Shortening pipes? PLEASE HELP

[Yamatrike400]

Would shortening the stock pipes/muffler on a 82 yamaha 400 have a significant affect on performance if any? I just put a snowmobile front shock on the rear and gained like 8 inches of travel but the pipes hit even worse..please help if you can, because when i had the pipes separated(on the bottom where they connect) there was a big decrease in performance...not sure if shortening would make it worse,i need to shorten them because they hit the axle(3 wheeler axle on rear) and rub on the tires.PLEASE HELP

[Yamatrike400]

Well i went ahead and did it,seems to run fine,may need to richen it up a bit,thanks for all the help lol...

[300rman]

well 2 hours to get replies in the middle of the day is a bit impatient.......

[84honda200s]

well 2 hours to get replies in the middle of the day is a bit impatient.......





i agree......man you gotta give us a frigging chance here.

[Yamatrike400]

Sorry guys i was just in a big hurry to get it done