Thank you for the advice.

with stock muffler you can pass sound if you rout the side muffler to close the valve as I have demonstrated on my post - but do open the valve again after sound station so the excess back pressure do not damage your exhaust or engine

I had a feeling you might say that. What if I re-installed the stock muffler on my 2014 GT3? Is there anything I could do or modify to pass sound then? Thanks.

I don;t think you will be able to pass sound at LS with center bypass

Hi Mike,

I read your 3 second sound buster modification thread, but it was a few years old so I wanted to check with you... I have a 2014 GT3 with a sharkwerks bypass exhaust and want to track the car at Leguna Seca. Will your modification allow me to pass sound? Any advice would be appreciated. Thanks.
Chris

Hi Mike
I have a buddy of mine who lives in Chico and recently spun his 993 and hit a curb breaking some rear suspension parts. We need to get him a good corner balance alignment. Can you recommend a shop in Sac or your area. I'll try and make Thunderhill this year, Its a bit of a drive from Seattle.
I like your PSE fix. My GT3 is sitting in port in SD and when I get it I will see if it will work on a 991.
Thanks
Ed

Hi Stenoxp

Sorry I don't have the measurement or technical drawing

Hello,
I apologize for the inconvenience and for the bad English, I would like to ask you a great courtesy, I'm building a scale model of the 911 GT3 and I saw that she owns lever sequential gearbox that I should reply, I ask if he can give me the measures about it, or better, if you have the technical drawings with these measures.
My e-mail is stenoxp@gmail.com

the lever is

They are OEM GM part from GM warehouse

Ok, thanks. Do you remember where you bought them from?