Needing a performance exhaust for my sons 300EX. Are the FMF PowerCore 4 good? I have heard the HMF's are loud but give good power gains. It already has K&N filter. Is a full exhaust system worth the extra $$ over a slip on? Want to keep it under $300.

 

HMF!!!!! i have nothing but great things to say about the HMF pipes. on my kodiak the slip-on gave me so much more lowend tourqe its not even funny. and on both the kodiak and the LTZ the HMF's sound mean!!

 

i have the fmf power core full exhaust and k@n air they were great at first but than i had a problem with the muffler it wasnt letting out enough air

 

you won't get a full system from anyone for under $300.

Ran a Supertrapp/White Brothers on my EX for several years, never gave me any problems.

Have had an HMF Utility Series on my Vinson for over 5 years now, never a problem...but definitely get a "Quiet Core" insert to keep from being "THAT GUY"...you know, the jackass who runs a ridiculously loud exhaust and who eventually causes riding areas to be closed.

 

yea "that guy" just ruind it for us around here the other day flying around the streets on his rapter it sucks because every one around here has to cross the street to get to the track theres no where to park and this kids doing donuts in the middle of the street now the cops sit there and dont let us ride there anymore

 

The stock header is pathetic! The FMF PC4 comes as a full system, with a free flowing header....excellent deal!

 

Ebay has NEW full complete FMF Powercore 4 systems for 249.00 shipped. Muzzy slip on and mid pipe for 139.00. I've heard many say the HMF's are good but loud.

 

WOW...do I stand corrected...$249 for a full exhaust system is a smokin' deal, but does the FMF Powercore 4 have the same problem as the HMF without the "quiet Core"? In other words, is it friggin' loud?

Yes, HMF is very loud without the "Quiet Core" insert

 

Even better, I found an ebay ad for the full system for $225.00 with free shipping. That is a hell of a lot less than what I paid for my supertrapp system more than a decade ago

FMF POWERCORE 4 FULL EXHAUST HONDA 250X 300EX 300 EX : eBay Motors (item 270456612596 end time Feb-11-10 15:12:42 PST)

 

Yep. Thats the one I was talkn about. Comes with 3 different inserts and has to be better than the choked down stock pipe. I've bought loads of parts and last 4 atv's were bought within 200 mile radious of home off Ebay. Hav'nt been burned yet.