well k20s and k24s have low miles seeing as how there newer and u would know how many miles it really has not like ordering a gsr from hmo and tiger japanese that doesnt tell u exactly the mileage.the only upside to having a gsr would be that parts are more commen but that works against u as well when someone steal your car its gonna be harder to be like hey thats my intake manifold.that also means u might be tempted to buy stolen parts i dont hear that many ppl stealing rsx's and tsx's. idk its expensive but your car is gonna be on a whole different level.