Couple of mods today, pretty impressed.... - Page 2 - BMW 3-Series (E90 E92) Forum

SeanH · 02-01-2012, 12:35 PM

Wonder if BMW can plug into the ECU and spot if a map's been installed also if we installed a tuning box and removed it prior to service/warranty work etc, could they notice a box's been installed?

MEGA · 02-02-2012, 04:33 AM

215 is the highest I was recommended to go. Allowing for RR overread anything between 205 and 220 I'd be happy with

MEGA · 02-02-2012, 04:36 AM

If BMW really want to find out if the car's been mapped they will.

Someone more technical can correct me if I'm not quite on the mark here.. But.. All sorts of readings are kept to memory.. boost pressure over time, AFR, alot more averages we can't see on the iDrive (or hidden menu).

They can also see how many times the ECU was flashed and what the signature on the sender is, if you use OBD. (Again. I know I'm talking something close to the truth here but maybe not quite correct re: terminology.. )

A piggyback box is best as you can remove this and there's no trace on the ECU: But arguably not as a good a remap as it's just applying multipliers to settings..

e92_alex · 02-02-2012, 11:52 AM

+1 on getting that checked, I would start with another dyno run at somewhere else. When I had my 320d with bluefin (superchips) it came out at 215bhp.

02-02-2012, 04:33 AM	#24
MEGA Dieseasal Drives: LCI E92 335d M-Sport Join Date: Jan 2009 Location: Harrow, London Posts: 6,344 iTrader: (2)	215 is the highest I was recommended to go. Allowing for RR overread anything between 205 and 220 I'd be happy with __________________ Previously: 2003 Peugeot 206 1.6 8v \| 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. \| 2003 Nissan 350Z GT Coupe 286BHP Now:2010 E92 LCI 335d M-Sport

02-02-2012, 04:36 AM	#25
MEGA Dieseasal Drives: LCI E92 335d M-Sport Join Date: Jan 2009 Location: Harrow, London Posts: 6,344 iTrader: (2)	If BMW really want to find out if the car's been mapped they will. Someone more technical can correct me if I'm not quite on the mark here.. But.. All sorts of readings are kept to memory.. boost pressure over time, AFR, alot more averages we can't see on the iDrive (or hidden menu). They can also see how many times the ECU was flashed and what the signature on the sender is, if you use OBD. (Again. I know I'm talking something close to the truth here but maybe not quite correct re: terminology.. ) A piggyback box is best as you can remove this and there's no trace on the ECU: But arguably not as a good a remap as it's just applying multipliers to settings.. __________________ Previously: 2003 Peugeot 206 1.6 8v \| 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. \| 2003 Nissan 350Z GT Coupe 286BHP Now:2010 E92 LCI 335d M-Sport

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

02-01-2012, 12:35 PM	#23
SeanH Private First Class Drives: F30 320d Sport Melbourne Red Join Date: Jan 2012 Location: Leeds Posts: 131 iTrader: (0)	Wonder if BMW can plug into the ECU and spot if a map's been installed also if we installed a tuning box and removed it prior to service/warranty work etc, could they notice a box's been installed?

02-02-2012, 11:52 AM	#26
e92_alex Private First Class Drives: F10 Join Date: Apr 2009 Location: UK Posts: 172 iTrader: (1)	+1 on getting that checked, I would start with another dyno run at somewhere else. When I had my 320d with bluefin (superchips) it came out at 215bhp.