Why would you want -5 degrees when you plan to drive the car to the track?
I gather this is a road registered car since you mentioned this?
Depending how far you need to travel to the track, you will wear out the inside of your tyres, not to mention your braking will suffer on track as well.
I run -3.25 degrees up front and that is enough for use at SMSP which has long high speed corners. I get pretty even tyre wear. A little more on the outside.
It is also enough negative camber to wear down the insides of tyres driving Sydney to Melbourne and back as I found out from Fanfest. That's with 0 front toe!
I installed ISC Racing Delrin offset bushings in the upper arms to get the camber required.
I can get a bit more negative camber but don't do it as the car also does Motorkhanas and driver training days on Street tyres plus is dríven to all the track events.
The car has Tein Street Flex Coilovers 7kg/6kg/mm F/R running at about 115-120mm to the pinch welds with 225/45/15 tyres. I have the standard front SE 23mm sway bar and no rear.
Link to ISC Delrin bushings
https://iscracing.net/offset-bushing-installation/The benefit of these over polyurethane is you can lock them in place with a grub screw without them tearing up over time. They are stiffer, but being in the upper arm it's no big deal.
Mine have been in for a while now and have not budged. The only potentially noisy part is the big factory long bolt washers rubbing on the face of the bushings. I have worked out through trial and error that Penrite Moly Grease works well at stopping this and it does not wash away. It has lasted more than a year so far with wet Motorkhanas and track days. No grease is required around the bushing, just the face where it touches the washer.
If were to do the same project again I probably would go with the extended lower ball joints, which I didn't see around when I did my negative camber increase through the bushings.
