after installation after the first test run there was smoke comin out of the filter but after dat on the second one it was okay n now showimn ecu code 21 n 23.. need help

wtf 21, 23? u sure you read them right? and you sure your y pipe is on correctly with the flange or gasquet?

yea every thing is right

What filter are you talking about?

rite after the two pipes join in from the headers

hmm what brand did u buy?

I think you mean 0201 0203 but those have nothing to do with a Ypipe install. Try this site to find out your codes,

http://vbxmaxima.8m.com/ecu.html

i had the same problem with thesmoke comin out... it goes away in a day.. it happend to me 2

yea 0203 n 0201..the smoke stoped after a few spin but i don noe y its showin those ecu codes.

i reset the ecu ...the engine light hasen't shown up yet.

smae problem, it is just the paint burning off....