Dirkbg
Seasoned Member
Yes, I upgraded to the CF front splitter, dive planes, and rear spoiler. I used the Tapout rear spoiler which is identical to the OEM, but I used the OEM nose parts. Originally I ordered the front bumper cover with the dive plane reinforcements, but the body shop paint didn't match the car so I swapped the reinforcements over to the original bumper cover and cut the slots myself. I have it all documented here: Carbon fiber PN database.What do you mean by upgrading to CF1? Like you got all the bumper reinforcements and everything or replaced your front bumper?
From what I understand there is a pretty big difference in front bumper rigidity for CF1 equipped CT4s.
Are you just going with the splitter and not messing with the deflectors (dive planes)? I know they say the deflectors need a support for them in the front bumper cover, so on the gmpartswarehouse page I saw this crazy thing:
View attachment 17412
Bumper & Components - Front for 2022 Cadillac CT4 | GM Parts Warehouse
www.gmpartswarehouse.com
So the standard (non-CF) bumper cover is $628.10, but the one with support bracket for CF is only $198.79? If that's true, I might get one just in case I decide to go with a CF1 upgrade to my 4BW. There is the extra cost of...
Also some tips for the rear spoiler here: Carbon fiber PN database.
I ended up spending more than I needed to had I known more at the start. In particular, I could have saved money by using the dive plane bumper for parts for the original bumper, and I also had the nose re-ppf'ed before I changed my mind to use the original bumper cover.
Price list that I paid for everything (not including the redundant ppf and body shop paint of the replacement bumper cover):
GM Parts
Part Number Part Name Price Quantity Total
84667808 Air Deflector $7.46 1 $7.46 (plastic underbody vents for the front brakes}
84667807 Air Deflector $5.96 1 $5.96
85563054 F Fascia $729.98 1 $729.98 (carbon splitter)
84996873 F Deflector $590.16 1 $590.16 (Dive Planes)
84996874 F Deflector $619.67 1 $619.67
84586281 F Deflector $577.47 1 $577.47 (Wheel air deflectors)
84586282 F Deflector $577.47 1 $577.47
85153560 F Fascia $301.20 1 $301.20 (Bumper cover. Buy it locally, shipping costs are insane)
Core Exchange $75.00 $75.00
Tapout Tuning Parts
Tapout Tuning CT4-V Blackwing $1,795.63
Carbon Fiber Extra Aero Rear
Spoiler