This is our latest race diffuser. coming in at 42" wide, 31" deep, and 5" tall, this is the heavy hitter of the C2 diffuser lineup. It also allows for rear exit exhaust! The base of the diffuser and fins are made from ABS plastic and the fins, like all of our diffusers, are easily replaceable in case of damage. we also offer two mounting positions (different mounting holes can easily be added to fit your specific application).