07-09-2014, 10:05 AM
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#21
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Registered User
Join Date: Apr 2014
Location: Chicago
Posts: 329
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Anyone ever try welding a balancer pipe to these TopSpeed mufflers? That might bring the drone down a bit.
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'99 Porsche Boxster 986 - weekend car
'04 BMW 645ci e63 - daily driver
'98 BMW 528i e39 - dog carrier
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07-09-2014, 10:23 AM
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#22
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Registered User
Join Date: Jun 2012
Location: Bedford, TX
Posts: 2,708
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Quote:
Originally Posted by all_mota
Anyone ever try welding a balancer pipe to these TopSpeed mufflers? That might bring the drone down a bit.
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Just use the easy seal clamps, simpler and made a big difference for me.
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2001 Boxster S Lapis Blue
TS Cat Bypass Pipes and exhaust
iPad Mini Dash Install
DEPO Tail Lights
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07-09-2014, 10:56 AM
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#23
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Registered User
Join Date: Apr 2014
Location: Chicago
Posts: 329
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I mean something like this(sorry for the poor illustration). A pipe maybe half the diameter or even a little smaller than half connecting the outlet pipes together. You'll notice on the more expensive brand exhausts, they tend to have balancer pipes.
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'99 Porsche Boxster 986 - weekend car
'04 BMW 645ci e63 - daily driver
'98 BMW 528i e39 - dog carrier
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07-09-2014, 07:50 PM
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#24
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Registered User
Join Date: Apr 2014
Location: New Jersey
Posts: 47
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I installed the Top Speed test pipes and the same type exhaust as Top Speed but different manufacturer this afternoon. HOLLY S__T!!!!! Love the result. The sound is incredible! Now I just hope the cops feel just as positive about it as I do.
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2000 Boxster S (986)
De-snorkeled withK&N Cold Air intake
Short Shifter 14mm spacers F&B
Secondary Cat delete
Top Speed Test pipes and Exhaust
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07-14-2014, 09:54 AM
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#25
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Registered User
Join Date: Jun 2014
Location: Whitby ontario
Posts: 126
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Are you getting any drone at all? I've heard that installing the test pipes removes the drone altogether, I might consider a set to go with the exhaust.
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Previous 2 seaters:
1975 Triumph TR7
1979 Fiat X19
1977 Lotus Esprit
Honey it's an investment!
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07-14-2014, 11:07 AM
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#26
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Registered User
Join Date: Aug 2013
Location: Bay Area
Posts: 700
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Can you post a sound clip? I know there are some on youtube, but I'm not satisfied.
Maybe someone can record a few drive-bys? I can't really gauge how it sounds on the car at a distance from the youtube vids
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07-16-2014, 12:20 PM
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#27
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Registered User
Join Date: Apr 2014
Location: New Jersey
Posts: 47
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Quote:
Originally Posted by Box4two
Are you getting any drone at all? I've heard that installing the test pipes removes the drone altogether, I might consider a set to go with the exhaust.
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No, there is virtually no drone at all. I'm not sure how the exhaust sounds without the test pipes since I had both items installed at the same time following some comments on this board. One thing I will say is that it is loud!
Just uploaded a short vid. Took this with my IPhone. the live sound is deeper.
http://youtu.be/UKGSxRLJ1wU
__________________
2000 Boxster S (986)
De-snorkeled withK&N Cold Air intake
Short Shifter 14mm spacers F&B
Secondary Cat delete
Top Speed Test pipes and Exhaust
Last edited by NJBoxster2000; 07-16-2014 at 11:20 PM.
Reason: updated with Youtube link to vid
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07-18-2014, 04:29 PM
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#28
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Registered User
Join Date: Sep 2013
Location: Fullerton/Brea, CA
Posts: 43
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Quote:
Originally Posted by NJBoxster2000
No, there is virtually no drone at all. I'm not sure how the exhaust sounds without the test pipes since I had both items installed at the same time following some comments on this board. One thing I will say is that it is loud!
Just uploaded a short vid. Took this with my IPhone. the live sound is deeper.
My Boxster exhaust - YouTube
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Sounds good...
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07-20-2014, 10:27 PM
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#29
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Registered User
Join Date: Jun 2014
Posts: 11
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Quote:
Originally Posted by all_mota
I mean something like this(sorry for the poor illustration). A pipe maybe half the diameter or even a little smaller than half connecting the outlet pipes together. You'll notice on the more expensive brand exhausts, they tend to have balancer pipes.
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I welded a pipe in just like this to attempt to cancel out some drone (the theory was that the sides would help balance each other out by being out of phase) and it made very little difference in the drone unfortunately. It did change the sound a little bit I believe which I like more, but the drone is still quite obnoxious. I'm currently debating trying the 2nd cat bypass pipes or building a quarter wave resonator to lesson the drone.
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07-21-2014, 09:32 AM
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#30
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Registered User
Join Date: Jun 2012
Location: Bedford, TX
Posts: 2,708
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Quote:
Originally Posted by baker
I welded a pipe in just like this to attempt to cancel out some drone (the theory was that the sides would help balance each other out by being out of phase) and it made very little difference in the drone unfortunately. It did change the sound a little bit I believe which I like more, but the drone is still quite obnoxious. I'm currently debating trying the 2nd cat bypass pipes or building a quarter wave resonator to lesson the drone.
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Get the cat bypass pipes and use the easy seal clamps. No drone for me.
__________________
______________________________________________
2001 Boxster S Lapis Blue
TS Cat Bypass Pipes and exhaust
iPad Mini Dash Install
DEPO Tail Lights
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07-21-2014, 11:57 AM
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#31
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Registered User
Join Date: Apr 2014
Location: Chicago
Posts: 329
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Quote:
Originally Posted by baker
I welded a pipe in just like this to attempt to cancel out some drone (the theory was that the sides would help balance each other out by being out of phase) and it made very little difference in the drone unfortunately. It did change the sound a little bit I believe which I like more, but the drone is still quite obnoxious. I'm currently debating trying the 2nd cat bypass pipes or building a quarter wave resonator to lesson the drone.
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srry it didn't help . any vids of the new exhaust sound though? Very cuious to hear how it came out.
__________________
'99 Porsche Boxster 986 - weekend car
'04 BMW 645ci e63 - daily driver
'98 BMW 528i e39 - dog carrier
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07-21-2014, 01:03 PM
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#32
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Registered User
Join Date: Sep 2013
Location: California
Posts: 466
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Quote:
Originally Posted by BruceH
Get the cat bypass pipes and use the easy seal clamps. No drone for me.
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Ditto what Bruce said
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"Blind acceptance is a sign, of stupid fools who stand in line."
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07-21-2014, 10:00 PM
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#33
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Registered User
Join Date: Jun 2014
Posts: 11
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Quote:
Originally Posted by all_mota
srry it didn't help . any vids of the new exhaust sound though? Very cuious to hear how it came out.
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No big deal, I actually welded it in a week or two back and then I just saw this thread - what a coincidence. I already had a piece of stainless that would work, so net cost: whatever power the welder drew while welding and a couple hours of my time. I'll most likely try the cat bypass pipes and let everyone know how that goes, but it's probably going to be a little while before I get that done - I'm a bit stickler about my budgets and have some more pressing items I need to buy.
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07-22-2014, 06:42 AM
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#34
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Registered User
Join Date: Apr 2014
Location: new orleans
Posts: 249
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the cat bypass pipes really do cut down on the drone. what is even better is while cruising around, you have an appreciable throaty note coming from the exhaust. there is nothing obnoxious, but a nice deep note. as an added bonus, I also get a bit of a gurgle upon lifting throttle at about 4k and above. before the deletes were installed, I was just running an obx muffler. the muffler alone was a bit louder, but the note was just lacking.
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2005 Porsche Boxster S, 2000 Porsche Boxster 2.7L Base, 2000 Mazda Miata LS Supercharged, 2010 Toyota Tacoma TRD Off Road
Previous Vehicles: 2005 Ford Mustang GT, 1986 Alfa Romeo Spider, 1971 Alfa Romeo GTV, 1999 Ford Mustang
1977 Toyota Celica GT
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