KillinKrullin

iTrader: (2)

Hey real quick guys/gals,

Just to make sure I can install a catless DP, with out tuning, all its going to do is run a code. it wont change my fuel mix will it?

i will be getting the sensor turned off sometime after that but dont know when.

thanks,
Bill

ShortStack

Well, it depends...

If the Cat Over temp protection is on... it messes with something... its either timing or AFR (obviously) but i cant remember which..

KillinKrullin

iTrader: (2)

what sensor detects that?

daythecountrydied21

mines catless on stock dp you just need to turn the p0420 code off because the back o2 will read the same as the front.
don't get catless. it sounds like pure ass. catted cti dp on the way .

G85 SS

I never got a code from catless...I've since deleted the rear O2 sensor and put in a wideband. Still good.

KillinKrullin

iTrader: (2)

this only half helps me, im already getting it and its 3inch. i am going to put a cut out in it. i dont think there is a space for the stock after cat O2 sensor just a wideband and the b4 cat narrow band

daythecountrydied21

um wideband bung should be close to the first 02 sensor..if youre getting a cutout whats the point of catless

ShortStack

the question should be what is the point of having a cat if your having a cutout? Why spend the extra hundred bucks if you dont need to.. since its not even making it out the muffler anyway?

daythecountrydied21

A cutout isn't open all the time....

ShortStack

Lol.. i sure hope not .

But i mean.. if your not worried about dumping it off to the side of your car... your probably not worried about spending 100 bucks on a cat.. lol

KillinKrullin

iTrader: (2)

the only reason in my eyes for a cat is for E-Check. and im keeping my stock exhaust for that reason.... i bought my car new so i have a good handful of years b4 that happens.

also it is a bit difucult to install a cut out properly with a cat in the way

daythecountrydied21

I'm just saying without a cat it's gonna sound like pure rice but to each their own.
Personally I can't stand to get on it till my new DP comes in lol..

InfraRedline

iTrader: (4)

Im catless and have no resonator, BUT I have a really REALLY quiet muffler on the car so it sounds nice and quiet. When I open the cutout its another story lol. But I love how it sounds at WOT with the cutout open

silverbullet08

i went catless it sounds bad ass i actually felt a little difference. it will lower your boost and the check engine light will come on. my idle was a little fu**ed up it idled rough. i just got tuned for it last night and it fixed it

MarqueDo7BabyBalt

**** i love my catless dp and hahn exhaust...its amazing...but yea it does lean it out a bit...but not too much..u got a wb?..

KillinKrullin

iTrader: (2)

yes i have a wideband. what kind of silly individual runs meth injection without a wideband?

thc

iTrader: (1)

hey killin howd you do on friday? diddnt get to see your 2nd pass.

KillinKrullin

iTrader: (2)

no improvement, i bogged it and then waited for the ramp up of boost to hit.... sooo slow. i think im gonna get it changed to like start at 50% and ramp to 80%ish.

what does your first gear boost look like?

07MetallicSC

iTrader: (16)

Ive had a catless since the 2nd week of owning the car, it doesnt sound like ass. And people need to get past the word RICE. this isnt 2005 anymore.

thc

iTrader: (1)

right now its set at 70% till 4750rpm then its 100% all the way up.

KillinKrullin

iTrader: (2)

yeah see, when i get mine to hook its like waiting for my VTACK to switch over + turbo to spool.

daythecountrydied21

i have mine set for 50 in the first cell up to 100 by the last. works like a charm and never break out the tires. perfect mix of boost and traction lmao.

KillinKrullin

iTrader: (2)

it just sucks that i ran better stock 2 passes and driver fail

Hotpants08

i have an xtc 2.5" catless downpipe for sale for $150 shipped. its only had around 200 miles on it. PM me if you are interested