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Magnaflow for 535xi 2008 good ?

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Old 04-07-2014, 02:04 AM
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Yeah, I got most of mine out I'll post up some pics this evening.
Old 04-08-2014, 02:11 PM
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Just had the dinan installed today. Haven't even picked it up yet....I heard the magnaflow actually decreased HP and droned so much...
Old 04-08-2014, 04:15 PM
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I replaced magnaflow center muffler with Borla Univ Pro Xs. Its a big help getting rid of drone.
Old 04-09-2014, 09:20 AM
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My Ride: 2010 BMW 535 X-Drive | Sport, Premium, Cold, Nav | OEM MTech Kit | MTech V3 3.0 AE | RDash Plate Lights | Interior LED | 6000K Fogs | SAT Retrofit | Continental DWS | Jehnert Speakers | Gloss Vinyl Roof | Custom Ambient Amber Match LED Interior |
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FYI, I've purchased, painted, and installed my dual CF diffuser. Going to the shop this weekend to do my install. My concern is purely cosmetics and sound, although just slightly more. Want to hear a deeper rumble at idle and loud whine on WOT, all while going different route with Magnaflow mufflers mated to SINGLE dual ovals. Will post up pics and insight when all done.
Old 04-10-2014, 05:00 PM
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Here is what I did to remove the drone on my magnaflow quads.
Mag center and then I added two turbo tubes just after this. They have baffles inside. Then I added isolation weights and ended with the two magnaflow tubes at the tips. Sorry for the crazy picture orientation but after I corrected them, they uploaded differently.
Attached Thumbnails Magnaflow for 535xi 2008 good ?-get-attachment-1.aspx.jpg   Magnaflow for 535xi 2008 good ?-get-attachment-2.aspx.jpg   Magnaflow for 535xi 2008 good ?-get-attachment-3.aspx.jpg   Magnaflow for 535xi 2008 good ?-get-attachment.aspx.jpg  

Last edited by tonyb635; 04-10-2014 at 05:11 PM.
Old 04-11-2014, 05:46 AM
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What brand and size turbo tubes did you use? Also what is that black thing in pic 3? Is that the isolation weight you mentioned? What does that do

Thanks
Old 04-11-2014, 05:43 PM
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Originally Posted by rorschach76
What brand and size turbo tubes did you use? Also what is that black thing in pic 3? Is that the isolation weight you mentioned? What does that do

Thanks
Here is the original link for the exhaust install that shows the part numbers. Yes, the two black rubbers are like weights and also reduce vibration etc.
https://5series.net/forums/e60-parts...xhaust-130347/
Old 04-29-2014, 04:55 AM
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What size tubing did you go with?
Old 04-29-2014, 09:18 AM
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Originally Posted by ftl09bmw535i
What size tubing did you go with?
On my 535 I used 2.25"
Old 04-30-2014, 03:12 PM
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Originally Posted by tonyb635
On my 535 I used 2.25"
Why 2.25"? My exhaust guy is saying 3" to 2.5" any thoughts to not support this? Also how come the 5 mufflers basically??
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