Thanks to Aerosim Research and Steve El Super Mechanic in Costa Mesa, the springs were installed quickly

The rough steps to installing the springs are as follows:

1. Remove rear seats: undo the 12mm bolts, and first remove the bottom cushion, followed by the back cushion.

2. unbolt the 2 rear strut assemblies. Picture below is the passenger rear side.



3. With the strut assemblies taken out, remove the "top hat" (Steve used an airtool, which helped A LOT). For the stock springs no spring compressors are needed.



Note the height difference on the stock vs. H-Tech spring (rear), also note that the springs come with these plastic pieces in strategic places to prevent grinding noises.



4. Install the springs, put the "top hat" back onto the strut/spring assembly, and install back into the car.



5. The fronts are easy: no need to remove the seats at all. Note the front springs' height difference.



And the result: voila!







The ride is almost supple, but you come up to the progressive portion rather quickly if you're doing spirited driving. Overall I'm very happy with the springs. No noise at all, and it made the car's overall look much better. I'm waiting for my Rota Torques (thanks to Subydude!) and the car's exterior will *almost* be complete. Gotta paint that side skirt, maybe a Greddy front lip

 

i think it's the angle - if you look at it from the side directly it looks pretty even. i'll take some more pics later

 

Some more pictures: