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12-02-2011, 11:21 AM | #1 |
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another happy oem exhaust modder
so i just got my modded stock exhaust installed and wow -- online videos really don't do the results justice...for me -- a guy in his mid-thirties with a wife and kids -- this mod seems to be the perfect balance between an enhanced/more aggressive sound and over-the-top loudness...in fact, from inside the car in most driving situations, i really can't tell a difference between modded and stock...but when you get on the throttle a bit the sound really comes alive...oh, and the ride from piper to my office was about 20 minutes on the toll road -> beltway cruising between 65mph - 80mph and i noticed no drone what so ever...
huge shout out to robbie and the guys at piper motorsports for a top notch job...special thanks as well to tuner1984 for the donor exhaust...and last but certainly not least, props to periokid for the initial idea...obviously this mod has been discussed ad-nauseum on this forum, but just in case anyone is curious, the basic steps we/piper took were; 1) cut open the top of the can 2) remove the sound deadening material 3) cut and remove the two larger perforated tubes (the smaller perforated tubes that are covered with the steel wool-like material were untouched) 4) fabricate and weld in two non-perforated exhaust tubes in place of the old perforated ones 5) stuff the sound deadening material back in 6) spot weld the two layers of the muffler together (this was done to ensure no rattling over time...note that this would only be necessary on early e9x exhausts as i believe bmw switched to single-layer cans in either 2010 or 2011) 7) weld the top of the can back on 8) paint the can with flat black silicone-based paint below are a couple pics of the finished product (bottom, top, then a close up of the top to see the welds)...i'll post more pics of the work in progress a little later on...
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2020 X7 M50i on order!
Last edited by abugiacomo; 12-02-2011 at 11:37 AM.. Reason: type-o |
12-02-2011, 11:48 AM | #2 | |
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Nice.... Any vids coming?
How much did it cost and how long did it take? Quote:
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12-02-2011, 02:29 PM | #5 |
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12-02-2011, 03:59 PM | #7 |
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the piper bill came out to $670 -- 6.5 hours of labor plus about $50 in shop supplies -- which is a bit pricey considering what this mod can be done for if one decides to go the tape or clamp route (rather than cutting and welding in solid replacements for the two large perforated tubes)...plus that price includes the painting and uninstallation/installation...at the end of the day i was ok with paying a bit of a premium because i wanted the tubes actually replaced (for longevity sake) and because i believe piper to be a top notch shop...
i asked robbie about the "group buy" idea and honestly he didn't seem too interested...he was totally cool about it, and would be happy to do this mod for any other forum members (my brother is actually having his done next week), but they're pretty much at capacity as is, so significant discounts aren't really in the cards...of course, i've never been the most charming dude in the world, so maybe some of you guys can convince him to go lower???
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2020 X7 M50i on order!
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12-07-2011, 10:41 AM | #10 |
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12-07-2011, 11:00 AM | #11 |
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Baarii,
Can you PM me your number again? I will coordinate with you to meet up with Steve next week then. Also want to check out your new ride. I see you are already selling it too. Big Baller. What's next? |
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12-07-2011, 11:05 AM | #12 |
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12-07-2011, 12:37 PM | #13 |
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Barii u still have the M? Steve glad everything worked out for you.
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12-07-2011, 04:04 PM | #15 |
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tentatively, my brother is having his installed first thing monday morning -- between 9am - 10am -- at piper...if that day/time/place is convenient for any of you guys it'd be a good chance to hear it while also discussing the process with robbie...
wouldn't have been possible if not for you selling me your old stock exhaust -- so thanks to you my friend... i never thought i was a tech retard, but for the life of me i can't figure out how to post videos on here...maybe someone should post a diy thread for that :-)...
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2020 X7 M50i on order!
Last edited by abugiacomo; 12-07-2011 at 04:06 PM.. Reason: type-o |
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12-09-2011, 10:21 AM | #16 | |
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Yes Sir!
Quote:
So from your computer you upload the video on youtube and then get the link for the video and just use the last part of the url for example: http://www.youtube.com/watch?v=reFHXfOFWYI So you would copy reFHXfOFWYI In advance editing mode for the post on here click the youtube button and copy those characters in between: [u2b]characters from the youtube link go here[/U2B ] |
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12-09-2011, 10:39 AM | #17 | |
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Quote:
Last edited by SPEED & TECH MOTORING; 12-16-2011 at 07:14 AM.. |
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01-03-2012, 02:10 PM | #20 |
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no, we never met. But over the holidays Karim came to my house to show me his OEM exhaust mod. I think it sounded good. Plus for the cost of it, i think it's a no brainer.
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