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billydeakins's Avatar
 
Join Date: Aug 2014
Location: Costa Mesa, CA
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M&K 1 in/2 out GT3 exhuaust sound clip request

Hey all....thinking about making a switch to an M&K 1 in/2 out GT3 exhaust and wondered if anyone here is running it? I'm in CA so need to keep the cat on so was curious of the sound with cat. When I bought the car, it had Bursch headers to a 2 in/2 out M&K GT3 exhaust and it sounded great, but was a little on the drone-y side. I swapped that out with a new cat and Dansk stainless steel sport exhaust which is great, but definitely not the most aggressive sounding.

If anyone is running one with a cat, I'd really appreciate a little video of how it sounds and any feedback on if it's still got a lot of drone or not.

Thanks in advance!

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1989 911 Carrera 3.2, Guards Red
Old 04-23-2018, 12:52 PM
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Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
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Dual inlets combined with dual outlets suffer the possibility of drone more than single inlet mufflers. The sound level and basic tone of the MKM73 single inlet GT3-look muffler is set by whatever is up stream, be it cat bypass, premuffler, or catalytic converter. Volume goes down in that order. We have revised the design on the MKM73 to include slip-on tailpipes which gives the option for longer pipes or built in baffles. You can tailor the look and sound to your liking.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 04-24-2018, 05:29 AM
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Great!! Thanks for the info Rarly!
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1989 911 Carrera 3.2, Guards Red
Old 04-24-2018, 09:08 PM
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Bumping this to the top! I'm looking for a video! Better yet, if someone has a GT3 muffler set up in southern california and wants a free lunch/beer, I'd love to hear in person.
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1986 911
1982 W123 300D
2000 986 S
Old 05-08-2018, 01:48 PM
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86FlatSix
 
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Join Date: Mar 2012
Location: from the streets of San Francisco
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I have a MK 1 in 2 out GT3 style on my 86. I love how it sounds but it doesn't do justice or get the exact sound when video is taken. I just noticed that I lost a bit of low end torque but was resolved when I put some quiet riot baffles.

I'll let you know if I will be in LA soon as I normally drive it from SF to LA but during colder months as my AC sucks. I will try to get a sound bite most probably in a few days or a week as I am also waiting for my fister mufflers and sharkwerks xpipe for my 997.2. Since I am already there at the shop I might as well get a sound bite for both ehehehe.
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74 BMW 2002 (rust rocket)
86 911 Coupe (weekend warrior)
09 997.2 C2 (semi-daily)
Old 05-10-2018, 09:00 PM
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82 911 SC - Ancora Imparo
 
Join Date: Jan 2018
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Anyone in the Tampa, FL, area with an M&K GT3 exhaust? Or anywhere on the gulf side of FL? I’d love to buy you a beer/coffee just to hear it!
Old 06-09-2018, 05:15 PM
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cycling has-been
 
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Join Date: Sep 2004
Location: Jersey Shore
Posts: 7,238
without cat.
Bill K

https://youtu.be/ZkN0fu4P_FI

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73 911T MFI, 76 912E, 77 Turbo Carrera
Old 06-10-2018, 09:32 AM
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