Mick14

Getting the new aero installed. The 4" splitter and undertray are tied to frame and is very sturdy. Going to paint in a couple weeks. Photos to follow.

Hi Volts Z06

This is without a doubt the best splitter around. Instantly corrected the pushiness I couldn’t dial out with a big wing.

96CollectorSport

I've installed 2 of the ACP bumper/splitter/undertray set-ups over the years and I would argue it's the worst fitting option I've seen. They will function properly but they take a lot of extra work to install correctly - the first one I installed had the front of the splitter tipped up slightly rather than angled down (I didn't know any better at the time) the second one I installed had the same issue which required me to fabricate spacers between the bumper and splitter for the angles to come out correct. Also since the splitter is fixed to the bumper it makes it difficult to make the undertray adjustable. The units I installed were done between 2009 - 2013 so maybe the quality has gotten better since then.

I've also installed 4 of the Blackdog bumpers and undertrays and in my opinion it is a much smoother install
The Blackdog set-up you don't have to use their undertray - the bottom of their bumper gives you a flat surface to mount any undertray you want. It is also much easier to make the undertray adjustable - it is also a lot lighter.

After installing both the ACP and the Blackdog - I wouldn't go back to ACP.

The above set-up looks very good and it doesn't appear as though they needed to space out the splitter like I had to.

Hi Volts Z06

I probably should have noted that I didn't use the ACP undertray. I don't believe in carbon fiber for something that's expendable so I use a lightweight marine grade plywood called Okume, which has another vendor's carbon fiber diffusers built into it. That allows me to run it all the way back to the bolt holes vacated by the spring perches. Add in a pair of support rods in front and it's strong, adjustable and cheap to replace when needed.

Mick14

Yes, they have it mounted so that the undertray is adjustable. If I tear this one up I will probably consider going with a homemade undertray. Would you mind sharing whose diffusers you used?

Hi Volts Z06

I got the tunnels from 383 here on the forum. Great quality and great price.

Jfryjfry

More rear wing will definitely exacerbate a front push.

Glad it was remedied!