blitz nur spec system to standard downpipe
 

my97 sti
i want to fit my 3 inch blitz system to the standard 2.5 inch downpipe.
any ideas how i make them fit?
the holes match up but theres a gap which makes the exhaust blow
anyone had this problem?
if so, how have you rectified?
thanks

You would be better off getting a decat pipe to get the full advantage of your nur spec more power to be had to nicer sound just bolt on ect easiest option

My didnt run to good with a decat downpipe