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Discussion Starter #1
hello

this is for a 95 civic with a turbo d16 which is only a drag car it will never see road time. i was thinking about just drilling 3in holes in the rear bumber or should i buy the go autoworks diffuser? GO-AUTOWORKS.COM Rear Diffusers, Splitters, Front Ends and Carbon components
is there a diffrence in fuction or is it just for looks.

sum it up
just drill 3in holes or buy a diffuser?
 

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I never understood how this design works. I guess it would let the air flow more freely but if you wanna get real aerodynamic get a full underside diffuser
 

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on the older civics, air would catch on the rear bumper since it was open to the air moving underneath the car. Putting holes in the rear bumper would alleviate this problem. Of course a full diffuser would work better but that requires some decent skills with your hands and machinery.
 
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