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2Addicts | BMW 2-Series forum Technical Topics N20 (228i) / B46 (230i) Engine, Transmission, Exhaust, Tuning Catless Downpipe

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      01-03-2017, 07:07 PM   #1
cxd222
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Catless Downpipe

Hey guys, I have a 2015 BMW 220i with a muffler delete and I love it .

I am thinking of going to the next stage of getting a catless downpipe to get more crackling from the exhaust. Im faced with 2 problems

1. removing the cat will trigger the o2 sensor and create an engine lit
2. removing the cat will make the car smell bad

ive heard of some adapter you can put on the sensors for it to not trigger im not too sure never seen where i can buy one...

any ideas guys? greatly appreciated

p.s does anyone know how many cats there actually are on a 2er
also thinking of doing a mid silencer delete, what do you think

or are there any other options to make exhuast crackle

Last edited by cxd222; 01-03-2017 at 07:35 PM..
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      01-04-2017, 12:13 PM   #2
Dav3
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Quote:
Originally Posted by cxd222 View Post
Hey guys, I have a 2015 BMW 220i with a muffler delete and I love it .

I am thinking of going to the next stage of getting a catless downpipe to get more crackling from the exhaust. Im faced with 2 problems

1. removing the cat will trigger the o2 sensor and create an engine lit
2. removing the cat will make the car smell bad

ive heard of some adapter you can put on the sensors for it to not trigger im not too sure never seen where i can buy one...

any ideas guys? greatly appreciated

p.s does anyone know how many cats there actually are on a 2er
also thinking of doing a mid silencer delete, what do you think

or are there any other options to make exhuast crackle
1. JB4 will get rid off the CEL error or Armytrix/Fabspeed have solutions to avoid CEL

2. Smell will be more pronounced but nothing excessively dramatic depending on who you ask
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      01-04-2017, 05:21 PM   #3
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Quote:
Originally Posted by davgia View Post
1. JB4 will get rid off the CEL error or Armytrix/Fabspeed have solutions to avoid CEL

2. Smell will be more pronounced but nothing excessively dramatic depending on who you ask
+1

You can also get the BMS can flap module, that being Jb4 is a must on this car.
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