When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
My 3" intercooler piping mates up to it or are you looking for the inside diameter in mm?
Just need to know what size adapter to buy. I have 2.5 Ic piping. Not sure what size the coupling I have on there now is. I wanted to order the part now. My car is across town at the moment getting a paint estimate.
So you're saying 3" coupling worked for you and it fits "snug". I can buy a 2.75 to 2.5. Or a 3" to 2.5".