JDM STi 2003,

Have a NCT test this saturday, and only have friday night to put back on my OEM 2.5" Downpipe, to my 3" Milltek system. Its only temperory for the test, 3/4hours.. but I havent had a chance to check if it will bolt up, will the bolt holes line up or will the holes on the milltek be further apart as its 3" ?

I know it wont be the best but ill be putting gasket sealer, dont gasket and 2 3" gaskets aswell to help seal it.

All very rushed, but have to have an operation next week so wont be able to work on car for a month + , and its due the test !

 

it will fit, 2.5" and 3" flange has the same holes otherwise you wouldn't be able to fit aftermarket 3" exhaust to oem DP which is 2.5"