Dunno about performance really BUT I'm kinda agree with the rest on keep stock piece UNLESS you get a nice deal around getting cheaper than market prices, someone used or unsatisfied costumer trying to rid off the unit he got.

I'm trying to get an eddy 2186 to my 400 because I want to keep more less stock look and same useage, painting in fact the intake too, but just if I get a DIRTY CHEAP deal, not expecting to pay $200-$250 what is the price.

so I think we are more less on same deal ?