[John@BPC]

Hello F25 Owners!

We want to share some of our tuning options for your F25 X3. We develop our own tunes in house on our Dynjo Jet In-ground dyno, and tune using the DME only. No extra boxes or piggy back controllers necessary.

We have been tuning BMW's for 6 years now, and have become extremely proficient and successful in the N52, M57 (Diesel) and F10 M5 market. We also cater to the N55 and N20 based cars as well!






N55 Performance:


FACTORY
277 WHP / 289 WTQ

STAGE 1

345rwhp / 399rwtq
+68 WHP / +110 WTQ Gain over factory

STAGE 2
373rwhp / 420rwtq
+96 WHP / +131 WTQ Gain over factory
Modifications: Downpipe

To read more about the N55 F25 tune, visit here:
https://bimmer-performance-center.my...ars-dme-tuning

STAGE 1


STAGE 2


________________________________________________


N20 Performance:

FACTORY
225 WHP , 265 WTQ

STAGE 1
253 WHP 320 WTQ
+28 WHP / +55 WTQ Over factory

To read more about the N20 F25 tune, visit here:
https://bimmer-performance-center.my...ars-dme-tuning



To see a selection of parts for the F25 model, please visit here:
https://bimmer-performance-center.my...ns/x3-35ix-f25



Check out some pictures of our shop!







PURE stage 2 turbo installation

[CalCarNut]

Need to fix your N55 results/gains; you're off.

You mentioned the N52; with no turbo, how do you bump up the power?

[najnad]

What intercooler and downpipe did you use? What kind of results would you expect without those mods?

[John@BPC]

Originally Posted by CalCarNut

Need to fix your N55 results/gains; you're off.

You mentioned the N52; with no turbo, how do you bump up the power?

What do you mean that the gains are off? Could you elaborate more?

As far as the N52, yes with a header, intake and tune, there are significant power gains. (Mostly due to the tune).

John

[John@BPC]

Originally Posted by najnad

What intercooler and downpipe did you use? What kind of results would you expect without those mods?

I will get you guys a Dyno graph of one without the modifications and just a tune shortly

[CalCarNut]

Originally Posted by John@BPC

What do you mean that the gains are off? Could you elaborate more?

As far as the N52, yes with a header, intake and tune, there are significant power gains. (Mostly due to the tune).

John

Your quoted gains between stock and post tune are off-the math is wrong

So you are able to tune an N52? NICE!!!!!!!!

[CalCarNut]

John, in red:

N55 Performance:

FACTORY
277 WHP / 289 WTQ

STAGE 1
345rwhp / 399rwtq
+58 WHP / +117 WTQ Gain over factory (should be 68hp-not 58..and 110wtq-not 117)
Mods: Intercooler, Downpipe & BPC Software Tune

[John@BPC]

Originally Posted by CalCarNut

John, in red:

N55 Performance:

FACTORY
277 WHP / 289 WTQ

STAGE 1
345rwhp / 399rwtq
+58 WHP / +117 WTQ Gain over factory (should be 68hp-not 58..and 110wtq-not 117)
Mods: Intercooler, Downpipe & BPC Software Tune

Thanks, Fixed it!

[John@BPC]

Added Stage II numbers to original post

[malicem3]

This thread has enormous potential. Thanks for sharing John!

[John@BPC]

As far as the N52, yes with a header, intake and tune, there are significant power gains. (Mostly due to the tune).

[FSociety]

Hey thanks for posting these Baseline + Tune results.

Can we see the AFR graph ?
What is the stock boost and stg1 boost peak/redline, stg2 as well.

[John@BPC]

Originally Posted by FSociety

Hey thanks for posting these Baseline + Tune results.

Can we see the AFR graph ?
What is the stock boost and stg1 boost peak/redline, stg2 as well.

This was at 16 psi of boost. Bob is out of the office today so i will work on getting you the graph for the AFR asap.

Thank you,
John

[John@BPC]

Any Interest today?