Most of the fitments are manifold related. I was able to angle my A/C condenser forward about an inch, and run a 1g rad in the stock lower holes, but tucked under the rad support. There is still about .25-.5" between them at the top. I had plenty of clearance with a BW S262 on it with both a bottom mount Pacesetter and FP manifold. I went to top mount, which will easily fit a S300 series, but it was custom built by JMF for my setup with dual fans and A/C. I know some of the T3 manifolds (esp the ERL and SFP) push it out away from the block for waterpipe clearance. That makes it tough for Galant/2G DSM guys.