Porting a 400ex talk to me here!

[IAMFITZY]

I have purchased an HMF slip on Exaust...I am running a K&N Filter with the lid off. I heard that the Stock header has a good flow and I am going to Port my head instead of buying a full system... Do you feel that this a wise desition...?

[6858-400ex]

it depends if u are doing it urself

[K_Fulk]

I wouldnt do much if you still have the stock header and carb.

[TC426EX]

Originally posted by K_Fulk
I wouldnt do much if you still have the stock header and carb.

Theres no real way to chintz and save money if you want to do the porting. First off I wouldnt do it myself. Second of all, even if you did get a good port job out of it, you wont benefit much from the increased flow youd achieve when you still are limited by the carb and exhaust....

[duke416ex]

You can port the header and help a little, a little. Just take the header off and look in the engine end of it. You should see a weld on each side, take a dremel and grind those welds down even.

[IAMFITZY]

Yeah that is what a friend of mine did to his... He told me he can do no problem aswell.... Thanks... I know that it is a small thing but... Small things can make a big differece...

[400exredrider]

the stock header with a slip on combo is good for bottom end but if you want it to run optimum on top end a higher flow header is necessary