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De-cat and exhaust modify


Kurty
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Supercharged

hi

 

may i seek some advise on de-cat.

 

so far, did anyone do it and pass inspection?

from what i was told, de-cat is good and give extra bhp though not environment friendly.

and those guys who 'operate', cut and clear on the top whereby it will looks good to pass inspection.

 

was quoted $60. not sure if this is the correct price.

 

and usually how many Cat does a car has? 1 or 3?

 

was also quoted $250 for an aftermarket muffer with installation.

thinking of going MAN to seek their opinions.

 

 

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hi

 

may i seek some advise on de-cat.

 

so far, did anyone do it and pass inspection?

from what i was told, de-cat is good and give extra bhp though not environment friendly.

and those guys who 'operate', cut and clear on the top whereby it will looks good to pass inspection.

 

was quoted $60. not sure if this is the correct price.

 

and usually how many Cat does a car has? 1 or 3?

 

was also quoted $250 for an aftermarket muffer with installation.

thinking of going MAN to seek their opinions.

 

in my opinion,

 

Man is cheap and good... just hope the staff there doing your car is one of the better ones

 

a car usually has one cat.. removal of cat usually will improve FC as well... a well conditioned car will pass inspection (vicom, STA) even without a cat. but i dont know about LTA's inspection (those caught by TP)...

 

after market full exhaust systems which pass LTA, expect to pay 1k up. extractor, high flow cat and muffler...

 

just take note that a lousy exhaust set up will kill your low-end... so best to go to a workshop experienced in your make and model..

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Neutral Newbie

don have to think de... mostly wont pass inspection, the noise and the emission is enough to fail you...

 

and btw, your car is auto or manual?

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hi

 

may i seek some advise on de-cat.

 

so far, did anyone do it and pass inspection?

from what i was told, de-cat is good and give extra bhp though not environment friendly.

and those guys who 'operate', cut and clear on the top whereby it will looks good to pass inspection.

 

was quoted $60. not sure if this is the correct price.

 

and usually how many Cat does a car has? 1 or 3?

 

was also quoted $250 for an aftermarket muffer with installation.

thinking of going MAN to seek their opinions.

 

in my opinion,

 

Man is cheap and good... just hope the staff there doing your car is one of the better ones

 

a car usually has one cat.. removal of cat usually will improve FC as well... a well conditioned car will pass inspection (vicom, STA) even without a cat. but i dont know about LTA's inspection (those caught by TP)...

 

after market full exhaust systems which pass LTA, expect to pay 1k up. extractor, high flow cat and muffler...

 

just take note that a lousy exhaust set up will kill your low-end... so best to go to a workshop experienced in your make and model..

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hi

 

may i seek some advise on de-cat.

 

so far, did anyone do it and pass inspection?

from what i was told, de-cat is good and give extra bhp though not environment friendly.

and those guys who 'operate', cut and clear on the top whereby it will looks good to pass inspection.

 

was quoted $60. not sure if this is the correct price.

 

and usually how many Cat does a car has? 1 or 3?

 

was also quoted $250 for an aftermarket muffer with installation.

thinking of going MAN to seek their opinions.

 

in my opinion,

 

Man is cheap and good... just hope the staff there doing your car is one of the better ones

 

a car usually has one cat.. removal of cat usually will improve FC as well... a well conditioned car will pass inspection (vicom, STA) even without a cat. but i dont know about LTA's inspection (those caught by TP)...

 

after market full exhaust systems which pass LTA, expect to pay 1k up. extractor, high flow cat and muffler...

 

just take note that a lousy exhaust set up will kill your low-end... so best to go to a workshop experienced in your make and model..

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without cat confirm plus chop fail inspection. please do not hear from others. go ahead and de cat den update yourself.

 

hearsay will always be hearsay. the car's stock ecu and tuning is tuned in mind with the exhaust flow with cat on. don regret, the cat itself cost a lot.

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With such illegal modifications you will loose money and have many headaches. Yr ride ECU will be unable to switch from open to close and that means yr ride engine will always on rich side.You will never be able to pass the exhaust emission test which is a major and therefore any repeat tests will cause you money. Good luck and happy driving

 

PS all OEM original cats are machine TIG weld, modified cats have too may telltale signs in their manually executed weldings finishing and others.

Edited by Yeobh
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without cat confirm plus chop fail inspection. please do not hear from others. go ahead and de cat den update yourself.

 

hearsay will always be hearsay. the car's stock ecu and tuning is tuned in mind with the exhaust flow with cat on. don regret, the cat itself cost a lot.

 

i pass inspection at vicom without cat before... i brought the car myself not by WS...

Edited by Ken4555
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With such illegal modifications you will loose money and have many headaches. Yr ride ECU will be unable to switch from open to close and that means yr ride engine will always on rich side.You will never be able to pass the exhaust emission test which is a major and therefore any repeat tests will cause you money. Good luck and happy driving

 

PS all OEM original cats are machine TIG weld, modified cats have too may telltale signs in their manually executed weldings finishing and others.

 

bro, without cat yes i think at low revs yes the ECU will be running rich more... but cruising highway speeds most ECUs will handle it fine... assuming normal driving...

 

but how you know the emission test sure wont pass? you fail before is it?... i have sent my car before WITHOUT a cat and i pass the emmission test... VICOM at Kaki Bukit, AMK also....

 

as for modified cats, there are high flow cats with are approved (i think its waste of money)... i have never heard of ppl modifying the cat, but rather replace with high flow or take out totally...

 

but maybe LTA emmission tests might have different machines compared with Vicom or STA... this i'm not sure...

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i was also being told that de-cat will not pass the car inspection.

perhaps depending on your luck.

some damn ON, while some just inspect for the sake of inspecting.

 

till date, i did not hear anyone complaining of de-cat and fail inspection?

 

nonetheless, i believe they are some already de-cat and driving happily.

you weigh your balance.~

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i was also being told that de-cat will not pass the car inspection.

perhaps depending on your luck.

some damn ON, while some just inspect for the sake of inspecting.

 

till date, i did not hear anyone complaining of de-cat and fail inspection?

 

nonetheless, i believe they are some already de-cat and driving happily.

you weigh your balance.~

 

really bro the Vicom guy poked a metal thing into my exhaust.. went to my driver seat and rev rev also...

 

but maybe now machines have changed different is it?

 

but i guess ppl who de-cat probably will get a workshop to inspect for them i guess...

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Not enough power?

 

After de-cat, what next...extractor, add TC, etc.

 

So you bought a wrong car lah.

 

Buy a more powerful car next time.

 

I hate those that de-cat without due care for the environment.

 

Do it the proper way. Get the approved high flow cat for your model.

 

 

 

 

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Supercharged

Thanks for the great views.

 

30 for de cat is really cheap loh. I just tried calling MAN, guess they are closed on Sunday.

 

I'm driving a manual, 1.1

 

So the emission test is for the cat, interesting.

Good point there, de cat seems gd but if touch wood fail the test. May have a problem is getting a replacement cat.

 

For the exhaust, think of going straight through.

 

My ride is an opc so inspection is on 3,5,7,9yrs

 

May I ask what is bullet? I saw my friends ride, removal of the Milo tank. Said to be very good but way too noisy. Not going for such.

Best part is I went to do soundproofing with him , with that, not diff inside his car

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I understand under LTA ruling petrol cars imported into Singapore must come equipped with approved cat. If your ride is before this ruling there is no need to have a cat.

LTA have since ( not sure of the date) is only a licensing and enforcement agency, all testings of new type-approved vehicles imported are inspected by the authorised stations.

 

Many car owners place dummy cat in position just to try and fool the inspectors. :D

 

 

PS Pl hold yr horse , you sound very angry and unhappy. Have nice Sunday.

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Neutral Newbie

i changed my muffler for $180 at MAN, the macro box type, the bullet type ( seen on evo and rex) cost ard 200+

 

not sure about decat though,

 

anyone can help me check how much for changing midpipe to straight through ? thanks

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Supercharged

what is a S-flow exhaust?

 

read some article saying S-flow for pick up, straight through for top speed.

 

just curious

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