J-pipe, or j-bend exhaust

[CFster]

Does anyone have any experience with this? Apparently a j-shaped pipe coming off the exhaust with a capped end reduces drone significantly. Exhaust can't travel into the pipe, because there's no exit, but sound waves will. Once they hit the cap they're bounced back in an inverse sound wave to the original, thus canceling each other out.

I believe location, and the length of the pipe has to be specific.

[intocarss]

Don't know if this is what you're looking for

http://forums.corral.net/forums/general-mustang-tech/496793-exhaust-drone-completely-gone.html

http://www.the370z.com/intake-exhaust/22791-fancy-tech-how-get-rid-exhaust-drone-works-great.html

http://www.the370z.com/intake-exhaust/22791-fancy-tech-how-get-rid-exhaust-drone-works-great-5.html

[WSSix]

That's some good info! I hate drone with a passion.

[intocarss]

http://www.performancecarweb.com/showthread.php?t=144

http://www.youtube.com/watch?feature=player_embedded&v=U2lt97Eukik#!

[CFster]

Spoke with Jeff at Solo Performance. Nice guy - lots of information. He's sending me a set. I'll post install pics and results.

[CFster]

They help with exhaust drone significantly!

http://cfster.smugmug.com/Cars/Restorations/GTO/i-sQVTc7k/0/X2/P1060753-X2.jpg

http://cfster.smugmug.com/Cars/Restorations/GTO/i-nFkkWVQ/0/X2/P1060754-X2.jpg

http://cfster.smugmug.com/Cars/Restorations/GTO/i-wVJfFTm/0/X2/P1060755-X2.jpg

[WSSix]

Glad it worked out for you!