Originally Posted by kenney255

So finally showed up! it took about 2 hours to install and fairly straight forward. Overall pretty happy with the quality and no issues with fitment besides sneaking the silicone 90 from bumper space to the engine bay. It seems like it ovals the coupler but id imagen even the Z1's would do this as well unless you trimmed the opening.

As far as performance I never did a base line before and after so I cant give actual numbers. I can tell you in comparison to the K&N Typhoons I replaced these with I feel a considerable difference in the mid range power .