Any downsides to decatting?

General Questions and comments

Moderators: IMC, Club Staff

Post Reply
User avatar
wildfaye
Grease Monkey
Posts: 316
jedwabna poszewka promocja
Joined: Fri Sep 12, 2003 5:00 pm

Any downsides to decatting?

Post by wildfaye »

Hi guys, have to get this of my chest...

does decatting have any downsides??

1) worst fuel consumption
2) strong petrol smell
3) pollution to environment

other then the obvious free-er flowing exhaust that will result in a 'quicker' car?

should i go decat? or hi flow cat?

Thanks in advance!
Sam
User avatar
Boris
Oldtimer
Posts: 1448
Joined: Tue Mar 02, 2004 6:00 pm

Re: Any downsides to decatting?

Post by Boris »

wildfaye wrote:Hi guys, have to get this of my chest...

does decatting have any downsides??

1) worst fuel consumption
2) strong petrol smell
3) pollution to environment

other then the obvious free-er flowing exhaust that will result in a 'quicker' car?

should i go decat? or hi flow cat?

Thanks in advance!
Sam
Ok, mines decatted :D (sounds funny)
Performance, I'm not quite sure as i got the car like this, same as petrol consumpion, not quite sure.

Petrol Smell... a little bit when cold. Pollution is self explanatory :idea:

Umm, drawbacks are lot's of carbon get's through so you muffler tip is always black on the inside, there is also legal issues, depending on the state.

But definatly more free flowing. My exhaust setup gives me I think much more top end, not much down low...

Also I get frequent backfires... but that's cos i got extractors, no cat 2.5" all the way... oh and one more thing you car will be louder and if your exhaust is really high flow... and it will become slightly raspy... mine atm is very race... I think anyway...

EDIT: This is what mine sounds btw
http://www.ftoaustralia.com/modules.php ... aust+sound

:wink:
User avatar
Slither
Mechanic
Posts: 707
Joined: Mon Feb 16, 2004 6:00 pm
Location: Out There Somewhere....

Post by Slither »

Apart from some serious emissions and helping to destroy the environment, it would give minimal gains i would believe. Unless your whole exhaust is really restrictive it wouldn't do a hell of a lot i wouldn't think
afterburner
Mechanic
Posts: 418
Joined: Tue Nov 16, 2004 6:00 pm
Location: Previously NZ, now Hertfordshire, England

Post by afterburner »

Its one of the first mods people do here if they are doing exhaust work, because on some cars it can make quite a difference. In NZ its perfectly normal and common because we have no emissions standards - disgraceful I know, but at least they are on the way sometime next year apparently.

Having said that, I still have mine and it's definitely staying...
[url=http://www.atom.net.nz/afterburner/fto/index.htm][img]http://www.atom.net.nz/afterburner/ftologos.jpg[/img][/url]

It's gone :( - now carless...
User avatar
wildfaye
Grease Monkey
Posts: 316
Joined: Fri Sep 12, 2003 5:00 pm

Post by wildfaye »

Hmm yea...pollution not on the top of the list...ha...
same for the petrol smell, cos mine smells already...
yea...i m sure e tip of e exhuast would be black etc...

anyway, really wanted to know if the petrol consumption will be affected,
so does anyway have any actual figures to back them up?
like un decatted when they got it n monitored till they decatted it?

:roll:
User avatar
smorison
The Godfather
Posts: 2461
Joined: Sun Aug 04, 2002 5:00 pm
Location: In the TRUCK!!!
Contact:

Post by smorison »

the difference between a decatted FTO and one with a good quality CAT is about 1-2kW ...
User avatar
payaya
Oldtimer
Posts: 3670
Joined: Sat Sep 06, 2003 5:00 pm

Post by payaya »

yeah and 1-2kw is jack! Leave it on be nice to the enviroment. :D
Post Reply