I have a 2003 C4S that I was going to trade for a Ferrari but have found that it is a much nicer car than any Ferrari I have driven. With that being said I have decided to enhance it with Fabspeed's performance exhaust including the chip reprogramming.

Question one, only 91 octane is availble on the coast where I live and without an additive would this pose any issues?

The other enhancement involves a GT2 body package from two seperate vendors, Misha for the rear wing and RevoZport for the hood and front bumper. The car is jet black.

Any Input regarding these body Kits or Vendors?

 

I have lived in San Clemente for about 10 years. Nice to see I am not the only one. I run 91 Octane, and did as well in other cars requiring 93 and never had any problems. There is a shop up in Costa Mesa where I am looking to get all of my work done (I even have the same car as you in Seal Grey) done when I return. Look under the profile name of RSSbryan. He is one of the top guys there. Good luck.