Originally Posted by lowbudgethero
what is the purpose of this car?
That's the key question.
A ton of suspension and braking mods won't matter much if all you want to do is go fast in a straight line. Thicker ARB and maybe some springs and call it a day. That money can be spent on power.
On the flip side...
If you like actually driving the car hard, and intend to do any track days (time trials, HDPE, etc) then you'll want/need every suspension mod under the sun just to improve handling under current power levels. As a minimum, you'll want to improve the brakes with bigger rear calipers and discs, and better pads all around.