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09-04-2012, 08:33 AM | #1 |
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UPDATED! Installed Magnaflow Mufflers
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http://www.m3post.com/forums/showthread.php?t=754740 Had my local muffler shop install the magnaflow mufflers (part # 14816.) I wanted to experiment with this before I dumped more money on getting a high quality, crafted by God exhaust--and suffice to say, these $250 mufflers (total) sound pretty damn wicked and throaty for the price. There is some drone around the 2500-3200 rpm range if I lug the engine, but if I leave it in cruise control at 65 mph, its tolerable, with some "humming" from the rear. I am thinking a new X-Pipe (the stock m3 x pipe, from what I have read, is a poor creation of what a true crossover is supposed to be) will remedy this some more. Maybe I will see if a new set of connecting pipes without the oem hydroformed pipes would help, too. I can get the magnaflow tru-x crossover for 60 bucks through a friend and can get it installed for free. I may do this to see if it eliminates the drone a bit more. I also don't have the secondary cats in my car either. Overall, I paid $250 shipped for both mufflers, and paid $100 to get them installed. $350 total investment. Muffler shop cut off the stock muffler and welded in the new mufflers in the locations where the connecting pipes met with the OEM muffler. Fitment is great, and it looks more aggressive if you look at it from the rear (the finned differential is awesome.) I will follow up once I have driven some more miles on it and perhaps it will mellow out some more, and will install the new x pipe on it, as well. I have attached some pictures, and I made a quick video that I posted the link to underneath the pictures. I only revved to about 5000 rpms due to my next door neighbors having a labor day party and didn't want them to be angry.
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2008 (07/08) E92 M3 BPM Stage II Tuned by Mike Benvo, 6MT, Turner Test Pipes, Magnaflow Custom Catback Exhaust (Magnaflow X Pipe, secondary cat delete, Aero Resonators and Helmholtz Chambers),Vorsteiner CF Lip, Hamann Style CF rear diffuser, CF Rear Decklid Spoiler, BMW Performance Kidney Grills, CF Side Grills, OEM GTS Wheels, K&N Drop-In Filter, GP Thunder 8k Angel Eyes, Painted Reflectors.
Last edited by MikeE92M3; 10-11-2012 at 09:45 AM.. |
09-04-2012, 09:12 AM | #3 |
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Yes, the whole muffler assembly is what it looks like when you purchase it. I think the tips fit perfectly.
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2008 (07/08) E92 M3 BPM Stage II Tuned by Mike Benvo, 6MT, Turner Test Pipes, Magnaflow Custom Catback Exhaust (Magnaflow X Pipe, secondary cat delete, Aero Resonators and Helmholtz Chambers),Vorsteiner CF Lip, Hamann Style CF rear diffuser, CF Rear Decklid Spoiler, BMW Performance Kidney Grills, CF Side Grills, OEM GTS Wheels, K&N Drop-In Filter, GP Thunder 8k Angel Eyes, Painted Reflectors.
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09-04-2012, 10:59 AM | #6 |
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Yeah this is my minor issue right now. Granted, I came from a completely catless, resonator-less Nismo 350z and this is quiet as hell compared to it, but I know the drone is there. I am looking at swapping out the OEM resonators with the Aero AR25 and replacing the X pipe with something more high quality. I think this combination will quiet down the drone to an almost nonexistent amount.
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2008 (07/08) E92 M3 BPM Stage II Tuned by Mike Benvo, 6MT, Turner Test Pipes, Magnaflow Custom Catback Exhaust (Magnaflow X Pipe, secondary cat delete, Aero Resonators and Helmholtz Chambers),Vorsteiner CF Lip, Hamann Style CF rear diffuser, CF Rear Decklid Spoiler, BMW Performance Kidney Grills, CF Side Grills, OEM GTS Wheels, K&N Drop-In Filter, GP Thunder 8k Angel Eyes, Painted Reflectors.
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09-04-2012, 11:07 AM | #7 | |
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2008 (07/08) E92 M3 BPM Stage II Tuned by Mike Benvo, 6MT, Turner Test Pipes, Magnaflow Custom Catback Exhaust (Magnaflow X Pipe, secondary cat delete, Aero Resonators and Helmholtz Chambers),Vorsteiner CF Lip, Hamann Style CF rear diffuser, CF Rear Decklid Spoiler, BMW Performance Kidney Grills, CF Side Grills, OEM GTS Wheels, K&N Drop-In Filter, GP Thunder 8k Angel Eyes, Painted Reflectors.
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09-04-2012, 11:44 AM | #8 |
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Sounds a lot different to the full cat-back system. The full cat back system is much deeper in tone. The full system has a pretty loud drone at cruising speed (2500 - 3500 in 6MT). I took mine off after a few months. I keep meaning to sell it!
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09-04-2012, 11:47 AM | #9 |
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That's exactly where I have the drone too. If I go into a lower gear and go above 4k RPMS, its gone and its all normal sound to me. Must be just the "nature" of these mufflers. Hmm.
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2008 (07/08) E92 M3 BPM Stage II Tuned by Mike Benvo, 6MT, Turner Test Pipes, Magnaflow Custom Catback Exhaust (Magnaflow X Pipe, secondary cat delete, Aero Resonators and Helmholtz Chambers),Vorsteiner CF Lip, Hamann Style CF rear diffuser, CF Rear Decklid Spoiler, BMW Performance Kidney Grills, CF Side Grills, OEM GTS Wheels, K&N Drop-In Filter, GP Thunder 8k Angel Eyes, Painted Reflectors.
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09-04-2012, 11:50 AM | #10 | |
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09-04-2012, 11:55 AM | #11 | |
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Dont get me wrong, I run Magnaflows on other cars and they are a good option but compared to other systems specific to the M3 that cost an arm and a leg you are not going to get the same forgiveness with drone, rasp ect |
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09-04-2012, 12:08 PM | #12 | |
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2008 (07/08) E92 M3 BPM Stage II Tuned by Mike Benvo, 6MT, Turner Test Pipes, Magnaflow Custom Catback Exhaust (Magnaflow X Pipe, secondary cat delete, Aero Resonators and Helmholtz Chambers),Vorsteiner CF Lip, Hamann Style CF rear diffuser, CF Rear Decklid Spoiler, BMW Performance Kidney Grills, CF Side Grills, OEM GTS Wheels, K&N Drop-In Filter, GP Thunder 8k Angel Eyes, Painted Reflectors.
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09-04-2012, 12:13 PM | #13 |
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And nonethless, my previous car, a 2008 Nismo Z, was by far the most awesome sounding vehicle I have ever heard, and I used off the shelf parts--I used generic test pipes, a magnaflow x pipe, and HKS mufflers with the stock Nismo Tips. Saved about 3k from an aftermarket exhaust and it sounded 100 times better. It droned a little bit (the interiors of the Z33 Z's are thin plastic), but that thing sounded fawking nasty using what I already had available. And it looked damn good too!
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2008 (07/08) E92 M3 BPM Stage II Tuned by Mike Benvo, 6MT, Turner Test Pipes, Magnaflow Custom Catback Exhaust (Magnaflow X Pipe, secondary cat delete, Aero Resonators and Helmholtz Chambers),Vorsteiner CF Lip, Hamann Style CF rear diffuser, CF Rear Decklid Spoiler, BMW Performance Kidney Grills, CF Side Grills, OEM GTS Wheels, K&N Drop-In Filter, GP Thunder 8k Angel Eyes, Painted Reflectors.
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09-04-2012, 01:06 PM | #15 |
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Haha ain't that the truth! From what I noticed, when I am cruising on the highway, they don't attract any attention at all, which leads me to believe that they are just as quiet as stock minus the slight drone in the cabin. When I am cruising around town or taking off from a stop, people casually look over--but its more of like a "checking it out" look over as opposed to a .
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2008 (07/08) E92 M3 BPM Stage II Tuned by Mike Benvo, 6MT, Turner Test Pipes, Magnaflow Custom Catback Exhaust (Magnaflow X Pipe, secondary cat delete, Aero Resonators and Helmholtz Chambers),Vorsteiner CF Lip, Hamann Style CF rear diffuser, CF Rear Decklid Spoiler, BMW Performance Kidney Grills, CF Side Grills, OEM GTS Wheels, K&N Drop-In Filter, GP Thunder 8k Angel Eyes, Painted Reflectors.
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09-04-2012, 02:02 PM | #16 | |
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sorry to say but most mufflers are not made for the m3. they are generic mufflers used on our setup tailored to fit. OP you read my mind; thanks for doing this first. I have had a bunch of setups and right now am running a Gintani Race, but have been eyeing these 14816 for a while. They look much better than the 815 single wall. I'm gonna order a set now and weld em up!! |
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09-04-2012, 02:11 PM | #18 | |
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The internal construction of the mufflers is what limits drone anyways ..as I said I run Magnaflows on my daily .. it drones..but I dont really care..would I want that on my M3?..probably not. |
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09-04-2012, 02:11 PM | #19 | |
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edit: nm see it now Last edited by m3an; 09-04-2012 at 02:19 PM.. |
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09-04-2012, 02:15 PM | #20 | |
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09-04-2012, 02:37 PM | #21 |
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Here is a fix that might interest you. You can T off a connection before the mufflers and weld in a resonator and then weld it shut. It should eliminate almost all of the drone. Since a T connection will not flow much exhaust gas it should not limit flow.
Like this pic. HKS did this to the 350Z |
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09-04-2012, 02:45 PM | #22 | |
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2008 (07/08) E92 M3 BPM Stage II Tuned by Mike Benvo, 6MT, Turner Test Pipes, Magnaflow Custom Catback Exhaust (Magnaflow X Pipe, secondary cat delete, Aero Resonators and Helmholtz Chambers),Vorsteiner CF Lip, Hamann Style CF rear diffuser, CF Rear Decklid Spoiler, BMW Performance Kidney Grills, CF Side Grills, OEM GTS Wheels, K&N Drop-In Filter, GP Thunder 8k Angel Eyes, Painted Reflectors.
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