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      09-27-2018, 10:56 PM   #1
997paul
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2014 F25 X3 35i N55 MSport FBO modified and tuned (before and after dyno)

Starting a new thread for my new build.

Previous modifications when I bought the X3 new:

BC Forged HB09 in brushed black on gloss black rim
Front 20x9J ET+35 (mild concave) on 245/40R20 Pirelli P Zero non RFT
Rear 20x10.5 ET+40 (deep concave) on 275/35R20 Pirelli P Zero non RFT
Lowered 30mm front & rear with Eibach Pro Kit (Part #: 10-20-024-02-22)
Supersprint catback exhaust
Hartge ECU
Hartge ECU accelerator booster
Burger Motorsports intake
Brembo GT Big Brake Kit for F25 X3 35i- 6 Piston Front 380mmx32mm 2 Piece. Drilled Rotors with Red Calipers
Stoptech Drilled Sport Brake Rotor X3 F25 35i Rear
EBC Brakes Redstuff Low Dust Ceramic Rear Brake Pads
Carbon fiber print wrap on bonnet, roof and spoiler

Old build thread here:

https://x3.xbimmers.com/forums/showthread.php?t=888184

The Hartge piggyback died and Hartge the Company went broke it seems.

The X3 is not my daily driver and despite its age has a super low 10,000 km on the clock. I bought it new with all the options I wanted and decided its worth keeping and having some more fun. So I’ve embarked a new build:

Michelin Pilot Sport 4S tread
Pure Stage 2 Turbo upgrade
FTP Chargepipe and Boostpipe
Ruff custom upgraded FMIC
Ruff custom cat less downpipe
Ruff custom oil cooler
aFE Magnum Force Stage 2 cold intake
Precision racewerks ignition coils
Colder plugs for tuned engine
Walbro LPFP upgrade (thank you to forum member Hardparker for the advice)
KW DDC Plug and Play Coilovers with EDC BMW X3 F25
MHD Flasher custom tune

Will be interesting to see what I get out of the N55 without internal mods.

December update:

Attached is the baseline dyno and dyno after parts but before tune. Check back in the new year for the next dyno run after the custom MHD tune is loaded.
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Last edited by 997paul; 12-05-2018 at 12:18 AM.. Reason: Embedded before dyno as a JPEG
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      09-27-2018, 10:56 PM   #2
997paul
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Reserved for pictures and dyno
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Last edited by 997paul; 09-28-2018 at 03:08 AM.. Reason: Adding photos
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      09-27-2018, 11:18 PM   #3
997paul
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Reserved for pictures
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Last edited by 997paul; 10-15-2018 at 02:33 AM.. Reason: Adding photos
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      09-28-2018, 03:09 AM   #4
997paul
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Reserving for more pictures
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      09-28-2018, 09:00 AM   #5
neonmods
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Nice,

Very interesting !!

how much does it cost for Ruff custom cat less downpipe

Charge pipe and FMIC look nice !
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      09-28-2018, 09:13 AM   #6
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those calipers and brake pads.. O_O
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      09-28-2018, 04:22 PM   #7
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Beautiful brakes! I'd like to see logs of that intercooler in use. There are so many variations of that style, and they don't all perform equally. I'd bought a Phoenix and replaced it with a VRSF Race. The Phoenix was a turd, but the VRSF is magic.
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      09-28-2018, 05:15 PM   #8
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Nice build! Even the previous build too. Also curious how that FMIC performs. 👍🏼
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      10-02-2018, 10:10 AM   #9
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And since no one commented - good taste on the watch....
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      10-10-2018, 10:58 AM   #10
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cant wait to see what power it puts down!
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      10-10-2018, 11:03 AM   #11
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manual transmission swap. Do it !!


nice work mate
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      10-10-2018, 11:40 AM   #12
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Quote:
Originally Posted by oVeRdOsE. View Post
manual transmission swap. Do it !!
Is that even possible on these cars? I'd do it to mine in about 5 years.
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      10-10-2018, 12:56 PM   #13
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Quote:
Originally Posted by doodlebro View Post
Is that even possible on these cars? I'd do it to mine in about 5 years.
I wish, I do not drive automatic, but I had no choice for the X3, kids.

the choices I had for fun, manual spacious cars, awd , were:

- volvo v70 R (last built in 2007 , too old)
- bmw 328 xi e91 wagon ( try to find one, good luck I ve searched for a year)
- Audi A4 avant (ends 2008, took me 2 years to find one, I own one as a DD, I'm happy).
- Cayenne (rare as f, try to find one in good shape and low mileage, good luck)

I ended up with a m pack, blue on chessnut brown, low mileage, n55, X3.

This car has everything that I want but the manual transmission (awd, powerful, somewhat reliable).

with cash, a lot of it, I believe its possible, since the 335 had the x-drive 6 speed transmission.
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      10-14-2018, 05:16 PM   #14
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Do the F30 series parts for downpipe, chargepipe and intercooler fit the F25?
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      10-14-2018, 05:33 PM   #15
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Quote:
Originally Posted by subieworx View Post
Do the F30 series parts for downpipe, chargepipe and intercooler fit the F25?
Check realoem.com
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      10-14-2018, 06:09 PM   #16
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Quote:
Originally Posted by subieworx View Post
Do the F30 series parts for downpipe, chargepipe and intercooler fit the F25?
Downpipe is definitely different (connection to mid-pipe is different), I think the charge pipe is as well in terms of the bend and length.

Intercooler requires custom brackets on almost every install that has been done on this forum, but otherwise most F30 ICs will fit.
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      10-15-2018, 02:35 AM   #17
997paul
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Added a pic above of KW coilovers which just arrived. Will be fitting everything at the end of the month. Will post more pics and a dyno once the tune is sorted.
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      11-09-2018, 01:06 PM   #18
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How is this coming along? Excited to see the results!

Did your car come with oil cooler or are you doing just upgrading to Ruff custom oil cooler?
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      12-05-2018, 12:20 AM   #19
997paul
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Updated my original post the with the dyno result after the parts have been installed but before tune. Check back in the new year for the dyno after tune. Will also post some pics of the parts install later.
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      12-05-2018, 10:33 AM   #20
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Quote:
Originally Posted by 997paul View Post
Updated my original post the with the dyno result after the parts have been installed but before tune. Check back in the new year for the dyno after tune. Will also post some pics of the parts install later.
Numbers are with stock tune and all the bolt on parts?
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      12-05-2018, 06:37 PM   #21
997paul
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Quote:
Originally Posted by 997paul View Post
Updated my original post the with the dyno result after the parts have been installed but before tune. Check back in the new year for the dyno after tune. Will also post some pics of the parts install later.
Yes, stock tune with all the bolt on parts. Got a chance to drive it a bit more today. Even with stock tune it feels a LOT more responsive then when I had the Hartge running. Mind you I've been driving my Tesla X for the last few months and so it good just be my perception. Also the exhaust, turbo and intake sound is incredible. Really adds to the experience. Pity the driver when the world goes full electric.
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      12-06-2018, 12:08 PM   #22
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I'm just a bit confused. The numbers are with the ps2 upgrade but just stock tune?
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