08-31-2007, 08:00 PM
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#1
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Registered User
Join Date: Aug 2007
Location: Edmonton, Alberta, CANADA
Posts: 68
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LOUD Boxster causing headaches
I have had my first porsche for only a few weeks now but from day one i have been unsure about the sound inside the cockpit and outside from the muffs. It is loud between 2000-3000RPM. Like annoying loud. Sounds great before 2K and after 3K. I was at the dealership paying my monthly dues and the parts guy noticed the muffler, said it looked funky (not original). I didn't follow up on his comment because i was distracted by a beauty in the showroom. Anyways i borrowed a digital recorder and have posted links to 2 wav files. If your speakers have good bass i think you will get the jist of what it sounds like inside. I don't think it's normal and i think i may have a crack somewhere or need to replace the exhaust. I will snap some photos and post them as well. Any advise?
Wav File 1 - Top Down
Wav File 2 - Top Up
Thanks!
Last edited by Chris_Craft; 08-31-2007 at 08:24 PM.
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08-31-2007, 09:35 PM
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#2
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Registered User
Join Date: Sep 2006
Location: California
Posts: 713
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Sounds like you have an aftermarket exhaust setup on there from the previous owner...it's got quite a bit of droning to it. I've got a stock muffler for sale if you want it... PM me if you do.
__________________
http://farm4.static.flickr.com/3420/...90927559_o.jpg
Some stuff for sale: M030 S 24mm front sway bar, M030 base 19.6mm rear sway bar, 996 GT3 OEM Porsche Motorsport front strut mounts monoball "camber plates"
WTB: looking for some 5-7mm spacers with extended bolts
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08-31-2007, 10:30 PM
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#3
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Registered User
Join Date: Sep 2006
Location: Los Angeles
Posts: 373
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Aftermarket exhausts can resonate bad around one rev range (it's actually kinda common). Go to stock if you want, that will get rid of it.
-David
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1995 Silverado V8 - Green/ Tan (FOR SALE)
2000 Boxster S - Ocean Blue/ Graphite Grey
2002 GSXR750 - Blue/White
http://www.darkoven.com/sig.jpg
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09-01-2007, 04:39 AM
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#4
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Registered User
Join Date: Aug 2005
Location: Sanford NC
Posts: 2,537
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OEM mufflers are cheap and available
on auction sites and craigslist. And you should be able to sell yours for more than it costs. Any muffler shop can install it, you don't need a dealer or Porsche specialist. Just make sure you have new bolts and gaskets.
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09-01-2007, 11:07 AM
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#5
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Registered User
Join Date: Dec 2006
Location: Austin, TX
Posts: 939
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Shoot, get a stock muffler, they're easy to swap.
I can say, a base Boxster's exhaust is not very loud at all. I think someday I'll try to find an S muffler and swap for my stock one... get a little more out of it, but not too much!
__________________
2001 Boxster - Grey on Grey
1969 911T Targa - 'Stinky'
http://www.zoto.com/frayadjacent/img...f27a-4a399.jpg <---- my car. ^ crap I post.
"The existence of the flamethrower is evidence that someone, somewhere once said 'I want to set those people over there on fire, but I don't want to have to walk over there to do it.'"
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09-01-2007, 11:37 AM
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#6
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Registered User
Join Date: Sep 2006
Location: California
Posts: 713
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Quote:
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Originally Posted by FrayAdjacent
Shoot, get a stock muffler, they're easy to swap.
I can say, a base Boxster's exhaust is not very loud at all. I think someday I'll try to find an S muffler and swap for my stock one... get a little more out of it, but not too much!
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I've got a set of exhaust and headers from a '02 "S" for sale if you're interested. PM me if you are.
__________________
http://farm4.static.flickr.com/3420/...90927559_o.jpg
Some stuff for sale: M030 S 24mm front sway bar, M030 base 19.6mm rear sway bar, 996 GT3 OEM Porsche Motorsport front strut mounts monoball "camber plates"
WTB: looking for some 5-7mm spacers with extended bolts
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09-01-2007, 12:28 PM
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#7
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Registered User
Join Date: Jul 2004
Location: Houston, Texas
Posts: 7,243
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Should you put a stock muffler back on the car, don't think the aftermarket exhaust isn't worth selling. They are typically $600 or far more new. Someone will pay you hansomely for it. Actually, you'll probably make money on the deal swapping it for a stock muffler, including the cost of installation.
The sound files led me to believe your car is a tiptronic. If so, you can aleviate some of the droning noise by shifting manually and running it up to 4k before you shift as there's about a 1k drop between gears. This will keep you above the resonance area.
I was bothered by my aftermarket muffler's resonance between 2-3k for a short time before I got used to it. Now I can't live without it. However, it didn't give me headaches.
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09-01-2007, 01:14 PM
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#8
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Registered User
Join Date: Aug 2007
Location: Edmonton, Alberta, CANADA
Posts: 68
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Pictures...i think it's got to go.
Last edited by Chris_Craft; 09-01-2007 at 01:16 PM.
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09-01-2007, 01:29 PM
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#9
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Registered User
Join Date: Sep 2006
Location: California
Posts: 713
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Quote:
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Originally Posted by Chris_Craft
Pictures...i think it's got to go.
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Correct me if I'm wrong, but that looks like a GHL exhaust to me... which is pretty well known as one of the loudest boxster aftermarket exhausts.
__________________
http://farm4.static.flickr.com/3420/...90927559_o.jpg
Some stuff for sale: M030 S 24mm front sway bar, M030 base 19.6mm rear sway bar, 996 GT3 OEM Porsche Motorsport front strut mounts monoball "camber plates"
WTB: looking for some 5-7mm spacers with extended bolts
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09-01-2007, 02:08 PM
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#10
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Guest
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I concur. GHL by the looks of it, or a very well made custom job.
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09-01-2007, 02:15 PM
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#11
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Registered User
Join Date: Dec 2006
Location: Austin, TX
Posts: 939
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Quote:
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Originally Posted by chaudanova
I've got a set of exhaust and headers from a '02 "S" for sale if you're interested. PM me if you are.
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I'm not quite in the market for it yet... Gotta worry about getting the top replaced, and then clean up the interior. Probably won't be until next year. Thanks for the offer tho! I'll probably just post here and find a muffler that someone's swapped out for an aftermarket.
__________________
2001 Boxster - Grey on Grey
1969 911T Targa - 'Stinky'
http://www.zoto.com/frayadjacent/img...f27a-4a399.jpg <---- my car. ^ crap I post.
"The existence of the flamethrower is evidence that someone, somewhere once said 'I want to set those people over there on fire, but I don't want to have to walk over there to do it.'"
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09-01-2007, 06:03 PM
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#12
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Registered User
Join Date: Jul 2005
Location: Preston, CT
Posts: 100
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Looks like a GHL to me too. If that is the case, they sell for $1K new and you could easily get 600 or 700 for it used. Just buy some metal polish and shine it up nice and put it in the classified section for sale.
Steve
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09-25-2007, 07:29 PM
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#13
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Registered User
Join Date: Aug 2007
Location: Edmonton, Alberta, CANADA
Posts: 68
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Drove around today with 2 sound meters. Top up, windows up. The more professional one hit 96db. The cheaper one hit 110db. Both at 2500RPM. Definatley not safe levels for daily driving.
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09-25-2007, 09:18 PM
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#14
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Registered User
Join Date: Mar 2007
Location: Houston
Posts: 49
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If I were wnting to replace the aftermarket exhaust you have I would definately go with the 02 Boxster S if the gentleman here will cut you a fair deal this is what I have on my 2002 Boxster S and I absolutely love the sound...by no means annoying but still deep and throaty I couldnt ask for a better sounding non annoying system....plus you could probably make money selling your aftermarket setup
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09-25-2007, 09:47 PM
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#15
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Registered User
Join Date: Jul 2006
Location: lex
Posts: 213
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Thats a GHL... and your car has seen a lot of Canadian winters by the looks of the underbody
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