When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Most weld to the front frame rail as shown in pic above
Kit I linked appears to use plates on floor method so it can be removed easier
but don't know how you would go on a C4 because front floor pan is plastic ; not metal like most cars
I still have a tiny bit to do on my cage, but it will be certified down to 8.5. Mine is a bit of overkill, but I plan on being able to have some serous fun with it. It is also a back halved car that will run a pair of 33X21.5 Mickey Thompson Sportsman Pro Tires, It has a 4 link rear suspension with a solid axle and a very narrowed rearend. Here is my build thread with a ton of pictures. The kit is from Jegs and will very little bending and a ton of massaging (I should have bought a tubing notcher rather than grind, test, pullout and regrind...) it is tight in the car, and just needs a couple of other things to make me happy. In the front where I took the front bar down to the frame lip (There is a pinch welded portion of the frame that sticks out the side of the frame, I took a piece of angle and welded it above the lip to the side of the frame, and welded it to the down bar. I am going to take a piece of thick wall tubing and run it under the lip for 8" to 12" each side of the bar and then I will be happy with the front part of the cage (other than I am going to put the front underhood bars in as well to make it a 12 point cage) If you have more questions or want to just talk about any part of it feel free to PM me your number and I will call you. (that goes out to anyone with questions...) If you want more pictures feel free to ask.
Thanks, Calderone! One of these days I'll get the subtleties of posting pictures figured out!
And it is an Autopower roll bar. It was in the car when I bought it, so I can't give any response with respect to rules compliance of 'welded in versus bolted in'.
The PO said the roll bar was just for safety's sake, and the GS wheels were for better traction, and the Bilsteins were to keep the ride from being too soft! That little old lady who just drove it to church on Sundays must have had a lead foot!