ditching the CAT on 318is

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reggiegasket
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Post Wed Oct 04, 2006 9:19 pm

Have been told by my garage and MOT guy I can ditch the CAT and get a straight through exhaust.

Anyone done this? I assume there's some power benefit. Is there a good exhaust which gives a little more sound over standard?

G
E30Mark
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Post Wed Oct 04, 2006 9:39 pm

are you sure you have got a CAT??? is there a lambda sensor on the exhaust? check under the battery tray, if you have a spare connectoer, then you DO NOT have a CAT...

Aftermarket exhausts for the 318iS are few & far between.... the original exhaust was a good design.
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Pal318is
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Post Wed Oct 04, 2006 11:43 pm

I have a Powerflow jobby on mine, decent exhaust and sounds ok too.

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reggiegasket
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Post Fri Oct 06, 2006 9:19 am

Ah, now I'm not sure. I can't remeber why I thought it has a CAT :mad: Will have a look.

Sounds like there's little advantage from changing the exhaust anyway? I was hoping to get a bit more midrange out of the engine. Any other tips? Have a viper chip and Pipercross air filter.

G