12!! Lol It seriously is as loud as the Le Mans cars. The sound is so sweet. When I left off the gas it makes a nice crackle sound. I honestly couldn't imagine a better sound for these cars. People come up to me all the time and tell me how they love the sound. The best way to explain the sound is liek a lion roaring...no joke!!

 

My car had ebay muffler bypass pipes on it when I bought it... You could hear me from miles away. It made my head hurt. Is this that loud?!

 

Looks like there is one more way of doing it ..

 

No, it's normal under driving and at idle. It really comes into plat under hard throttle at 3k rpm.

 

This isn't the same thing. The PSE/Gundo hack is what I posted because it takes part of the flow out before it goes through the muffler.

 

The one he posted is gundo.
Fister d mod is the one between in and outtake.

 

Beg to differ.


http://www.renntrack.com/forums/show...UNDO-HACK-quot


PSE, Gundo, and Fisters D are all the same.


http://fdmotorsports.net/wp-content/...6-mufflers.jpg

 

From my observation, I found PSE "Hack" is referred to opening up the third outlet to the outbound pipe. Fister is generally referred to attaching inlet and outlet pipe together with 1.5,1.75.2" piping depending on sound preference.
The term "Gundo" has been used loosely and referred to both styles.

Note that the "PSE Hack" is quieter than the Fister mod and also the real PSE system as there is a misconception that the internal chambers/baffles are the same. I have the real PSE and heard the "PSE Hack" and they sound different.

 

Go to my first link.

 

First link is incorrect. PSE hack has always been to tap the third closed port in the muffler and NOT tie in the two existing pipes together as that link mentions. The real factory PSE taps into the third port. I personally have had both 997 and 996 factory oem PSE's before so I think I sorta know what PSE is.