I have the OEM rear spoiler and front chin under spoiler, I'm thinkin about getting the diffusers to complete the whole aero package (my car didn't come with it). My question is, would it really make a big difference and worth the money. Here's a link in case you don't know what I'm talking about. CLICK
Also, well it affect me in the future if i want to add a body kit or work on my suspension?

 

anyone?

 

anyone?

 

I doubt your going to notice any difference. Supposedly the aero kit lowers the CD (coefficient of drag) by .01. The only place you would notice that is in a wind tunnel, or at a very high speed, like maybe over 150mph

 

where do those even go?

 

You're not going to see a difference for city or highway runs. The car is pretty stable at 130mph. This mod really is just another way to make money, like the aftermarket radiator for N/A.

 

If you add a body kit later on you will have to remove the diffusers. Should not have any effect on suspension.

 

if you dont have the OEM diffuser then get and aftermarket one like Top Secret