What is everyone's opinions on these? They get very mixed reviews but they are the only coolers I can find that are thin enough to fit where I want them.

https://www.merlinmotorsport.co.uk/p/pwr-21...ooler-g-gc621an

I plan to have two this size, one for the engine oil via a take off plate, the other for the gearbox oil.

That brings my second question, is it big enough, or too big? There is some technical data with them but I don't really understand what it means......well I know what it means but don't know if it fits in with the GT 4s requirements.

thanks all

Nial

are they thinner than Mocal or Setrabs coolers?

Yes, by about 1.2cm. (15/32 inch)