Jack don't shoot CR's for the sidepipes..think ofor pick something else! These sidepipes are used by a lot of Cobra manufactures.
We use Carrera for street/home
style use, then jump right to Penske's. (We're very luck to have a Penske engineer helping us)
PRO also make a good combo.
Our lowers use a small triangle that we do weld in. Never, ever had a problem with CR 's frame, even with the Viper motors.
DV
P.s we did the 1.3 at Honda's test track with Yokohama full DOT street tires!