Don't use ramps to raise your Saab!
I found this out the hard way when I crushed my front right fog light case. I got away with ramps a few times, but on the fourth time the rim of the ramp that stabilizes the wheels rubbed against my lower bumper and shattered the fog light glass cover. Actually it exploded when it was compressed. I think that other ramps exist that are not as steep or do not have wheel guards, these might work okay but be careful.

Bringing a wire or tube through the firewall is easy.
There is a rubber stopper located about 6 inches above the brake pedal.
Use pliers or a screw driver to poke out the rubber stopper, cut a hole in it and replace it back into the fire wall to keep the wires from rubbing against the sheet metal. The hole for the rubber stopper is large and can handle multiple wires. Currently I have 3 wires going through the hole, an 8 gauge power wire, boost gauge pressure tube and a thermocouple wire that measures intake temperatures.

If you have not installed the Viggen intercooler when you change the coolant fluid you should purchase the newer style radiator hose and install it. It goes on the passenger side and cost $11 from the dealer

This is more of a personal issue than a tip, but I got tired of having these scrape over speed bumps. Originally they were designed to keep stones and debris from getting kicked up into the rear suspension, but this applies more to rallying than daily driving. The flaps are held in place by two nuts, adjustable pliers work fine and the flaps can be removed in 2 minutes.   Another Explanation

There are several modifications that require the removal of the front bumper in order to perform them. Removing the bumper is very easy. First remove the grill, then each head light is held in place by two torx (alan) head screws and a third screw which holds in the turn signal assembly. With the front lights removed you will now have access to the 2 large bolts which hold the bumper in place. Before removing these however you will need to remove two screws, one inside each tire well which attaches to the edge of the bumper. Then check under the bumper to see if there are any plastic panels which attach to the bumper. Disconnect the fog lights and unclip the temperature sensor which hangs down in front of the intercooler. Now you can remove the two large bolts and pull the bumper out.