[DonJuan]

How do you like it?

I had a RC GTS Black on my old 328d, which I loved the extra power, torque and fuel savings. Don't have that car anymore, and the re-programming is only $149.00, so I'm thinking in slapping it to the M4.

Just checking if someone here is already running one and can offer feedback?

Thanks!

[pateke]

I’m in almost the same situation. Had a GTS Black in my M440i, which I removed. Noticed a difference at once in the cars behavior, doesn’t seem as alert without the Racechip. A bit tame and almost “boring” (in loss for better words).

Hope to receive my ordered M4Cx end of September or beginning of October.

[Bostro]

Hey,
Im running! For the price is well worth it!
It will not rip you head of but is great resonable power improvement and so far no issues. Running map 7 and mostly Vpower Racing.

Colorado elevations

[FloridaM5]

I’m running it as well. Same situation too…had one on another vehicle and did the reprogram thing…very easy process.

It’s great. It adds just the right amount of fun I think. I may flash the ecu one day, but I’m happy for now. In stock form, the car was not quite strong enough for my taste. Running the racechip has made it pretty great.

[DonJuan]

Thanks all! It seems like it’s totally worth the $149.00 reprogramming fee, I’ll mail it out Monday!

[kgelfen360]

And then next logic step is CS TCU flash.

[NoSuchSol]

I'm only 2000 miles in so I'll attempt to hold off for a while.

I do want the CS flash when it's readily available. I did that with the THOR flash on my f80

[IronChad]

It’s ok for what it does, if you want to do it the right and safe way a true DME tune is the best way. Downside to this is sending out the DME to femto in Finland.. plus side is a 9 second car on e40.

[DieselG80XC]

The JB4 is the better option for piggy backs

[LongBeachDinanFan]

+1 RaceChip is garbage. Doesn't have CANbus or EWG so its easier to detect when removed too.

[pateke]

Will the racechip add any low rpm torque?

[mike@x-ph.com]

Originally Posted by pateke

Will the racechip add any low rpm torque?

it adds boost across the entire RPM range, including lower RPM

[pateke]

Originally Posted by mike@x-ph.com

it adds boost across the entire RPM range, including lower RPM

Thanks for the info Mike. Any numbers/chart on the added torque below 3K rpm?

Have to admit I really liked the low down torque with my M440.

[Bostro]

[QUOTE=pateke;30415077]Thanks for the info Mike. Any numbers/chart on the added torque below 3K rpm?

Have to admit I really liked the low down torque with my M440.

S58 was redesigned to manage higher rpms better so it is ment to be driven more over 3000/4000 rpms.
You want lower torque, go with previous engine S55 :-) or buy diesel or electric car

JB4 is stronger right away from lower RPMs but really so from all opinions this would be better path for you than RC. My opinion.

Good luck !

[kgelfen360]

Originally Posted by IronChad

It’s ok for what it does, if you want to do it the right and safe way a true DME tune is the best way. Downside to this is sending out the DME to femto in Finland.. plus side is a 9 second car on e40.

I would argue that RaceChip is much “safer” then unlocking your DME which can result in complete brick.
RC just adds a little more boost. It’s pretty safe to run it’s not best way but any means but it’s very reasonable for the price.

[M4Lou]

Originally Posted by Bostro

Hey,
Im running! For the price is well worth it!
It will not rip you head of but is great resonable power improvement and so far no issues. Running map 7 and mostly Vpower Racing.

Colorado elevations

Where, pray-tell, do you get Vpower racing fuel????

[TrentMeister]

Originally Posted by DieselG80XC

The JB4 is the better option for piggy backs

Every jb4 car I raced got smoked by my Racechip car at the time.

Including people running e30.

[LongBeachDinanFan]

Originally Posted by TrentMeister

Every jb4 car I raced got smoked by my Racechip car at the time.

Including people running e30.

Then there is something else going on because aggressive JB4 cars are able to get 10.1 in the 1/4 mile. Never seen a RaceChip sniff close to that.

[evidence]

Originally Posted by kgelfen360

I would argue that RaceChip is much “safer” then unlocking your DME which can result in complete brick.
RC just adds a little more boost. It’s pretty safe to run it’s not best way but any means but it’s very reasonable for the price.

The DME can be physically damaged during shipping which would brick it, I've not heard of this happening though. It's a pretty rugged unit being that it gets jarred around in the engine bay w crazy heat.

You really can't brick it via a flashing process though, if anything goes wrong, disconnected mid way though, corrupted etc, ECUs have 'bootloader session mode' where it sits just waiting to receive data.

[IronChad]

Originally Posted by kgelfen360

I would argue that RaceChip is much “safer” then unlocking your DME which can result in complete brick.
RC just adds a little more boost. It’s pretty safe to run it’s not best way but any means but it’s very reasonable for the price.

Can you link me to any threads where this has happened with a G80?

Zero issues with my DME tuned G80.. just sayin

Like I said, it’s ok for what it does.. adds a little bit of horsepower/torque.

[kgelfen360]

Originally Posted by evidence

The DME can be physically damaged during shipping which would brick it, I've not heard of this happening though. It's a pretty rugged unit being that it gets jarred around in the engine bay w crazy heat.

You really can't brick it via a flashing process though, if anything goes wrong, disconnected mid way though, corrupted etc, ECUs have 'bootloader session mode' where it sits just waiting to receive data.

All it takes is for you to forget to turn off software update (or BMW app on your phone updating and then pushing update) and it will get bricked if it gets pushed. That has been reported on here.

[evidence]

Originally Posted by kgelfen360

All it takes is for you to forget to turn off software update (or BMW app on your phone updating and then pushing update) and it will get bricked if it gets pushed. That has been reported on here.

Again the DME is in bootloader session mode, you can fix it yourself. I've done exactly this with bm3. The DME is never "bricked", it's just not booting fully and needs to be relocked.