How are they installed? Do you just tack them on or do you have to cut out the bumper?

 

i believe they are just held on by 3m double sided tape

 

This is correct.

They are 100% reversable, so NO, you would NOT cut a hole in the bumper.

 

ive heard autokits has tabs where it bolts up using bolts/hole already there on the underside of your bumber, i dont know 100% but i will in about a week when mine gets here!

 

out of curiousity...not to hack the thread...what the hell is the point of a diffuser anyway?

 

The autokits DOES utilize some bolting points that are already on the bumper, so it does not require any cutting at all. Also uses 3M tape obviously

In racing scenarios (high high speed) it provides more back end stability for the car but in 99% of cases it's just aesthetic

 

thanks Hispeed...thats kind of what i figured but wanted to make sure I wasn't missing out on anything exciting LOL

 

lol, you're not missin out on ANYthing bro! its just for looks, and doesn't even add that much

 

yeah i agree...I dont think it's something that should be on a G in my opinion...

 

Whaaat?! It looks sooooo good with the right diffuser IMO.

 

Thanks for the reply guys!

 

It improves the air flow from under the car and out the back end. Not that it will be noticeable at the speeds we drive, but the aerodynamics of the car are improved. I also like the fact that it assists in exhaust efficiency as well.

Again, realize that these are not significant or noticeable improvements, but every little bit helps.

Plus it looks cool!

 

^^def a great accent on a IP ride.

 

I like that one in the pic. Kinda reminds me of when a well dressed hot chick bends over and you get a peek of Victoria's secret... a little racey, but still classy.

 

lol