[johnybryant]

So I am currently building a 400 ex I am putting a strange one cam and dynojet kit I was thinking in exaust mine in stock I think duals would be bad ass is that a option?

 

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Check it out on EBAY Looney Tuned Exhaust LTE Black Dual Duals Honda TRX400EX TRX 400EX 400 EX 99 07 | eBay