converter

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   If I take out the converter and fitting the after market box, my engine give more power or less power.

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325ism50 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 15-October-2003 Location: Austria Status: Offline Points: 21	Topic: converter Posted: 15-March-2004 at 12:19
	If I take out the converter and fitting the after market box, my engine give more power or less power.

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pualo Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member I Joined: 23-October-2003 Location: United Kingdom Status: Offline Points: 284	Posted: 15-March-2004 at 14:03
	Do you mean the catalytic converter in the exhaust? If so, you may notice an improvement at the top end, but from what I understand BMW cat's are pretty efficient already. Also, you may find problems come MOT time, because if a car had one fitted originally, it should retain it.

325ism50 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 15-October-2003 Location: Austria Status: Offline Points: 21	Posted: 15-March-2004 at 14:12
	Yes, I mean the catalytic conventer. Thanks for your quick reply.

Stone-IslandV8 Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Really Senior Member II Joined: 31-January-2003 Location: North Somerset Status: Offline Points: 3015	Posted: 15-March-2004 at 15:51
	Check the dyno figures at Supersprint. They reckon the tuned M3 engines get the best gains by using Decat pipes. If the car was after 1991 and supplied with a CAT then it would be illegal to run without but I know of a couple of 1995 ~M3s that have passed the MOT without a CAT.
	Gentlemen I may not have a brain but I do have an idea Past; E39 540T/E46 328CI/ E39 535/ E39 520/ E36 M3/ E36 318iS jet black Mtech/ E46 320d/ E36 318iS diamond black/ E36 318iS blue Mtech kit

325ism50 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 15-October-2003 Location: Austria Status: Offline Points: 21	Posted: 15-March-2004 at 16:05
	A machanic told me a car with out a CAT give less power. My M50TU model 1994 no more CAT now I replace the CAT with Sibering centere box. so, that mean my engine now give more power or less?