Which MagnaFlow muffler is the right fit for 545i?
03-22-2011 | 06:11 PM
#1
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Joined: Dec 2010
Posts: 65
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From: Toronto Canada
My Ride: 05 545i Sportpackage, Mtech Body Kit
Im on the magnaflow website. i just want a muffler for a better than stock sound...i know im cheaping out here. but im broke (girlfriend is a money pit) and if i could have sex with my car i would dump her...
anyways...whats the model number that fits a 545i, apparently alot do, whats best?
anyways...whats the model number that fits a 545i, apparently alot do, whats best?
04-07-2011 | 08:57 PM
#2
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Joined: May 2010
Posts: 454
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From: Bay Area, Cali.
My Ride: 545i - GONE
Members here have had the 14816 installed on their 45's, it has dual 3.5" tips (looks nice). I went to a shop around the area today to see if this was possible, guy quoted me $240 for everything. He also pointed out that the 4" piping from the exhaust will have to be fitted to fit the 2.5" piping of the Magnaflow 14816.
Figured this wouldn't be a big problem since I've had my resonators straight-piped (all 4 of them), also read somewhere that the 45's like to have some backpressure. So if anything, you'll be increasing backpressure with the 14816.
To counter the 4" to 2.5" piping, he mentioned that he could put in some 7" exhaust from Magnaflow, it's a round exhaust vs. the oval exhaust of the 14816...sounded way too extreme for me.
Figured this wouldn't be a big problem since I've had my resonators straight-piped (all 4 of them), also read somewhere that the 45's like to have some backpressure. So if anything, you'll be increasing backpressure with the 14816.
To counter the 4" to 2.5" piping, he mentioned that he could put in some 7" exhaust from Magnaflow, it's a round exhaust vs. the oval exhaust of the 14816...sounded way too extreme for me.
04-07-2011 | 11:27 PM
#3
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Joined: Jan 2010
Posts: 294
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From: Hollywood, CA
My Ride: 2007 525i Premium Package "All Black Everything"
EXT: 20% Tint All Round | M-Front (Weezy) | Black/White Roundels | Shadowline Paint Match Grilles | M Style Sidemarkers | Vertini Riviera-S 20s
INT: I POD Intg | Trim Rings | ACS Pedals | Cobra XRS 10G
LHT: Xenon Adaptive | XENESIS Fogs| WeissLicht Plate LEDS | Door LEDS I Interior Xenon Pkg
PER: RPI Induction (Weezy) | BMC Filter | Sprint Booster V2
AUD: JL Audio
would this also fit on a 525i?
04-08-2011 | 06:12 AM
#4
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Joined: Apr 2011
Posts: 136
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From: northern new jersey
My Ride: [IMG]http://i848.photobucket.com/albums/ab48/big525i/IMG_20110329_082033-1.jpg[/IMG]
2005 525i mtech front and rear bumper Magnaflow custom quad tip exhaust with some carbon fiber goodies and staggered VMR VB3 wrapped in Nitto Invos
I currently have a 2 1/4 dual in dual out muffler 11215 thats the number for it on the magnaflow website its sounds like this with with my 05 525i http://s848.photobucket.com/albums/a...t=VID00007.mp4
04-08-2011 | 06:16 AM
#5
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Joined: Apr 2011
Posts: 136
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From: northern new jersey
My Ride: [IMG]http://i848.photobucket.com/albums/ab48/big525i/IMG_20110329_082033-1.jpg[/IMG]
2005 525i mtech front and rear bumper Magnaflow custom quad tip exhaust with some carbon fiber goodies and staggered VMR VB3 wrapped in Nitto Invos
i just matched oem piping size its not the pipe size that restricts the flow of air but the rear catalytic convertor and muffler if uve gone underneath the car u would see the catalytic convertor is a huge restriction
04-10-2011 | 12:54 PM
#6
Contributors
Joined: Jan 2010
Posts: 294
Likes: 0
From: Hollywood, CA
My Ride: 2007 525i Premium Package "All Black Everything"
EXT: 20% Tint All Round | M-Front (Weezy) | Black/White Roundels | Shadowline Paint Match Grilles | M Style Sidemarkers | Vertini Riviera-S 20s
INT: I POD Intg | Trim Rings | ACS Pedals | Cobra XRS 10G
LHT: Xenon Adaptive | XENESIS Fogs| WeissLicht Plate LEDS | Door LEDS I Interior Xenon Pkg
PER: RPI Induction (Weezy) | BMC Filter | Sprint Booster V2
AUD: JL Audio
that model looks like it only has one pipe coming out.....i want it to have two like the stock one
04-10-2011 | 06:35 PM
#7
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Joined: Apr 2011
Posts: 136
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From: northern new jersey
My Ride: [IMG]http://i848.photobucket.com/albums/ab48/big525i/IMG_20110329_082033-1.jpg[/IMG]
2005 525i mtech front and rear bumper Magnaflow custom quad tip exhaust with some carbon fiber goodies and staggered VMR VB3 wrapped in Nitto Invos
it should i looked it up before i posted it
04-11-2011 | 03:43 PM
#8
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Joined: Dec 2007
Posts: 8,998
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From: St. Louis Burbs, USA
My Ride: 2007 530i. Purchased 6/28/07. Titanium Silver Metallic, Black Dakota Leather, Dark Poplar Trim, Steptronic, Premium Package, Cold Weather Package, Bluetooth, Adaptive Control Xenons. 10/30/07 Added OEM 124s with 245/40/18 & 275/35/18 Michelin Pilot Sport A/S tires. Installed red Cal Covers� from BavAuto. 11/21/07 Added OEM all-weather floor mats (for winter, carpet in summer) and coat rack. 6/26/08 installed M5-style rear spoiler. 6/30/08 put on red reflectors. 8/22/08 Euro turn signal stickers applied. 3/20/09 Installed Shadowline Trim. 3/27/09 Added Matte Black Kidney Grilles from Trinity. 4/03/09 Installed Bimmian Shadow Matte Black 530i Badges. 4/04/09 Installed LED license plate lights from Trinity. 5/01/09 Installed Brabus Interior LED Kit and White Angel Eyes. 5/02/09 Put in Brabus 6K Fogs. 5/14/09 Removed charcoal filter. 5/15/09 Installed light smoke LED side marker lamps from Trinity. 5/21/09 Sprint Booster. 6/12/09 Painted exhaust tips flat black. 6/13/09 Pulled red Cal Covers and painted calipers low gloss black. 6/27/09 RPI Ram Air Scoop from Trinity. 8/15/09 Installed Brabus's silver invisibulbs front and rear. 9/24/09 Installed R-Dash license plate LEDs from Brabaus (John).
You may want to do a search on Magnaflow in the forums. I recall that highway droning and loss of HP were issues.
04-11-2011 | 09:37 PM
#9
Contributors
Joined: Jan 2010
Posts: 294
Likes: 0
From: Hollywood, CA
My Ride: 2007 525i Premium Package "All Black Everything"
EXT: 20% Tint All Round | M-Front (Weezy) | Black/White Roundels | Shadowline Paint Match Grilles | M Style Sidemarkers | Vertini Riviera-S 20s
INT: I POD Intg | Trim Rings | ACS Pedals | Cobra XRS 10G
LHT: Xenon Adaptive | XENESIS Fogs| WeissLicht Plate LEDS | Door LEDS I Interior Xenon Pkg
PER: RPI Induction (Weezy) | BMC Filter | Sprint Booster V2
AUD: JL Audio
im not really doing it for the sound although a little better sound will be nice. There may be a slight loss in HP but the OEM muffler ways a ton like 50 pounds the magnaflow will save me 25 pounds which will increase speed.
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