I wanted to make a write up because I think its ridiculous to pay $400 bucks for the lower diffuser when changing to the new nismo bumper. The nismo bumper will fit just fine from any year, but if you want to connect your lower body panel it will not fit because there is about a 6-7" gap to the front bumper. You can ride without the lower body panel but you'll get more drag and the chance of damage to your oil pan. This is what I made for about $15 and 4 hours of sweat and tears.



My roommate brought me home some black powder coated sheat metal


Attached the front bumper and lower body panel, lay cardboard or something underneath and draw out a templet like so.


We had to bolt 2 pieces of sheet metal together because it was not long enough
Traced templet on sheet metal or your material


Cut out your traced templet


The cut out should look like either a creepy witch finger or condom, which ever is preferable in your house hold.


$10-15, the only money spent on this project and kinda went over board buying different sizes as I wasn't sure what would work best until I put it all together


Some of you may not have a welding machine laying around in your garage's, but it is best to make your diffuser removable. We welded on female screw inputs(don't know the real name) so that I would easy to screw the body panal on and off if needed. (ie oil changes)




We could have made it look pretty but I just needed something basic and easy to remove if needed. Make sure to attach your diffuser underneath your front bumper so you don't catch drag.





Good luck!

 

looks good
any pics from the front?

 

nice work. thanks for the info!

 

props on the work. $400 is ridiculous.

 

LMFAO!...Thanks for the write up!

 

Thanks for the info man! I'm about to order my v3 and was wondering what to do about the diffuser.

 

nice write up. the Ings+1 front bumper does the same deal. I just have mini metal brackets to connect the stock underplastic to the bumper.

 

more pics of it finished!

 

https://my350z.com/forum/exterior-in...-body-kit.html

 

what would you charge to make another one?

 

Nice creative work, but the problem with that setup is that you're missing half the diffuser. the nismo piece didnt cost me $400, and it actually adds a thickness to the bottom side of the diffuser. Also, the reason nissan made it that way was because if you do accidently pull to far forward, hit road debris, or whatever, Its ABS plastic and is very flexible, this allows for it to absorb the hit and not damage you're expensive bumper cover. it also comes with a rubber corner cover that protect the inside of the wheel well. I could already see damage in that area in your last picture. But it works. Im just pointing out the reasons for using that part. Nice write up though.

 

very impressive diy..now I have the guts to make my own front diffuser..but before it id install my CRE Rocker Flares first..

 

Impressive would have been if you replaced the entire plastic with that black metal.. Why not? Nice nonetheless....

 

nice work