TE/TC 2015 TC 250 Full Race Mods

We are planning to use the TC 250 platform to make a AA woods bike out of this year, as my oldest is moving to AA class for '15.
What are you doing to these models for use in woods, sand and rocks, suspension wise?
What engine mods are being used out there?
What pipes work best for good mid and smooth overall power with a good top end hit?
Any additional info will be appreciated as well.
As always, thanks in advance.

What ever the KTM factory guys use or have used for the most part is your best bet, I know that wasn't great help, but a good look at what race packages the 250XC and 250XC-W AA guys are using will put you in right in that same playing field and in the game.

Craig Delong rode a TC250: to National Enduro AA/Expert Class and GNCC A250 Championships, this year. I'd start trying to find his setup.... and what's in the water, in that little PA town, he and Andrew live in!

Bart Hayes/ Ben at ride PG usually do their suspension. They test bikes constantly with riders present.
Pretty sure Andrew and them are still using them. The I think are the us White Powers guys.
They did my Kybs based off of Imput when Andrew was with Far. Prob the best woods, mud, rocks and root suspension I have ever had.

My best money bet is that our new nat enduro champ did not use 4cs forks on his race bike and used the (i dont know the WP model #) forks of the XC KTM, that goes for all the gncc and world enduro guys as well that use the cone valve factory Wp system forks. the 4cs IMHO is a consumer level product for most of us.
I need to say that MXA like 4cs forks............but they like "hardcore" Mx stuff......for me MX style stuff is the devil for riding hardcore enduro stuff, old school open chamber 5 year old forks will raise my game more than any ultra modern multi chambered forks--- unless they are some factory A kit things ($$$$$). Mr. K is getting good press, for his 4cs upgrades....but at 9 c notes for those radical 4cs changes you could get on ebay and buy a set of 5 year old KTM XC-W or XCF-W forks rebuild revalve respring and get the same results (for 99% of most of our skill levels).
My dream set up is OEM 4CS legs with Marzocchi cartridge inserts dialed in by ZipTy Racing......there's an ultra modern cartridge custom built trick set up that I know I would love!!

All that with maybe a side of these!

Andrew ran full Factory WP Cone Valve forks on his National Championship Husky. This is what all the Factory KTM and Husky guys run. There not available on on any consumer bike, including the KTM 450SXF "Factory Edition" RD Replica. They are availible for sale to anyone though, through the Power Parts Catalogs. Factory support riders, all pretty much use the older WP Closed Cartridge forks.

It now looks like we are going with a 2014 TE250 for "AA" son and a 2014 TE300 for my "A" son.
They are also going to ride some enduros here in the Midwest, and I have a line on a well set up '14 TC250 with 16 hrs on it.
I'm still going to have to deal with the forks on both, so what kind of money is Ty charging to make the 4CS forks work?
Do they work for rocky, rooty trail work as well as sand whoops. All of which we run into at our venues.

From what I've heard from East Coast fast guys.... you can't really set them up for that spread of trail types or to work consistently at all.

What about slow guys?

When I talked to Ty, he felt they had a good setup for the 4cs. I don't know if anyone really has them dialed unless you spend ultra bucks re-engineering them. Should be getting mine back in a week or 2. Hey Enduro kid and Rob, eBay still has the a kit up for bid. Was $4500, pretty much a steal at $4400 now. :P

What do these do for a rider?

I think slow guys like me can make them work, if you stick to one type of terrain. I just heard from a friend, who rode the Graham Jarvis riding school, this past weekend.... Graham rides and races them stock.

Heck with the kids! That looks good for me!!!
How much are these going for?

Not cheap, but a lot of factory guys seem to be running these.
http://motocrossactionmag.com/news/mxa-team-tested-nk-sfs-air-suspended-triple-clamp