I think ASE use Adrad cores..same core construction method as PWR (K&J)..extruded. The only reason you would use an Australian made extruded type core (from a business point of view) is because you can order minimal quantity/custom size cores with quick lead time. The extruded cores work Ok..but for the same size you will get better results with the bar & plate unit. Ive been to 4 different heat exchanger factories around the world (1 in USA and 3 in China). One of the Chinese factories had a bunch of intercooler cores from every manufacturer around the world. They showed me the extensive testing they did...was very interesting. My 2 cents Kevin ← kevin you sound pretty clued up think your right with the ase & pwr cores being similar the bar and plate never realy flows as much as some tube and fin but the eficiancy almost always out weighs the flow! especialy when there is room! food for thaught here: nizpro cobra kit = cooler and plumbing kit plenum with std exhaust = 330 odd rwkw aps phase iii kit = cooler and plumbing kit exhaust with std plenum = 330 odd rwkw comon denominator = cooler and plumbing so how many people listen and go for cooler with plumbing? lucky to see 5% do it right!!!! at this point wog cooler no. 2 began life ← Its a shame that only 5% of people do it right. As I said in a another thread its not hard to do an upgrade intercooler for T. Making it look right at the front of car is another thing. The front end of the T is pleasant looking. I dont understand why guys spoil it by installing a big intercooler that doesnt sit in the centre of the front end. My new kit sits in the centre and is symmetrical...it looks right. Kevin