12-08-2016, 08:37 AM
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#41
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Registered User
Join Date: Sep 2008
Location: Agoura Hills (LA) So.Cal.
Posts: 1,574
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Quote:
Originally Posted by Boxtaboy
The early PSE had exterior shiny "sebring" style pipes that you could easily see from the rear. If you didn't get this option from the factory, many would just use metal cable wire to keep the valves open all the time, and this is fine as I'm not sure why anyone would want to silence the muffler, as even in the loud position, it wasn't all that loud.
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The default for the PSE is for the valves to be open, louder. If you wire the valve plungers down you will be closing the valves making it quieter. I have verified this with a cable camera. If you add a PSE to you Boxster just leave it as it is for a louder note. Again, IMHO, the PSE look great but are lacking in sound.
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1995 Porsche C4 Cab
2016 BMW M2, 6 Speed LBB - ED 7/2016
1997 993 Cab - Sold; 1997 993 Turbo - Sold
2001 Boxster S - Original Owner - 30K Miles -SOLD
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12-08-2016, 08:57 AM
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#42
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07 Carrera S Cab
Join Date: Nov 2005
Location: New Jersey
Posts: 2,273
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Quote:
Originally Posted by Chuck W.
The default for the PSE is for the valves to be open, louder. If you wire the valve plungers down you will be closing the valves making it quieter. I have verified this with a cable camera. If you add a PSE to you Boxster just leave it as it is for a louder note. Again, IMHO, the PSE look great but are lacking in sound.
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I could've sworn I read a post before on Renntech where a guy wired his PSE valves so that they wouldn't close, but I defer to you since you have one. 
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Current: 07 Carrera S Cab in Midnight Blue
Previous: 01 Boxster in Arctic Silver, 86 944 in Guards Red
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12-08-2016, 02:59 PM
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#43
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Registered User
Join Date: Sep 2016
Location: Livermore California
Posts: 50
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Quote:
Originally Posted by Chuck W.
The default for the PSE is for the valves to be open, louder. If you wire the valve plungers down you will be closing the valves making it quieter. I have verified this with a cable camera. If you add a PSE to you Boxster just leave it as it is for a louder note. Again, IMHO, the PSE look great but are lacking in sound.
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Then I definitely need a new muffler. This thing is quieter than my FJ. I run around with a bunch of air cooled 911's and I cant even tell if my engine is running or not without looking at the tach!
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02 Red S. 4th owner 198k miles , now 225k miles and still going strong.
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12-08-2016, 03:04 PM
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#44
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Custom User Title Here
Join Date: Mar 2012
Location: Ft. Leonard Wood
Posts: 6,164
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Quote:
Originally Posted by rczap
Then I definitely need a new muffler. This thing is quieter than my FJ. I run around with a bunch of air cooled 911's and I cant even tell if my engine is running or not without looking at the tach!
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Something is wrong with your valves (either stuck or getting constant vacuum).
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12-08-2016, 05:20 PM
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#45
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Registered User
Join Date: Sep 2016
Location: Livermore California
Posts: 50
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Quote:
Originally Posted by particlewave
Something is wrong with your valves (either stuck or getting constant vacuum).
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Thanks, now i have something to do tomorrow
Sent from my SM-G920V using Tapatalk
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02 Red S. 4th owner 198k miles , now 225k miles and still going strong.
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12-08-2016, 06:13 PM
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#46
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Registered User
Join Date: Dec 2015
Location: Denver
Posts: 866
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Quote:
Originally Posted by particlewave
Keep in mind that there is a lot more involved with installing a PSE than just swapping mufflers.  |
Care to expand on the topic?
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5280 Cruising @High Altitude
Seal Gray & K&N Filter
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12-08-2016, 06:17 PM
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#47
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Registered User
Join Date: Dec 2015
Location: Denver
Posts: 866
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Quote:
Originally Posted by Coaster
That's if you want the button and all the connections, right? The valves are normally open so you could install the muffler and leave it in the open condition full time.
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This advice could've saved me concerns on a PSE months ago; I'll keep that in mind in my next opportunity for a PSE
Thanks!
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5280 Cruising @High Altitude
Seal Gray & K&N Filter
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12-08-2016, 06:51 PM
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#48
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Custom User Title Here
Join Date: Mar 2012
Location: Ft. Leonard Wood
Posts: 6,164
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Quote:
Originally Posted by Ciao
Care to expand on the topic?
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If you want a PSE system, that requires the control system or a dash switch, wiring and vacuum lines. If you're only interested in the increase in sound provided by the bypass pipes, why spend close to or more than $1000?
Better to just buy the $100 bypass pipes in the link I provided and pay a welder or exhaust shop $50 to weld them on for you.
Last edited by particlewave; 12-08-2016 at 07:07 PM.
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12-09-2016, 08:26 AM
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#49
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Registered User
Join Date: Feb 2016
Location: New England
Posts: 296
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Quote:
Originally Posted by particlewave
If you want a PSE system, that requires the control system or a dash switch, wiring and vacuum lines. If you're only interested in the increase in sound provided by the bypass pipes, why spend close to or more than $1000?
Better to just buy the $100 bypass pipes in the link I provided and pay a welder or exhaust shop $50 to weld them on for you. |
+1 on the bypass pipes. I used the Pedro method.
Awesome sound when you get on the throttle. However, I'm not crazy about the sound at low rpm. Not sure how to describe it...sounds a little too much like an old Rambler with a blown out muffler. I think the PSE solves that issue with the valving.
If I had to do it all over again, I would just send it off to Fister and have them do it.
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12-09-2016, 08:35 AM
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#50
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07 Carrera S Cab
Join Date: Nov 2005
Location: New Jersey
Posts: 2,273
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Quote:
Originally Posted by Need_for_speed
+1 on the bypass pipes. I used the Pedro method.
Awesome sound when you get on the throttle. However, I'm not crazy about the sound at low rpm. Not sure how to describe it...sounds a little too much like an old Rambler with a blown out muffler. I think the PSE solves that issue with the valving.
If I had to do it all over again, I would just send it off to Fister and have them do it.
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Yes, Pedro hacked PSEs at idle sound like you have a broken muffler. The real PSEs don't do this for some reason. Also, I think the small pipes used to do the hack, if left visible from the rear, look like plumbing pipe not really fitting for a Porsche. Does sound much better at throttle though.
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Current: 07 Carrera S Cab in Midnight Blue
Previous: 01 Boxster in Arctic Silver, 86 944 in Guards Red
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12-09-2016, 08:42 AM
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#51
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Custom User Title Here
Join Date: Mar 2012
Location: Ft. Leonard Wood
Posts: 6,164
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Bypass pipe diameter is a factor.
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12-09-2016, 08:56 AM
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#52
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Registered User
Join Date: Feb 2016
Location: New England
Posts: 296
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I used a larger pipe than Pedro, 1.5 inch -- much better appearance. Then I had my shop ceramic coat the whole catback assembly.
Fister does an additional modification to their retrofits which resolves the broken muffler sound issue at low RPMs. Not sure what they do...suspect they weld in a baffle at some point.
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12-09-2016, 01:58 PM
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#53
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Registered User
Join Date: Nov 2015
Location: South Wales, UK
Posts: 852
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Quote:
Originally Posted by Need_for_speed
I used a larger pipe than Pedro, 1.5 inch -- much better appearance. Then I had my shop ceramic coat the whole catback assembly.
Fister does an additional modification to their retrofits which resolves the broken muffler sound issue at low RPMs. Not sure what they do...suspect they weld in a baffle at some point.
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That's why your sound doesn't sound great at low revs. Mine has 1" pipes and the sound is very refined. Sounds quite close to a 981 with a sports exhaust - my boss has one.
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Porsche Boxster S Type 986
Bi-xenon Headlight Upgrade | 987 S 18" Anthracite Alloys | Android Head Unit | 5000k 55w HID's | 5000k Cree DRL's | 5000k Cree number plate lights | Cree LED Indicators | One-touch roof operation | Bypass exhaust pipes | Parking sensors | Ambient footwell lighting
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12-10-2016, 07:52 AM
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#54
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Registered User
Join Date: Sep 2008
Location: Agoura Hills (LA) So.Cal.
Posts: 1,574
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Quote:
Originally Posted by Boxtaboy
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Thanks for posting that. I have always wondered about the switch.
__________________
1995 Porsche C4 Cab
2016 BMW M2, 6 Speed LBB - ED 7/2016
1997 993 Cab - Sold; 1997 993 Turbo - Sold
2001 Boxster S - Original Owner - 30K Miles -SOLD
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12-11-2016, 02:15 PM
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#55
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Registered User
Join Date: Feb 2016
Location: SE USA
Posts: 322
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Anyone seen a pipe bypass done on a base single tip exhaust? Where would you weld the pipes to make them look even half way decent?
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12-11-2016, 02:27 PM
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#56
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Custom User Title Here
Join Date: Mar 2012
Location: Ft. Leonard Wood
Posts: 6,164
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Quote:
Originally Posted by Jgkram
Anyone seen a pipe bypass done on a base single tip exhaust? Where would you weld the pipes to make them look even half way decent?
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Do a google image search for "Porsche 986 muffler bypass". Tons of pictures and yes, it looks fine.
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12-11-2016, 02:49 PM
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#57
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Registered User
Join Date: Sep 2008
Location: Agoura Hills (LA) So.Cal.
Posts: 1,574
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Quote:
Originally Posted by Jgkram
Anyone seen a pipe bypass done on a base single tip exhaust? Where would you weld the pipes to make them look even half way decent?
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Quote:
Originally Posted by particlewave
Do a google image search for "Porsche 986 muffler bypass". Tons of pictures and yes, it looks fine. |
Like this.....
__________________
1995 Porsche C4 Cab
2016 BMW M2, 6 Speed LBB - ED 7/2016
1997 993 Cab - Sold; 1997 993 Turbo - Sold
2001 Boxster S - Original Owner - 30K Miles -SOLD
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