Obviously, this needs more content, so please PM your suggestions, or contribute to the Performance thread V.
124 performance topics
Performance discussion thread
Track Threads
Road Atlanta 500E
Brakes
ASR defeat
Sport shocks and drilled/slotted rotors
Best Brake Upgrade for W124 300E
Engine
Turboed 300CE
Installing a FMIC on the 124
OM606 swap
Manual boost controller
M103/M104 Headers
Suspension/chassis
How to choose rubber spring pads?
Sportline vs H&R
Bilstein sport vs MB Sportline.
Eibach Spring Part Number
Bilsteins Sport or HD
Wheels and Tires
Factory rims
W124 wheels/tires
500E wheel fitment/offset
OEM Wheels chart
Body modifications, AMG, & tuners
AMG Wide Body Coupes
Widebody Lotec turbo in Japan
Articles and references
W124 press articles
w124performance.com articles library (courtesy of gsxr)
Paint, interior, and option codes
400E vs 500E, the real differences
500E / E500 resources
500E for sale thread
500e made by porsche? really
500E wheel fitment/offset
headlights 500E, regular W124 interchangeable ?
AMG pedals for W124 Automatic Transmission
500E rear seat question
Will R129 Rims fit 500e?
1992 500e wire harness