Intercooler looks too fake, its standing out, the lighting isnt the same
you need shadows on the top part of the intercooler that way it looks likes under and behind the bumper:

see how the front of the car is dark cuz the light is from the back, so the air dam and inside of it, it would also be dark, and giving the FMIC a shadow, big one and dark, mostly from the upper right side, because the lower left side of the front is lighter/brighter, light hitting it more,
hope it helps
side note:
i like your style, chop is clean, you know the basics, and you got a eye for it, interested in participating in our photoshop contests? i will be putting it up today
you need shadows on the top part of the intercooler that way it looks likes under and behind the bumper:

see how the front of the car is dark cuz the light is from the back, so the air dam and inside of it, it would also be dark, and giving the FMIC a shadow, big one and dark, mostly from the upper right side, because the lower left side of the front is lighter/brighter, light hitting it more,
hope it helps
side note:
i like your style, chop is clean, you know the basics, and you got a eye for it, interested in participating in our photoshop contests? i will be putting it up today