less petrol using

[Daddyboy]

gidday , Ive just been told that if you remove the cat on the exsaust you get more kms for your dollar .
Our holden has done 143 , so they say that the cat needs replacing @150km .
has anyone heard this also

[Benboy]

Removing the Catalytic Converter and driving on a road is illegal.
Any (ANY) modification(s), unless approved to ADR standards, that change/alter/modify any aspect of your vehicle from the ADR standards/requirements that existed at the time of manufacture of your vehicle are ILLEGAL.

[BIG346]

gidday , Ive just been told that if you remove the cat on the exsaust you get more kms for your dollar .
Our holden has done 143 , so they say that the cat needs replacing @150km .
has anyone heard this also

haha ur joking right?? u could use even less fuel by just having no exhaust and just go extractors and out. but is quite illegal

[alien]

Why not go for a high flow cat instead of making your car illegal? That will get better flow over your normal cat

[wortus]

Why not try a bigger exhaust from the cat back and see what happens, if your not happy then try extractors and/or a high flow cat however they are expensive so you have to work out how long the fuel saving will take to recover the cost and correct me if I am wrong these bigger exhaust systems fromthe cat back are steel and will rust our where as the one on the car is stainless and will last a lot longer. What sort of fuel consumption are you getting and how hard do you drive it? I'm happy with what my VY does, up to 30% les fuel than my old VN V6 so I am going ot leave my eexhaust as it is unless it ever needs to be replaced. VN has 300,000 and the cat was never replaced.

[Delish-VY]

theres also the little perk of extra performance and beastier sound if you go for the exhaust/catback + extractors, so yeah...might wanna go for that, better fuel economy and an all round better performing cara, im saving for mine as we speak!