i think blown's right i've noticed how my sunfroom pops up a little when i slam my door!

 

Garret, great sense of humor man, ROTFLMAO.

 

I am being serious now, I have a Vintage Red 93 R1 and my door sounds like a tin can too upon shutting it close. My car has no sun roof, so the pressure escapes somehow through the cat back and it sounds like a Fart.
When I got under the to see if there was any connection to this mistery, I found that the car had printed all over the bottom COCA COLA!!!!
Those Mother ******* Japanese are making cars with recycle cans from New Jersey!!!!!! Can you believe that???
I guess I will have to learn to live with the tin can sound now.

 

Weld them shut and stop worrying about it, as seen on 'The Dukes of Hazzard'.

 

johnchabin, you are being silly now.
How do you expect him to get into the car if the windows are rolled up???