....perhaps they can do something for you.
Old 5/8/11, 11:12 PM
  #8  
V6 Member
Thread Starter
 
Jmeo's Avatar
 
Join Date: February 18, 2011
Location: Plainville, MA
Posts: 94
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by 5pointoh
Where did you buy your Whipple from? What type of tuner do you have and where was this purchased?

Depending on the vendor maybe you can get a new tune emailed to you?

I think most people know that American Muscle, Brenspeed and JDM do lots of email tunes......so if you bought any of the above from these vendors.....perhaps they can do something for you.
I got the tune and Whipple from lethal performance. The tune I got was not perfect, the idle was wrong. Took it to a very well known tuner for a dyno tune. Guess I'll just bite the bullet and dyno it again.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Antigini-GT/CS
2005-2009 Mustang
5
10/5/15 09:43 AM
FromZto5
2010-2014 Mustang
61
9/30/15 05:28 AM
tj@steeda
2015 - 2023 MUSTANG
0
9/24/15 08:15 PM
Bryanh24
5.0L GT Modifications
5
9/16/15 08:31 PM



Quick Reply: Cats to catless



All times are GMT -6. The time now is 05:30 AM.