dark knight

Im thinking of it since it looks like the Manthey has it

EST

Kobalt, ask him.

Kobalt

Have it.

Not sure if it has any effect due to various circumstances.

dannyb

If you're talking about the underbody piece at the rear of the car, yes.

dark knight

was it easy to install? cost? change in ground clearance?

IPSA

Will probably create understeer w/o some front end adjustments.

Many are running " flat " wing setting already, i.e. we can add more DF with a simple wing fix but many have chosen not to.

On the Ring ( Manthey's back yard ) it may be a different story given the higher average speeds.

TRAKCAR

I wonder if it's easy enough to install at the track. Only way to tell if it's faster.

IPSA

Apparently bolts in but may require a nip and tuck here or there.

RobbieRob

I think its 10 or 12 bolts if I remember correctly. Yes, very easy, would just have to jack the rear up a bit to get more room to wrench. Some long tube headers might need trimming, but stock exhaust will not require any work. Also, FYI, the PDK trans cooler area has to be cut out to get air to it, 911R has manual and different trans bottom cooling.

SanDiegoDavid

I had it installed in June. I was worried about needing to add some dive planes up front to avoid understeer, but I haven't noted it. I have the wing, the sway bars and alignment favoring oversteer so the added rear downforce at higher speeds may be neutralized. I do like the look. Cost with install was $800. I have not noticed any ground clearance issues.

TRAKCAR

I should pre-install it and swap at the track to evaluate.
Seems cheap enough to try.

dark knight

that looks totally cool, I wonder if you could paint the edge of fins blue or silver or if that would look too ricey

Drifting

Do you just drive your RS to the track or C&C and back, or do you ever drive your RS around town, across rain gutters and speed bumps, etc?

If so it would surprise me if you didn't hit the diffuser fins on gutters and speed bumps.

SanDiegoDavid

Yes I have gone over some pretty big speed bumps, although I do go across diagonally. Same with exiting the parking garage at work and my condo, no contact with the fins, so far. As you can see there is clearance.

Drifting

Do you Park your RS in a condo parking lot? Do you have a private space? Is there a security door to the condo parking area?