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Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 12-09-2009, 11:15 AM   #1
aspi944
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Arrow Muffler Delete for 330i

Hi Guys,

This what i know about muffler delete.

1. Need to cut of the rear muffler (?? or may be the only muffler)

2. weld two straight pipes all the way out to the exhaust

Now this what i need help on

1. where to get nice looking straight pipes specifically designed for muffler delete and should suits the bimmer looks...

2. how much time/money its takes

3. suggestion on good indy shop in NYC/LI area

Any suggestion would appreciate...
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Old 12-09-2009, 12:26 PM   #2
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You need to cut the muffler, Weld two glass packs or pipes and weld tips on the end. I got this done at a muffler shop for 120, not including the tips
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Old 12-09-2009, 12:28 PM   #3
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Quote:
Originally Posted by n2Bimmer View Post
You need to cut the muffler, Weld two glass packs or pipes and weld tips on the end. I got this done at a muffler shop for 120, not including the tips
thanks man ..but where did you got that pipes and tips?
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Old 12-09-2009, 01:42 PM   #4
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thanks man ..but where did you got that pipes and tips?
Any reputable/competent shop should have piping and the great ones will know exactly how to bend it properly and will use high quality piping. As for the tips, you can get them on ebay, from magnaflow.com , from a local muffler shop, etc... there are tons of place man. I got mine from Lu (OSS) down in Miami so dont have a specific shop but there are tons where you can get them...

Bottom line, try magnaflow.com (under tips), buy some, take it to a good shop that does muffler (not general auto) work and you'll be fine and likely spend under 200..

Here's how my 328 sounds.. not identical to the note your 330 will make but will give you a decent idea should you simply remove the muffler and run straight pipes with tips on at the end (i still have both resonators in place and am on a stock airbox and stock headers).
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Old 12-09-2009, 03:48 PM   #5
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Originally Posted by 2000_328CI View Post
Any reputable/competent shop should have piping and the great ones will know exactly how to bend it properly and will use high quality piping. As for the tips, you can get them on ebay, from magnaflow.com , from a local muffler shop, etc... there are tons of place man. I got mine from Lu (OSS) down in Miami so dont have a specific shop but there are tons where you can get them...

Bottom line, try magnaflow.com (under tips), buy some, take it to a good shop that does muffler (not general auto) work and you'll be fine and likely spend under 200..

Here's how my 328 sounds.. not identical to the note your 330 will make but will give you a decent idea should you simply remove the muffler and run straight pipes with tips on at the end (i still have both resonators in place and am on a stock airbox and stock headers).
cool guys...i will do it...but one last question?

what size of pipes i need?
is there any specific brands?

i will by tips from magnaflow though...
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Old 12-09-2009, 03:51 PM   #6
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the pipes will be 2.25" so your tips should have a 2.25" inlet, and w/e outlet you want. As for the pipes, if your gonna go to a shop, they should already have pipes that will do the job, doesn't matter how they look, b/c they are under the car....no 1 see's them. But the tips....now thats where some money should be spent.
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Old 12-09-2009, 03:53 PM   #7
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the pipes will be 2.25" so your tips should have a 2.25" inlet, and w/e outlet you want. As for the pipes, if your gonna go to a shop, they should already have pipes that will do the job, doesn't matter how they look, b/c they are under the car....no 1 see's them. But the tips....now thats where some money should be spent.
thanks man...i will do that...
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Old 12-30-2009, 11:18 PM   #8
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i had mine done for $160
including tips and pipes and labor

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Old 12-30-2009, 11:18 PM   #9
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Old 12-30-2009, 11:30 PM   #10
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Old 12-30-2009, 11:30 PM   #11
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Old 01-02-2010, 04:54 AM   #12
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I have a welder and did it for free. Then y-d it to a single magnaflow :p

its honestly a bit quiet now, wasn't to horribly loud with stock exhaust minus rear muffler
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Old 01-05-2010, 09:25 PM   #13
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DONT DO IT IF YOU HAVE A 330I!!!, you will lose major torque and get horrible drone at highway speeds if your muffler has a vacuum line. YOU NEED BACK PRESSURE i did this to my car then got it dynoed and i lost 15rwhp and 20lbs of torque from stock!!!
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Old 01-07-2010, 01:07 AM   #14
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do you have the dyno that we can see?

you do need to cap off the vacuum line however I didn't notice the same loss you describe. Please post the before after dynos!
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Old 04-30-2014, 05:13 PM   #15
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do you have the dyno that we can see?

you do need to cap off the vacuum line however I didn't notice the same loss you describe. Please post the before after dynos!
I have a 2002 330i that I recently cut the muffler off of. I'm now running just the stock pipes that end under the rear driver side seat without a muffler. (Until I have the $250 to get the straight pipes from cats back) but do I really have to plug that vacuum line that was going into the butterfly? You think that would really make a difference?
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Old 04-30-2014, 05:14 PM   #16
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inception thread
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Old 04-30-2014, 05:16 PM   #17
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inception thread
Huh
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