What Should i do?

[DRusselltrx400]

I have a 2005 honda 400 ex quad and i just bought a slip over fmf pipe. Thats all i have done to it so far but I was woundering how much more power and performance an Air filter and jet kit would give me? I also plan to get a power bomb header as well. Is this worth my time or money? Am i going to feel a big differnce with this purchase?

[underpowered]

you HAVE to get a jet kit or atleast re-jet with the addition of a slip on exhaust. You sill get a noticable gain with the exhaust, be a good filter will help as well. the header would also be a good addition, will give you a little more top end than just a slip on. but no matter what, RE-JET!!

[quadman 05400ex]

the the bomb header and a power up kit that thing will riiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiP:D