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Honda 450r pipe on 400ex. what do u think?
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Posted by: Hondamaster5505

Here's the deal. I have an 05 400ex that i picked up for 1800 from a friend. Im still paying him off, so im tight on cash. I had an idea for a slip on though...

the 450r pipe looks like the same style part that slips onto header.
My idea was to put a 450r stock pipe on it, and buy the hrc hi-flow tip and jet the quad.
Do you think this will make a difference/work?

Im not expecting the same as a actual high performance exhaust, but hopin for a power increase. Give me your opinion.

Thanks!

Posted by: 250x_kyle

well if u mean header and all the headers are completely differnt. and as far as the 450r muffler and hrc high flow tip i say pull the baffle out of the stock ex and rejet

Posted by: 400exBRAAP

you can buy high flow end caps on ebay, they come with spark arrestor screens, or do what im doing, contact your grandpa(im only 15) and have him help ya make your own! i think it will sound better than just pulling the stock end cap off, and do you guys think i will need to rejet for that>

Posted by: 400exrapes

well i think you should buy the 450r exhaust and do your plan, and see if it makes a difference but do it all fast cuz if it dont. Return it. i always like new ideas i dont like it when ppl wont accept an idea

Posted by: xc_racer1

i say save the money for an aftermarket because its not gonna make enought diff that its gonna matter. just save ur money. ull like an aftermarket way more than a stock 450. an aftermarket hmf will run u like 220

Posted by: oleboy87

yep jsut save up and get an hmf!

Posted by: 400exrapes

try it, because no one will ever know if its any extra power if you just save up for an hmf or other brand muffler. If it does help thats a really cheap way for some guys on here to get some extra power.

Posted by: az300

If you can get a 450 exhaust from an 06'-07' I would do it. That is the best stock exhaust system to date of any quad sold. Tuners recommed leaving that exhuast on the bike unless you are going to drop $500-700 on something like a curtis sparks. Some of the 450 aftermarket exhaust actually rob power and only give the bike a different sound.

Posted by: Hondamaster5505

thanks people. see, i did try to take the end baffle out, but it sounds like crap compared to aftermarket and it dont make a difference. (the end of the pipe thats actually open is only like 5in long, the rest is all small hole and packing.) i figured the 450r w/ hrc kit makes it like a performance pipe, and it would work, but i might save up for curtis sparks system, not sure yet. ill let everyone know

Posted by: 250x_kyle

if you have any fab skills make your own shorty. we did that on my friends yfz. used his broke hmf end cap and made a 6 inch can for it. custom mid pipe and a different mount on the subframe. sounded sick when he fired it up

Posted by: Hondamaster5505

bump, need more opinions

Posted by: 440challenger

the 450 slip on works great. I had it on for a while for a super low buck mod. You just have to make an upper bracket on the subframe becuase the mounting points are different.