Even though I have a 240 I just had to put in my 2 cents. After talking to allot of racers and my mechanic (Nissan/Porche specialist) It was a toss up between the CFDF and ACT both get great reviews on performance and durability. I ended up putting a stage 3 CFDF in my car because there is a discount for people off the 240 list. I think they do group buys too if anyone is interested pm me. Later all.