I've been leaning more towards AEM just because it's C.A.R.B. legal in all 50 states. I heard it fits better in the engine compartment than the Fujita. Other than that, I like the price of Fujita and the other 'goodies' it comes with like the duffle bag, hat, and bottle of NOS. AEM is running from $200-$240 dollars and Fujita is around $150-$180 dollars. Is there any difference between the two?