I have a late 2004 build. It currently has about 56k Miles. This list is quite long but here goes. BTW I have all the receipts.
Drilled wheel lug holes to accept longer grip lug nuts (8 threads instead of 3)
Drilled and slotted brake rotors and new pads
Rerouted clutch line over foot box with braided steel flex line
.391 LSD
Repaired broken rear end torque arm(s) by welding supplied kit.
2nd roll bar
New inside door latches (pulled apart)
Half round weather striping under hood
Chrome louvers
Speed Hut GPS Speedo
Speed Hut shift light Tach
VDO SAE reading gauges and transmitters
KYB rear shocks
VW Jetta front shocks
New reworked front shock spinals (completely worn out)
Overhauled steering rack and mounting blocks.
New ball joints
Steel brake hoses
Lexan windshield (2 cracked glass ones)
Moto Lida steering wheel
Sheep skin seat covers
Radiator Screen made at Ace Hardware, held in by Velcro
Stainless Steel Products Mufflers (gained 32 RWHP)
Hose clamps around rubber muffler hangers
Scupper drains in foot wells (It rains in CO.)
Cigarette Lighter outlet
LED turn, brake, running lights
Cool air ducts from brake inlet to both master cylinders
Remote Chrome
oil filter (cooling)
There's more but I'll have to remember them. It's almost like the late models now. ;o)