just curious i have an 03 evo with no " ACD" or " AYC" but the new 05 have one . i'm not sure which one but . Am i missing out alot since i don't have that feature to when it's not worth the evo since i don't have it . Or my 03 is fine i'm not missing much ?

 

No active yaw control (AYC) in the states to my knowledge. 05 and 06 have an active center diff. Very big diff. MUCH better freeway control. Finally beating civics and STis. Worth the trade up. 05 receieved a better transmission, new clutch, and got a bigger hot side and flapper on the turbo. 06 acquired the incredible MIVEC motor (variable intake cam), an even bigger turbo, a new muffler, and some sweet redisgned Recaro suede/leather seats. The muffler has been dyno tested at SRM Performance in San Rafael, Ca compared to Buschur muffler delete which only managed 1whp over the stock 06 muffler! Keep checking into it, lots of small differences.