2009-2014 Z Speed undershroud

Rusty

Who you kidding. You have to use the Zspeed undertray with the APR splitter. The splitter only goes so far back. Draw a line at the front bottom corner of wheel well to the other side. That is far as the splitter goes. The Zspeed undertray helps support the splitter. The stock tray doesn't. I've been playing around with installing the splitter for a couple of months now.

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Zalot

Just asking as i have been toying with the idea of adding nismo undertray or the apr too. I cant really decide which one cause they are both expensive. I am really trying to save where i could at this point. This platform is so expensive to mod with very little return/gain. The z speed looks like a better option but the apr has less weight so if it could provide same aero dynamics it might be a good idea that is why im asking but obviously the z speed provides more structural rigidity.