Advice for 4 door 420i Grans Coupe

this price shd be for replica? about right. just make sure is from reputable vendor else you end up having fitment and quality issues.

Any comments regarding the following? Still sourcing around, one of the better quotes so far :

M Sport bodykit selling at $2350 with spray paint and installation.

$1550 for carbon fiber front lip, side skirt and rear diffuser.
Cf replacement side mirror cover - $298.
Cf double slate front grille - $288.
Cf boot lip spoiler - $275.
 
Yup and now everytime there's a map update you gotta go back to the workshop again.

Plus did he register the account to you ? I.e.your id and pw? Reason being is you get 1 free xfer or you can sell it to 1 other person next time approx 300usd by current market rates.

Remember to do the transmission tune as well as that comes free with your license of bm3
 
Thanks guys.... the bodykit etc is definitely replica haha, I’ve never had the habit of spending so much on original bodykit and parts. As for the Bm3, I haven’t installed yet, due to this Covid cb, but I also plan to put in the armaspeed carbon cool air intake, eisenmann exhaust with dual tip and the FTP charge pipe and only then will I finally do the BM3. And thanks for highlighting the transmission tune. How do you know whenever there is a map update?
 
Can I check, why should there even be an update? What’s the purpose? If you do a particular mode and have tuned it accordingly, whats the purpose of a new map update, unless you do further mods or additions?
 
for BM3 no need wait for the rest of the mods.

as far as i know, the update not so frequent la. and may not be applicable. there are 2 stages for BM3, stage 1 for most and if you have downpipe, then stage 2. is basically install and forget. google for it. there's a lot of literature on BM3.

Thanks guys.... the bodykit etc is definitely replica haha, I’ve never had the habit of spending so much on original bodykit and parts. As for the Bm3, I haven’t installed yet, due to this Covid cb, but I also plan to put in the armaspeed carbon cool air intake, eisenmann exhaust with dual tip and the FTP charge pipe and only then will I finally do the BM3. And thanks for highlighting the transmission tune. How do you know whenever there is a map update?
 
For BM3 stage 1 there is NO requirements for mods, i.e. a stock car can go to stage 1 immediately. For stage 2 a FMIC and Downpipe is rec to get the most out of your tune. Each different tune thereafter might require supporting hardware before you can fully maximise it.

You can also request for a custom tune where you give the tuner your hardware upgrades and they can customize a map to your individual requirements (this cost more).

There are multiple updates even for stage 1 maps changes are normally boost control timing etc etc you can check the change logs. It is NOT install and forget as there are constant changes for even off the shelf maps which improves HP torque drivability.

All information is available do read up as you go along as most people who go to a workshop to get BM3 will have little understanding behind each individual tune and its requirements. Do remember at the end of the day that the n20's engine is limited and things like the arama intake as well as the exhaust will not make much of a difference but will cost a lot !

The stock BMW intake is actually very good if anything a drop in k&n airfilter is sufficient to improve breathability. The stock box also is a cold air intake somewhat and will not suck in hot engine bay air unlike most open pod setups.

If sound is all you want, and you can do something else better with 3.2k for a simple axel back exhaust just increase the volume of the active sound, so called fake exhaust sound coming from your speakers can be done with coding.

If you're looking for pure performance gains stick with the following
Wagner Intercooler - $1600
ER Downpipe with racing cat - $1500
BM3 stage 2 tune with 93ron (98 octane)
Operate stock exhaust - $??
Any 98 octane petrol - $2.4/L
K&N drop in filter - $1xx
Better or wider tyers

BM3 change logs and updates
https://bootmod3.atlassian.net/wiki/spaces/BCS/pages/485130241/bootmod3+Release+Notes

Full Diagnostics and Coding and battery registration
https://www.mycarly.com/

Codings by Bimmercode get the OBD reader and app and DiY
https://bimmercode.app/cars/f32/

Intakes
 
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My engine is a B48, the previous gen was N20, my car no boost pipe, technically the intercooler is built to the engine ..... so air to water intercooler, as compared to the traditional air to air intercooler of previous gen .... lucky I researched a bit more, was considering of changing boost pipe and intercooler hahhaha
 
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