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-   -   325e cat removal (http://www.bimmerfest.com/forums/showthread.php?t=669892)

87bmw e30 01-13-2013 06:10 PM

325e cat removal
 
I want to take the cat off my car, its a 1987 325e, what till removing the cat do for my engine, thanks

E30-325 01-13-2013 07:12 PM

nothing. the power your car makes, makes removing your cat pointless. stop it.

Titan_Omega 01-13-2013 07:16 PM

all removing your cat will do is save a little weight to be honest.

87bmw e30 01-13-2013 09:46 PM

Thanks, im not looking for any performance, i was just wondering if it would harm the engine at all.

e30325i 01-14-2013 07:15 AM

possibly make it a bit louder as well

Nick323 01-15-2013 04:54 AM

Every car reacts different to Cat removal.
Here we don't need it, so out it goes as it serves no Automotive function ;)

87bmw e30 01-15-2013 10:56 AM

Awesome, thank you.

downhiller 01-15-2013 04:48 PM

Quote:

Originally Posted by Nick323 (Post 7314322)
Every car reacts different to Cat removal.
Here we don't need it, so out it goes as it serves no Automotive function ;)

that graph is for a s60 from a stage 1 to a stage 2 turbo. dont know where you were trying to go with that...but yeah.....

anyway, removing the cat will let the engine breathe better. what this means in performance wise, youll get better high end (not much) youll lose some low end, but the big thing is mpgs. you may see 1-2mpg more unless youre like me, then you get 5-6mpgs less cause the exhaust is louder.

oh and pray you dont ever get emission laws, cause your car will fail miserably

Nick323 01-16-2013 05:32 AM

Downhiller, it was just a graph taken from a random vehicle where we had cleaned out the cat + fitted a K&N replacement filter to show the HUGE increase in power.
Granted, these graphs are from turbo cars, as we normally do Headers with FF when we are removing the cats on NA vehicles. Doing a Territory as we speak.
I agree with what you are saying.
If the fuel is a bit dodgy, it will clog the cat taking away quite a bit of power.

Here we think emissions are what you get from baked beans :rofl:

hornhospital 01-16-2013 08:18 AM

Quote:

Originally Posted by Nick323 (Post 7317133)
Here we think emissions are what you get from baked beans :rofl:

:lmao:

Good one, Nick. Quote worthy.

87bmw e30 01-16-2013 12:58 PM

Thanks guys, im going to take off this weekend and let you know the results.


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