This came off a Seat LCR. sizes are length 680mm, depth 90mm, height 160mm, 2.5 pipe work with 2.1/4 ID outlets.
Very good order with no fin damage.
Comes with mounting brackets and pipe work, very nice intercooler, not a cheap ebay item. I'm pretty sure this will fit the S3 with a bit of tweaking, it was going on my S3 but I'm selling up now.
Paypal as gift or add fee's. Collection price but can post for £12.