My gen 1 fan kept hitting the turbo header no matter what I tried. I tried to make brackets to increase clearance but it just wasnt enough. Just as an fyi, I originally intended to replace my standard gen 1 fan with 2 gsxr1k fans to have more clearance. The tabs broke off the old radiator and I could only do one gsxr1k fan on the left side with some steel straps from Lowes, cut and grinded to make legs. It will work and keep your busa from overheating. I tested in Florida 100 degree traffic heat with full fairing on. I didnt push the envelope with Orlando type traffic in the FL afternoon (5 mins per stoplight, light at every 500m)but I did test it. Just keep that in mind if in a pinch. You can get by with 1 of those gsxr 1k fans. I found a gen 2 radiator with both fans on ebay in good shape for $100, will be installing that on my gen 1 next week. If anybody wants a pic of how I made the legs for the gen 1 radiator, let me know and I will show a pic. My radiator had a repair and I intended to replace at some point, just not this soon, lol.