can someone help...
 

will a header and exhaust from a 03 civic si(coupe) fit a 02 civic si(hatch)??do they both have the same motor?

there was a 03 Si coupe? i thought the Si went from 99 thru 2001 model civics and came back in a coupe in 2006. anyways, if it has the same engine (dohc i-vtec k20) it should fit. dont be surprised if the header my be short, since the 02 Si hatch..is a hatch and might be alil short and your trying to put it in a coupe. dont quote me, im not 100% sure. just a posibility. its nothing alil welding and extra pipe cant fix.

is your 03 si coupe a canadian model???they are the ex version here i believe...and if thats true then they dont have the same motors and most likely will not fit.

the header and exhaust are on the coupe...so would it be to long for the hatch??

so wat motor is in the ex??

if it is an ex its a d17a2.

There isn't an 03 Si coupe in the states. Canada's model for the (ex) is considered the Si like Rushbuster said.

the ex is a d17a2...