Yeah, certainly are large, originally was going in my JL Hawk, but to large and I couldnt be bothered. Now they are fitted in my JL F 15, very east to use, but very powerfull. Make sure all your attachments for the linkages are strong, if not I think they would tear right off. Easy to set up tho. And ya doors are tight, they wont suck out under aerodynamic force.
I like em.

Matt