Question about Exhaust?

[F150 Rider]

Howdy fellows! I did search and could not find what I was looking for so heres my question. I have the HMF slip on Muffler on an 04 400ex and it is pretty loud, I like it loud but I`m sure by now my neighbors hate to hear it fire up:D I would like to keep the muffler but is there a way to make it quiter with a different tip? or is the sound controlled in the core of the muffler?

Here is a link I found with different size tips
http://www.procircuit.com/store/pc/viewPrd.asp?idproduct=199&idcategory=227
if you scroll down where is says Size/Diameter it says Quite 4.0" base and it shows a pic of it, here is a pic of the outside diameter of my muffler with the current tip off, would this tip fit and would it make it any quiter?
http://i42.photobucket.com/albums/e343/f150rider/DSCN1256.jpg
and heres the measurement on the tip that is on there now
http://i42.photobucket.com/albums/e343/f150rider/DSCN1252.jpg

[brian76708]

https://hmfengineering.com/view_product.php?category_id=401&product_id=2759

this one is for the hmf and yes it will make it quieter how much i don't know because i dont have one but i know others on here have used them before.

[F150 Rider]

thanks brian! I missed that link somehow when I was looking earlier! it says with the quitecore it will lower the sound by 4-6dB, is that a noticable difference for $25? or should I just stick with what I`ve got? it also says you will have to repack the muffler more offten that is one thing I have not checked yet, need to get some rivets before I do that, I also noticed mine does not have a spark arrester probably will need one of those if I go to a park/track to ride.

[lilyamaharacer4]

You dont need a spark arrestor to ride tracks.

[F150 Rider]

Thanks I thought I saw a sign at one of the tracks but I must have been mistaken oh well! What places do you have to have a spark arrester at?

[lilyamaharacer4]

Mostly any of your national forestry areas and some local atv clubs trails also require them.

What about the HMF quiet core? I have it and its deffinately not as loud. Idling its just the slightest bit louder than stock and a rev is loud but noticably quieter compared to the exhaust without it. I think its only $20-25 too. Rather than a 2" opening it reduces it to 1" I believe.

[F150 Rider]

so it does make a big difference then? I just may haft to try one a see for $25 why not! Thanks FlewByU352!