i have a hmf utility on my foreman best money i have spent
I have not been an EFI man until here recently. I think it is in the best interest to get the controler, but I am not really sure it is a neccisity.not yet,
cant afford a pipe at this time but I hope to.
My concerns also are..
1. Do most of them require the electronic controller even if you have EFI?
2. Do they require constant repacking. I read one pipe manufacturers instructions state that they recommend a repack every 20 hours. That to me isn't even acceptable, I can put more than 20 hours on during one multi-day ride.
Maybe I can beg the family to get me one for Christmas or maybe with my tax refund..
Until then we need a list of the top 5 pipes, tires, accessories, etc. maybe like a Christmas Torture shopping list..
Christmas has always been a torture anyway for me....
Dude. I applaud your existence. ccasion14:1st dirt bike = 1975 Suzuki dual sport 185; Last dirt bike = the 2008 KTM 950R I have now.
1st desert race bike = 1981 Yamaha YZ 465; Last desert race bike = 2006 Yamaha YZ 450F.
1st desert race ATV = 2001 DS 650; Last desert race ATV = 2006 Yamaha YFZ 450.
All together about 35 years worth of off road riding, but with most of the exhaust systems mentioned above being from the last decade. Keep in mind that we have four riders in our family, and three of those four riders have both a dirt bike and an ATV. With seven ATVs/Dirt bikes at a time the experience with different products adds up fairly quick.
Sweet write up dude! So would you suggest HMF Penland for my 450? I looked at the FMF Powerline because I thought it would be quieter.Our family has used a lot of different aftermarket exhaust on ATVs and dirt bikes.
Every single one of our dirt bikes has had aftermarket exhaust because you need a USFS approved spark arrestor to even sign up for the desert races we compete in, and the stock exhaust does not have a spark arrestor. We have used Pro Circuit and FMF exhaust, and on the bikes hands down the Pro Circuit exhaust have been both better performing and have been better in quality/durability than FMF. I have an Akrapovic exhaust on my KTM 950R, and the quality of construction and the sound quality are fantastic. Although I got the Akrapovic exhaust on the KTM because it is titanium, and because it weighs 17 lbs less than the stock exhaust. Seventeen pounds less weight way up high under the rear fender, as far away from the center of mass as you can get, makes a huge difference in handling characteristics on a motorcycle. The stock exhaust on the KTM 950 also has catalytic converters, which get very very hot, to the point that it melts plastic and is way too hot to carry a passenger on the bike. The aftermarket exhaust solve the heat problem.
For ATVs I have had best results with Ron Wood exhaust systems. On DS 650s I used a Ron Wood exhaust, a CT Racing exhaust, and an HMF exhaust. The Ron Wood exhaust made the most power and sounded the best. The HMF was next in performance, but was the loudest of them all. The CT Racing exhaust was unimpressive, and also very loud, but with a harsh raspy quality to the sound that was not good at all. I have a Ron Wood exhaust on my Can Am now, and the performance increase is significant, while the character of the sound is as sexy and bad ass as any ATV I have ever heard. The Ron Wood exhaust on a v-twin is wicked!
HMF exhaust have been the second best brand as far as performance goes, and we have used them on the DS 650 and on YFZ 450s. The HMF exhaust are very very very loud though.
FMF exhaust have been fair in my opinion. They do improve performance, but the build quality is marginal, and they shake themselves apart over time.
Muzzy exhaust is good quality and has good sound, with fair performance on the KFX 700 we used it on. The location of the rear cylinders head pipe cooks your left leg though, which is a rather poor design.
Yoshimura exhaust have not provided a performance increase I could feel on either a Rhino or a KFX 700. They need repacking very frequently, and the finish on the Rhino's Yoshimura exhaust deteriorated severly in just one year.
We used a Gibson exhaust on a Rhino, and performance was worse than stock. The Gibson exhaust is very restrictive, and decreased top end speed by 7 mph relative to a Yoshimura exhaust and the stock exhaust.
The penland needs to be repacked?I think the HMF exhaust would be a good choice, with either the Penland series or the Swamp series being good choices. I would think the Penland would give more power, but the Swamp series would not need repacking.
Wow seriously man? I bet you gained alot of mileage too...I recently went against the grain and converted my bike back to stock (performance wise). I was surprised how little difference I know felt. In fact, I really pleased running it this way at the moment.