evansaero

I think it's a rod that runs long the roof behind the sunroof or it's the sunroof. Not sure, but when I hit any bumps thats what happens. I'm still trying to find a fix.

thanks I'm happy for what it cost. I would hope spending 1500 or more would get you a better sound

gota911

Scott - yes, the tips will fit. I had my 3.6 tips on the 3.4 mufflers for about 8 months, and now they are back on the modded 3.6 mufflers. Both types of mufflers have the same flange connection to hold the tips.

My 3.4L mufflers have a 2" mod pipe. I didn't measure the diameter of the 3.6 mod pipe before I installed the mufflers on the car, but it is at least 2" and could be 2.25" (which is what I originally requested).

gota911

Here is a great explination of how the stock 996 mufflers work.

http://www.youtube.com/watch?v=uZDbA...elated&search=

Here is a stock versus PSE "before" and "after" comparison.

http://www.youtube.com/watch?v=QaP1M...elated&search=

http://www.youtube.com/watch?v=3jaDB...elated&search=

ScottArizona

Hey guys, I have one more questions. Both muffler shops I visited today to inquire about this mod said they don't bend stainless steel pipe and that if they did it they would use some sort of "aluminized tubing." My guess is that I shouldn't do that if everyone thus far has used ss. Any comments? Has anyone used anything other than stainless steel for the bypass pipe? Thanks.

ArneeA

My muffler guy had SS pipes that were already mandrel bent. I suggest going to a different shop. Ask them if they have pipes that are already mandrel bent.

gota911

Stick with SS pipes.

ScottArizona

o.k. I just got done calling 8-10 muffler shops in the Phoenix area and not a single one can bend stainless steel pipe. Further, none of them could even recommend a local shop in the Phoenix area that could do it. Now, one or two shops told me the type of material should not in any way affect the sound, and that this would be controlled only by the lenghth and diamter of the pipe. I'm contemplating trying this mod without stainless steel pipe as the whole point of this project was to get it done cheaply. Any other suggestions? Other than the fact that the real pse uses stainless steel, any other reason to stick with ss?

1999Porsche911

Just use regular exhaust pipe and put a couple of coats of exhaust paint on the outside,. It will last longer than many other things on your car.

Chuck Jones

ScottArizona: I just got a set of the 3.6L mufflers off eBay...and fisterD is ordering up the 90 degree stainless in 2.25 inch tubing from Burns. You might give him a PM and he'll give you all the necessary details on how/where to get "the right stuff".

If these turn out anywhere like the folks on Rennlist are saying they sound, I'll may be putting my Schnells up for sale. The downside is that the OEM mufflers are a lot heavier than the Schnells.

ArneeA

Do your Schnell cans drone? What's the reason for you wanting to try the PSE-mod setup?

Chuck Jones

No the Schnell's don't drone (resonate) at all. You really don't hear them at all unless you're accelerating...it's just that I thought I'd try something that had a bit more of a throaty sound to it. The Schnell's are actually quite nice and the fitment (installed by SharkWerks) was dead on with no install issues. The Schnells are also a whole lot lighter than a modded 3.6L muffler.

I figure that if I don't like them I can put the Schnells back on....but most of the comments I've heard here are raves about this mod. If I do like them then I will off the Schnells.

JDSStudios

Yes I have (2002 996 C4S).
I got it done right at Pfaff Porsche.
They have one guy - Mike McCarthy that does this Mod.

They wanted to put in a 1.5" jpipe, however I requested larger,
and they put in 1.75". Mike said that over 1.75" would be too much for the bend
in the SS pipe.

After reading this thread, I would've insisted on the 2" or more.

I also got a print out of Horse Power and Torque before and after, using GTech.

It shows an increase of 16 H.P., and 21 Ft-LBs Torque.

I did the Mod for the sound, so the extra H.P. and extra Torque was
a bonus.

If you are interested let me know, and I will post the graphs they gave me.

Also, hi everybody! - my first post in here.
John

**EDIT: I forgot to mention, I also put in 997S headers (Porsche dealer had an extra pair laying around).
This gives you a better picture in case you are wondering about the HP and Torque gains.
The service manager suggested a GIAC flashed chip if I wanted 4 or 5 more HP, but for the price it's not worth it.

jlx

JDS welcome.
did they do the mk 1 or mk 2 version ?
having done this mod myself at home I don't get the "over 1.75" is the too much bend stuff". thats just pure bull sh **. Reminds me of the muffler guy that told a member he could only cut out a 1 1/4" hole in the cap.....

JDSStudios

Thanks.
This was mk 2.
I did read somewhere in this thread about someone else having a problem
in properly bending a larger than 1.5" (in this particular case) SS pipe.

Mike also mentioned it would be harder to fit in
due to space - I also don't know why they would have a problem with
2" or larger, however they sounded genuine and trustworthy individuals.

I really love the sound, specially when the vario cam opens
at around 4000 RPM. However, I would love it louder (not too loud)

If below 4000 RPM, it is just deper, and slightly louder than
the stock volume, which is ideal for the neighborhood and cops.

Oh and did I mention that I love how the sound opens beyond 4k?
John

ML

John:

Welcome and thanks for the info. Can I dare ask how much the dealer charged you?