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FMF are out
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I had a titanium 4 on my KFX 700 with powerbomb header. It really woke up my KFX. I also added jets and K&N at the same time so whos to say how much of it was the FMF. But I can say that in my opinion, it sounded better than the others. Again, I would rather have the better performing one than the better sounding one. Time will tell. We will have to wait for some dyno tests to see.
Seem very stylish![]()
About the Powerbomb, anyone with feedback on another atv models?
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Yeah, i was talking about the powerbomb because i want to compare a full system (fmf headers with powerbomb+slip on) against just a slip on akrapovic evolution. That is because for the price of the akrap slip on you could get a full system from FMF. What would be better in therms of horsepower?
The KTMs have a massive headpipe from the factory. The company with the best can design will win. I have found that with high performance models that you cant really improve on the factory headpipe design (unless doing heavy engine modification). The only benefit sometimes is a few ounces of weight. I really wouldnt bother with an aftermarket headpipe for the KTM. Alot of companies are making good slipons. I am going to try leaving the factory one on for a while. I may change it if I see some big gains on the dyno.
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not so sure on that, generally the aftermarket headpipes benefit the low end and mid range characteristics.
On our yfz 450's we've seen better torque and about 1/2hp at max rpm from headpipe changes, is it worth it, thats up to the individual.......
On our yfz 450's we've seen better torque and about 1/2hp at max rpm from headpipe changes, is it worth it, thats up to the individual.......
weather to clear? what r u talking about? ha, it was snowing outside earlier...
i am looking forward to that review.
any chance you had a pre-fmf dyno on it?
sound tested at 100.3 def power gains in low end haven't had dyno yet will try to soon
full system w/ mega bomb, mega bomb is a little more quiet and helps in the low end powerbomb is supposed to help out in top end.
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$399 for the slip on huh?...how ironic...
Looking forward to some dyno sheets...looks killer...
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Looking forward to some dyno sheets...looks killer...
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430 Posts
I have the 4.1 slip on and stock header. Where the the muffler slips onto the header is a little big and i have an exhaust leak. I've tried honda bond and yamabond, both blew out. Im thinking about using a heavy duty wormgear glamp, any other suggestions?
thats msrp, who pays msrp, I surely don't... Based on the 3 stocking dealers I have spoken with, the fmf slip on's are going for $279-$329 and the full system's for $459-$629.
I would entertain owning a dasa, but refuse to pay msrp. I have owned one for my LTR and am very familiar with there performance.
I was pissed because the two women I spoke to were rude about it when I called back and asked for them to explain there pricing... Makes no sense that a full system is less than $100 more...
I would entertain owning a dasa, but refuse to pay msrp. I have owned one for my LTR and am very familiar with there performance.
I was pissed because the two women I spoke to were rude about it when I called back and asked for them to explain there pricing... Makes no sense that a full system is less than $100 more...
when i installed just the slip on i didn't notice it being bigger but i did use high heat silicone gasket maker and let it set 24hrs no leak.
hope this helps
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