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converter

Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 3 Series
Forum Discription: This forum will deal with any issues on the BMW 3 Series (E21, E30, E36, E46, E90, E91 & E92)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=6285
Printed Date: 20-May-2024 at 20:04


Topic: converter
Posted By: 325ism50
Subject: converter
Date 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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oklah


Replies:
Posted By: pualo
Date 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.

Posted By: 325ism50
Date Posted: 15-March-2004 at 14:12

Yes, I mean the catalytic conventer.

Thanks for your quick reply. 



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oklah

Posted By: Stone-IslandV8
Date Posted: 15-March-2004 at 15:51
Check the dyno figures at www.supersprint.com - 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.

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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

Posted By: 325ism50
Date 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?

 

 



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oklah


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