Here's our pride & joy; mods:
* Alpine/PPI/MBQuart sound system (actual weight likely 100 lbs)
* Synthetic fluids throughout
* 17" X 8.5" AMG wheels, shod with Pilot XGTZ4 245/45-17
* Cryotreated OE brake rotors
* K&N air filters
* PAD chip (apparently useless, as Jim will attest)
* Best 0-60: 5.08 (per Gtech)
* Best 1/4 mi: 13.8 @ dragstrip; 13.38 per Gtech (on a cold night)