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Join Date: Feb 2007
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WTB Wastegate Muffler

Looking for a wastegate muffler for my 930 longhood project. Anyone got one they are not using?

Thanks,
Scott
please reply to: aerocrosby@comcast.net or call: (916) 773-7749
Old 05-19-2008, 06:46 AM
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DING!

PM me - mine'll be off next week or so when my Rarlyl8 system arrives. It's in perfect shape.
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Old 05-19-2008, 07:02 AM
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Bump - I'm still looking!
Old 05-22-2008, 12:44 PM
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May I ask why you want/need a W/G muffler?
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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 05-22-2008, 06:25 PM
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Maybe I need to be educated on just what to expect if I don't use one. I'm doing a somewhat stealthy, early 930 engined '73 coupe. When I hear about the "Gates of Hell" opening when the unmuffled wastegate dumps - what does that mean?
Like a straight piped Harley? Worse? I have zero 930 experience. Please let me know!

Scott
Old 05-22-2008, 06:59 PM
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It is not possible to make a 930 as loud or nasty sounding as a Harley, so you can lower that baseline.
The open waste gate is loud, simply because it is an open exhaust, but the sound produced is vary "airy". By that I mean it sounds like the air volume whoosh of a jet taking off. You can difuse the sound a bit by pointing the dump pipe toward the ground under the engine. The sound level stays up in the cockpit but is reduced to the others around you.

If you truely want stealth get a stock early US muffler that has an integrated W/G pipe. All of the exhaust must go throught the muffler with that design. It will only work with the waste gate in the stock location.
.
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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 05-23-2008, 06:25 AM
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I like the rear exit 934 style wg pipe that I got from Brian (RarlyL8). I find that it not only looks cool (IMO), it takes the in-cabin whooshing sound volume down a bit where the exhaust is redirected towards the windshield of the WRX I just dusted. I previously had a GHL wg pipe pointed down, like Brian described, and it was loud but not bothersome- this new one isn't quite as loud and has a nicer sound to it.

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Last edited by jay71; 05-24-2008 at 06:42 AM..
Old 05-24-2008, 01:34 AM
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