Join Date: Mar 2006
Location: Southern California
The least expensive alternative that also preserves OEM originality is to install the Mishimoto plate and be done with it.
Going from there, if you want to take a re-engineered approach that is focused on optimal performance (less weight, less complexity, consistently higher oil temps) rather than lowest cost or originality:
- the bespoke rear oil cooler set up in my '06 Exige cost about $450 for all parts (oil lines, fittings, oil cooler, and ducting.) Though, it required my R&D and fabrication of mounting brackets.
- next up is the very slick turn-key rear oil cooler solution from BOE, which will cost about $750 excluding installation.
- then, next up would be a laminova solution, of which the parts could cost a couple of grand before any installation costs.
2006 Exige - Phantom Black