I am looking to swap out the standard Vortech Heat Exchanger for a larger one. With the smaller pulley I don't think the standard one is keeping up. In 80 degree weather I am seeing IAT's at 120 quickly hitting 160 when the boost builds at full throttle (then quickly returning to 120-125). Anyone have any experience with LFP? I am looking at these two dual-pass HE's.

http://www.ebay.com/itm/2003-2004-Ford-Mustang-SVT-Eaton-Supercharged-Cobra-LFP-Dual-Pass-Heat-Exchanger-/261504831323?pt=Motors_Car_Truck_Parts_Accessories&hash=item3ce2e70f5b&vxp=mtr
http://www.ebay.com/itm/LFP-1999-200...-/261199507567

The Lightning one is beefier but also more expensive. Aren't there diminishing returns as water can only absorb so much heat in a given period of time...