Yo, I have a raptor with fmf power core 4 right now and i want to buy the powerbombs. Does anyone have experienced with these headers? If yes, can you describe it please? HELP ME! haha

 

Anyone????

 

hey i forget a question... would I have to re-jet if I put the powerbomb headers?

 

The FMF powerbomb header works well on the rap with the fmf powecore canister. You will probably have to rejet unless you're on the rich side to begin with.

 

are the headpipes bigger than the stock?Is it louder than the stock? and yeah i think ill need to rejet...while I put the powerbombs headpipes, ill take the lid off and put 2 k&ns. its gonna be a drag racer soon[img]i/expressions/face-icon-small-wink.gif[/img]

 

If you're making a drag bike, that's the wrong pipe to use.

 

Im with Maddog. If your SERIOUS about building a real drag bike. Do some home work and talk to a REAL engine builder to figure out what kind of mods you will be doing to the motor.
Then buy a pipe that matches those mods.

Hope youve got LOTS of Money !!!!!

 

thanx guys, but I mean a drag bike for around here because theyres not alot of fast atv. I just want to be the fastest around. Ill stick with fmf because I think its a great pipe

 

It is, for a bone stock or very mildly modified trail bike. But if you want to make any real power at 6500 rpm and up you need a better pipe. That also means anything more aggressive than a stage 1 or 2 cam is going to fall on its face as you wind it up.

 

So If you think its such a great pipe, and your not gonna listen to other peoples advice, and your gonna do what you want anyway,then why come on here and ask for help? GRRR!

Look, If your just looking to make your bike a bit faster than others in your area, then at LEAST buy a motor KIT. Dont try piecing this thing together one component at a time. A motor built like that is harder to get tuned.

Alba offers a decent stage 2 kit for the rappys that make some pretty good HP.
You get piston, cam, cam springs,Race exhaust (buy the spark arrestor too, its seperate), jet kit, gaskets, K&N Pro flow air filters. Get the head ported at the same time and you will be happy with the results.
If you buy it all as a kit at least you will know that all the components work well with each other, and it will be easier to tune.

Check your PMS.