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Honda best pipe

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I have run FMF on everything, since probably before you were born. Loved them all!

Edited by reconranger

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the best pipe you can buy is either a loney tune complete dual exhaust (adds around 10 hp) or a ct racing full exhaust (adds around 8-10 hp)

Haha I love it when people throw out numbers like that. A stock 400ex has right about 27hp. You really think any exhaust in the world is going to give you 10hp? Thats almost a 40% HP gain! Your crazy if you believe when people or companies tell you numbers like that. A 400ex with a 426 stroker motor, camshaft, high compression piston AND a good exhaust will put out around 40hp which is about the same gains your saying you get from just a pipe lol.

A GOOD pipe can give you about 2-3hp MAX when the bike is properly tuned for it. Which aint bad when you consider is a 5-10% HP increase.

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well you have to give and take a few hp...i have a suzuki z400 and i have it bore kit to a 434cc stage two hotcams, edelbrock carb, open air box, and a ct racing full exhaust and im getting almost 60 hp out of a 30 hp stoke motor

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well you have to give and take a few hp...i have a suzuki z400 and i have it bore kit to a 434cc stage two hotcams, edelbrock carb, open air box, and a ct racing full exhaust and im getting almost 60 hp out of a 30 hp stoke motor

Id like to see a dyno chart on that. A GOOD dyno chart too, not some home made single wheel dyno. Id bet your actually making around 40.

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There is a fair bit of hop up potential in this engine. You won't trun it into a fire breathing dragon, but the simple basic mods are well worth doing!

Don't mess with the motor (internally), unless it actually needs a rebuild. Once you mess with it, this engine's legendary reliability will suffer.

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Ur z400 is not making 60 hp. Personally dealing with many 400ex's I would have to say the ct, lrd, curtis sparks, or yosh are all very good pipes. Just about anything will help the 400's restricted stock exhaust. Combine that with a good air filter, open air box, jetted carb, and a curtis sparks timing key and you will have a good running/stock motor 400ex!

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Sparks is the best for the 400ex, small core. Not the big core they sell on ebay...

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well you have to give and take a few hp...i have a suzuki z400 and i have it bore kit to a 434cc stage two hotcams, edelbrock carb, open air box, and a ct racing full exhaust and im getting almost 60 hp out of a 30 hp stoke motor

No way bro, it takes way more work than that to hit 60hp out of the new 450s. 60hp is not an easy number to reach.

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the best pipe you can buy is either a loney tune complete dual exhaust (adds around 10 hp) or a ct racing full exhaust (adds around 8-10 hp)

You make less power from the daul exhaust.

And Sparks is the best as far as I know.

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