For those that are interested, this is how I installed an Ebay intercooler on my 1999 Stage 3+ 9-3 to fit through the stock locations.
The kit is from Just Intercoolers.
Core Size: 22x7x2.5 inch
Overall size: 28x7x2.5 inch
Inlet and outlet sizes: 2.5 inch
2.5" Polished Aluminum Piping...