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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > 328i Borla exhaust



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      09-19-2012, 10:39 AM   #1
justplaingreg
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328i Borla exhaust

My 328i is at Borla Performance for a new cat-back exhaust. Should be completed in a couple of weeks. Can't wait!



VIDEO LINK:

Last edited by justplaingreg; 09-24-2012 at 12:01 PM. Reason: add video link
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      09-19-2012, 10:53 AM   #2
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Got one of these put on my car, love the sound and wayyyy cheaper than the PE
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      09-19-2012, 11:32 AM   #3
justplaingreg
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Quote:
Originally Posted by Tim603 View Post
Got one of these put on my car, love the sound and wayyyy cheaper than the PE
I'm new to the E90 world, what is a P/E exhaust and how much are they? Thanks!
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      09-19-2012, 12:02 PM   #4
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Quote:
Originally Posted by justplaingreg View Post
I'm new to the E90 world, what is a P/E exhaust and how much are they? Thanks!
Its a BMW Performance Exhaust (PE), it just the muffler and they go for about $1000 give or take. Probably one of the highest quality/sounding exhausts out there for our cars tho
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      09-19-2012, 12:21 PM   #5
justplaingreg
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Quote:
Originally Posted by Tim603 View Post
Its a BMW Performance Exhaust (PE), it just the muffler and they go for about $1000 give or take. Probably one of the highest quality/sounding exhausts out there for our cars tho
Thanks for the information! I had a Borla on my Mini R56. It sounded awesome. Borla currently doesn't have a system for the 328I. They are using my car as the test mule. I can't wait to hear it and hopefully, I'll see the performance gains as I did on my Mini! this is supposed to be a full cat-back system.
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      09-19-2012, 01:07 PM   #6
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I cant wait to see how this sounds and turns out
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      09-19-2012, 02:29 PM   #7
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There won't be any performance gains really.
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      09-19-2012, 04:06 PM   #8
justplaingreg
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Originally Posted by kudos View Post
There won't be any performance gains really.
I got 5% (8 hp more) on my Mini and on my son's Camaro he got 20hp. SO I am curious to see what I will get with my system.
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      09-19-2012, 04:21 PM   #9
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Quote:
Originally Posted by justplaingreg View Post
I got 5% (8 hp more) on my Mini and on my son's Camaro he got 20hp. SO I am curious to see what I will get with my system.
there have been endless tests on this forum about exhaust systems equaling hp/tq gains and so far no exhaust system on these cars have shown anything substantial. People mostly just buy them for the ear candy
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      09-19-2012, 04:41 PM   #10
justplaingreg
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Quote:
Originally Posted by Tim603 View Post
there have been endless tests on this forum about exhaust systems equaling hp/tq gains and so far no exhaust system on these cars have shown anything substantial. People mostly just buy them for the ear candy
I am doing for ear & eye candy as well as performance and knowing that it will be the last system I will ever have to buy for my 328I.
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      09-19-2012, 05:59 PM   #11
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Quote:
Originally Posted by Tim603
Quote:
Originally Posted by justplaingreg View Post
I got 5% (8 hp more) on my Mini and on my son's Camaro he got 20hp. SO I am curious to see what I will get with my system.
there have been endless tests on this forum about exhaust systems equaling hp/tq gains and so far no exhaust system on these cars have shown anything substantial. People mostly just buy them for the ear candy
Yes they have - headers are 20 odd hp and cat backs are 5-10 easy

People don't usually do cat back, just axel back
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      09-19-2012, 09:00 PM   #12
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less weight equals faster car, BMW factory systems are porky as hell, if he shaves 40-50 pounds off the car the butt dyno will think it is faster hence why people think there are decent gains..my magnaflow cat back is on the way now for the 330i, I am also deleting the 2ndary cats as well, that should yield something plus about 50 pounds
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      09-19-2012, 09:13 PM   #13
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i still can't believe borla hasn't made a catback for our car... not that hard really... i loved the sound on my friend's subie. throaty and not too raspy
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      09-19-2012, 10:25 PM   #14
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Can't wait to see how it sounds.
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      09-20-2012, 01:08 PM   #15
justplaingreg
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Quote:
Originally Posted by jfisher160 View Post
Can't wait to see how it sounds.
I was just told they did the first drive with the system on the car. Borla said it sounds deeper & throatier than the stock system. Not too loud, but it will get louder after the break in period. Borla said they will be doing a dyno run with the new system. I will let you know when I hear back from them.
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      09-20-2012, 02:07 PM   #16
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I want to hear this when your done
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      09-20-2012, 04:46 PM   #17
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Quote:
Borla said it sounds deeper & throatier than the stock system. Not too loud, but it will get louder after the break in period.
Any word on pricing? General avail.? And that it'll fit a 325i?

Last edited by AlanAZ; 09-28-2012 at 08:58 AM.
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      09-20-2012, 05:29 PM   #18
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Quote:
Originally Posted by Tim603 View Post
Got one of these put on my car, love the sound and wayyyy cheaper than the PE
Quote:
Originally Posted by justplaingreg View Post
Thanks for the information! I had a Borla on my Mini R56. It sounded awesome. Borla currently doesn't have a system for the 328I. They are using my car as the test mule. I can't wait to hear it and hopefully, I'll see the performance gains as I did on my Mini! this is supposed to be a full cat-back system.
generic borla muffler??

Quote:
Originally Posted by just4kickz View Post
i still can't believe borla hasn't made a catback for our car... not that hard really... i loved the sound on my friend's subie. throaty and not too raspy
nothing beats the sound of an aftermarket exhaust on subaru's boxer engine IMO. For engines smaller than v8s that is.


Very interested how this exhaust system plays out with sound and gains

Last edited by engotski; 09-20-2012 at 05:35 PM.
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      09-21-2012, 07:42 AM   #19
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Looks legit.
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      09-21-2012, 10:46 AM   #20
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Quote:
Originally Posted by justplaingreg View Post
Borla said they will be doing a dyno run with the new system. I will let you know when I hear back from them.
Sounds great, and thanks for being the test subject on this one, but did they do a before dyno? That's always the hardest part. Anyone can say it feels faster/sounds faster/butt dyno faster or even show a "greater that presumed stock" dyno after the fact, but unless you do a BEFORE MOD and then AFTER MOD dyno, then it's all just speculation, which this forum is full of already

Hope it turns out sounding and looking sweet though!
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      09-24-2012, 12:00 PM   #21
justplaingreg
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Quote:
Originally Posted by Dr.GumbyM.D. View Post
Sounds great, and thanks for being the test subject on this one, but did they do a before dyno? That's always the hardest part. Anyone can say it feels faster/sounds faster/butt dyno faster or even show a "greater that presumed stock" dyno after the fact, but unless you do a BEFORE MOD and then AFTER MOD dyno, then it's all just speculation, which this forum is full of already
http://www.youtube.com/watch?v=xQPaZ8EirP0

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      09-24-2012, 12:43 PM   #22
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The video says it will be available in October 2012!

Did they mention any pricing and compatibility with e90s and e92s?
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