WOW!! Great Website - I just joined

What exacty is the N25 option? Could someone explain in more detail for us Wet behind the ears folks on this board like me. Thanks..

 

...basically its the dual exhaust tips exiting THROUGH the rear bumper, with specific tips, ahngers and bumper unique to Buick

While it is often thought that these were JUST available in '71/'72, Here is proof that they were at least thinking about it as early as 68/69

 

Thanks Alan....That is so COOL...I may even think about doing that to my 67 since it needs a complete exhaust anyways. What would be all involved besides cutting the hole in the bumper? Would a hole saw work? Then again I might not have room around the backup lights after looking at the pic..