F90 M5 vs E63s
It's my car, ought to be able to do what I want, within reason of course.








A proper tune is as if the computer was programmed for the car to output those power levels from the factory without intercepting signals, etc.
Spacers will look good on the car but without the drop the wheels might look funny being so pushed out the fenders which will accentuate the gap visually. Supreme has tons of BMW spacers which I used on both my M5's and my F80 M4--- I think based on your pictures you could run a 15mm square setup (05x120 bolt pattern) and Supreme will let you test them out.
The Internet is always the source--take a look for yourself, the JB4 is well respected. Vendors such as Dinan are far too conservative so many reverted to actually stacking the tunes--a little scary but the results speak for themselves.
I coded all of my own cars myself--the learning curve isn't that steep.
Last edited by limeypride; Mar 29, 2018 at 11:18 PM.




I also used VF on my F82 M4.... prior to that I used OE for my E63 M6, E92 M3, and E46 M3. VF is probably better known for their R8 tuning and superchargers but have made strides in the BMW ECU world
Dean I have no doubts about the JB product (I believe the internet here LOL) but have never tried them as Ive always gone the ECU fashion, my post was directed to Sylvain the OP who I know. The fastest F10 trapping is Allmotor2000's at around 140 mph. I dont remember what tune he runs but he has a hell of alot of mods to get there. For tune only guys like me and as many as Ive done (30 plus cars with some having more than one) its just what I choose to do (ECU).
Last edited by Vic55; Mar 29, 2018 at 11:39 PM.
The Best of Mercedes & AMG




I tried Dinan once... 2 days later, I stacked my existing JB unit on top of it with a conservative additional boost to restore the power loss. That was the end of my foray into BMW ECU tunes...




I tried Dinan once... 2 days later, I stacked my existing JB unit on top of it with a conservative additional boost to restore the power loss. That was the end of my foray into BMW ECU tunes...
Sylvain I really can relate to this quote you did over at M5Post as I just picked this up for the summer... what a fun ripping car and I tuned it (GIAC) so its even more "peppy".
Pretty harsh. The 911 GT3 I have rides better on the bumpier roads.
The F90 still rides sporty but more like a 911 which is sporty but still comfortable when the road isn’t freshly paved.
Best analogy is the F90 rides like my 911 GTS and the E63 like a 911 GT3 RS on bumpy roads.
Hope this helps
Last edited by Vic55; Mar 30, 2018 at 10:49 AM.
Sylvain I really can relate to this quote you did over at M5Post as I just picked this up for the summer... what a fun ripping car and I tuned it (GIAC) so its even more "peppy".













I'm sure someone has put pressure transducers in the exhaust pipe sections before. Would be interesting to see the running display of the exhaust impulses as the various cylinders fire.
Seems like an interesting math problem to find the right length/shape of pipes to get the desired sound at a problem RPM. Tuning for ideal sound across a range may require active components (doesn't the Mercedes performance exhaust do this?)
If only one had the time . . .
Last edited by E634Me; Mar 30, 2018 at 01:44 PM. Reason: Add missing thoughts.




Last edited by Vic55; Mar 30, 2018 at 02:03 PM.




