Just some info and photos of the intercooler fitted to my D22. I know theres plenty of link for this, but here are some pics of my cooler and pipes.
Cooler: 550x230x76
Pipes : 63.5mm 304 Stainless steel, 4x 90 deg bends- silicone 1x50-63, 2x 58-63, 1x 63-63