I'm doing something kind of crazy with my X1 and will be changing intercoolers. If anyone wants a good deal on the Wagner that fits with absolutely NO modifications at all and installs in about 20 minutes, let me know. I have only been using it for a few thousand miles and it's in great condition!
This is the only intercooler on the market that bolts right up to the stock hoses and requires no cutting, dremeling, stretching, or anything. Even uses the stock retaining clamps.
I saw a 1.5mph trap speed improvement and about a 35F drop in intake temps from stock with this.
$550 shipped