HMF full exhaust 3 mod HP ?

[askmd]

fairly new to the LTR bought the first one an 06 came with the 3 mods including an HMF slip on I have only had it out a few times , love the power and sound I purchased another 07 for my son this one is bone stock I am considering another HMF for this one atv galaxy on EBAY has the full exhaust map key and pro flow K&N for 552.00 shipped with a 15 HP increase are these true HP gains I cant find a shootout that includes this set up thaks for the input

[sand_blaster]

Seems aliitle exaggerated, but maybe possible. Because when you add a cherry bomb, remove baffle out of stock exhaust, & remove airbox lid, its about a 7 hp gain.

[USAMoto00]

The numbers are almost always exaggerated and at the crank, not the rear wheels. Point being though, it will be a good HP gain and well worth it regardless of what the claims are.

[askmd]

Thanks for the feedback ,is the full exhaust the way to go or is the slip on about the same?