M5 Expert (>4000)
Join Date: Feb 2001
Location: west palm beach. fl.
Thanked 1,622 Times in 1,229 Posts
I'll be really curious about your long term st40 impressions. Do you track your car? I had some knockback issues on my STI with ST40 on the track even though they felt great on the street. I haven't seen many (also haven't looked for any) reviews of the ST40s on the M5.
Have the ST40 front only kit for about 10 years. No tracking.
Pedal feel and initial bite are drastically improved. Much more confidence and easy to modulate. I did add stainless steel braided brake lines and run RBF 600 brake fluid. Makes even street driving much more enjoyable.
Dinan Stage 3 suspension, SS jet coated headers, ESS SC kit w/ 1 range colder NGK's, 92mm pulley, 440 Big Greens, TTFS alpha N tune for meth, RK plenum plates, SBC Endurance Stage 3 Kevlar performance clutch setup, "Jed" lightened DMFW, open brake ducts, TEC cupholder, U.S.(Euro style) tilt/slide armrest, 6k HID fogs, Umnitza bi-xenon flamethrowers w/6k super white low beams, rear fogs, V1/Stealth1, dual head LI, 2.65 diff w/40% lockup/2x dynamic, compact spare, M5 logo trunk carpet, Euro trailer hitch, Mocal oil cooler, ACS type rear spoiler, Rogue custom SSK and tranny mounts, ST 355 BBK (fronts), BP sway bar brackets, Bluetooth retrofit, Speedhut boost gauge (20 psi), Dinan TB's and VS, KB BAP, Howerton/HFS-3 Aquamist WI trunk setup (50/50), with 2nd gauge in rear view mirror, aftermarket trunk mounted sound system integrated into stock unit (amps, crossovers, sub and speakers).......