Hey i own a 2005 LTZ400 with A FMF Powercore4 silencer and a UNI air filter it is also jetted. I was wondering if adding the powerbomb headpipe would give it more power at all and was also wondering about a K&N powerlid. If these things are not a good idea what do you think would be the next step to go faster? I was also wondering if anyone could help me get some pictures posted on here. I have a SONY digital camera that i take my pictures with and put them straight onto my computer but it won't let me post them on the site any tips? Thanks

 

I have the PowerBomb header and Ti-4 muffler. Sorry I can't say I tried it with and without the header, so I can't help you here.

Skip the K&N lid, and get an EHS Racing lid (covered with an Outerwears) (http://www.ehsracing.com/). Just for the record, I don't trust K&N air filters. I would recommend a Pro Flow foam filter instead (http://www.prodesignracing.com/).

 

I agree with the above post

 

If you are running with your airbox lid on then the power lid will definately make a difference, but it will require you to re-jet. There is nothing wrong with a powerlid because you still have to run the regular air filter, it just gives you more air. However, I agree with just doing the EHS lid. I am currently running without a lid with a K&N & outwear, but I was considering adding the EHS lid to help keep more dirt/water out of the actual airbox area. I'm not sure on the pipe. I would guess that if you just have a slipon then you might notice a difference, otherwise maybe not a big difference. I don't know if the powerbomb head pipe is designed for a specific rpm range (i.e. low end vs mid etc)

 

if your still running with the stock head pipe and the fmf changing the pipe will make a difference but you will need to recheck your jetting
as for your pics. they can only be a certain size to work

 

Thanks alot guys next time i go to the store i'll pick up a lid and a headpipe and let you know how it works