Catted.....Stupid to go Catless? (Yes, asked again)

Ok, I know this subject has been beat around but I want to ask again. Just when I am convinced one way, I read a post that sways me back a bit. I currently have Unequal length headers, catless UP, catted Invidia DP, Borla CBE. Oh, and it is an '05 LGT MT. I can't help but want to install a Catless DP. Yes, I have already forked the cash out for a Catted DP but I am getting ready to get the car tuned and I want to make sure most everything is on the car that I want so I don't need to pay for more tuning later (which will probably happen anyway). Much appreciated to all who will amuse me.

My $.02 says keep the DP you already have. If you're not pushing 325+HP, keep the cat. Especially if you live in a strict emissions state or county. Going catless can also possibly lead to fuel odors when idling and boost creep issues. You're leaving <5HP on the table at your mod level.

keep the cat. you arent at a level where the cat makes a huge difference.

Keep what ya got and get a bigger TMIC or a FMIC before your tune

Keep what ya got and get a bigger TMIC or a FMIC before your tune

 

That is actually what I want to do. Funds control that though. Everytime I see a GB for the itsme fmic I get excited...until I check the bank account. I guess instead of wasting money buying another DP I could save it to get the FMIC. I am like a d*mn woman when it comes to car parts. Can't decide what I want and when I do decide what I want, I change my mind the next day.

I am like a d*mn woman when it comes to car parts. Can't decide what I want and when I do decide what I want, I change my mind the next day.

Don't feel bad, I'm the same way with wheels. One day I want RPF1's, the next I'm thinking Rotas are only a little heavier and a lot less $$$.:lol:Save the cash for a used Perrin or AVO in the classifieds.

do you need a remap with a catted DP? i know you will with a catless but with s sports cat pipe, can you safely fit it without retune? I know you get more gains with proper retune, but will probably be a few weeks between fitting and tune for me and dont want to be getting boost spikes, killing my turbo!

do you need a remap with a catted DP? i know you will with a catless but with s sports cat pipe, can you safely fit it without retune? I know you get more gains with proper retune, but will probably be a few weeks between fitting and tune for me and dont want to be getting boost spikes, killing my turbo!

 

 

I'm no expert but I would say it is highly recommended to get a tune. With most high flow cats the odds are high you are going to throw a CEL. I installed my Cobb right after bolting up my DP so I can't give you a first hand account.

do you need a remap with a catted DP? i know you will with a catless but with s sports cat pipe, can you safely fit it without retune? I know you get more gains with proper retune, but will probably be a few weeks between fitting and tune for me and dont want to be getting boost spikes, killing my turbo!

Have your tune ready and with you when the downpipe goes on.

I ran a catless uppie and tbe with no engine management, there I said it, never had boost creep issues except for the first day when the ecu was learning..I did use a mechanical cel fix..