en-us https://www.intensedebate.com/users/594122 Comments by avilarr43 http://motocross.transworld.net/1000081763/features/daily-hook-up-fmf-factory-41-system/#IDComment25976638 Earlier this year I purchased a 4.1 with a Powerbomb for my 2007 RMZ 450 and I love it! I have had no problems whatsoever and it has not always been rubber side down. Great Buy!!!!! Wed, 1 Jul 2009 00:08:14 +0000 http://motocross.transworld.net/1000081763/features/daily-hook-up-fmf-factory-41-system/#IDComment25976638