How to push more power without a tune?

phillipwarner · 01-24-2022, 01:02 PM

Been reading some scary stuff about cars with JB4 removed getting flagged and I have 3 years left on my 440i warranty. Is a downpipe really all I can do? Really want some more power without voiding warranty.

thejeremyman9 · 01-24-2022, 01:37 PM

What you are seeking doesn't really exist. Any (non-BMW approved) power mod has the potential to void warranty (for powertrain/related comments), be it software or hardware. This includes a downpipe. I'm not saying installing a DP is automatically going to cause you to have warranty claims denied, since the dealer essentially needs to show that your mod caused/contributed to the problem, but a DP is not without risk. Also, the benefits of the DP aren't as significant when you do not tune.

oem.plus_440gc · 01-24-2022, 02:33 PM

Could always go for the MPPSK package from BMW. Catback exhaust and tune direct from BMW and covered under warranty. Should add about 30 hp and torque. Should run about $3,000 from what i've read.

Skyhigh · 01-24-2022, 03:43 PM

Option 1: MPPSK (+34PS, + 50Nm, worth it even just for the exhaust), full warranty retained
Option 2: Downpipe (minimum risk, no traces; + ~20PS, + ~20Nm)
Option 3: MPPSK + Downpipe (you do the math)

There are no other options (which would give you any meaningful increase of power and/or torque)

HarryTee · 01-24-2022, 04:17 PM

How to push more power without a tune?
All of the above. Also: Give it more gas! (Sorry, couldn't help it

)

BMWILUVU · 01-24-2022, 04:25 PM

Do you drive around in Sport+ all the time?

anotheran · 01-24-2022, 06:44 PM

Quote:

Originally Posted by oem.plus_440gc

Could always go for the MPPSK package from BMW. Catback exhaust and tune direct from BMW and covered under warranty. Should add about 30 hp and torque. Should run about $3,000 from what i've read.

This. Otherwise need to pay to play.

Next option is sell car and buy m440i

McGyv3r · 01-24-2022, 06:57 PM

You may also be able to go with a Dinan piggyback or a Dinan tune, I don't know how they relate to the BMW warranty though.

Honestly, your best bet for a b58 car is BMW's MPPSK. You may be able to save some cash by installing everything but the tune by yourself. Then again, I read a story about BMW denying a warranty claim on a self installed kit.

If you want significantly more power with a warranty, buy an M4.

phillipwarner · 01-24-2022, 07:03 PM

Quote:

Originally Posted by BMWILUVU

Do you drive around in Sport+ all the time?

Yes

AllaVodka · 01-24-2022, 07:28 PM

Have you tried to dip it low, and then pick it up slow?

Pussiwillow · 01-25-2022, 12:36 AM

Quote:

Originally Posted by AllaVodka

Have you tried to dip it low, and then pick it up slow?

Lol 😂 nice

eluded · 01-25-2022, 01:15 AM

In the year 2022 there is not much you can do without voiding your warranty. Just wait for that expiration date.

HFW003 · 01-25-2022, 01:25 AM

M4

thejeremyman9 · 01-25-2022, 12:01 PM

Quote:

Originally Posted by eluded

In the year 2022 there is not much you can do without voiding your warranty. Just wait for that expiration date.

Or don't wait and just tune it now

I went through the same thing when i was in CPO warranty. Think about it this way - if you tune/mod while you are outside of warranty, if something goes wrong, 0% chance of it getting covered. If you tune/mod while you are in warranty and something (powertrain) related goes wrong, you have a chance of it being covered. Also, if you believe that the tunes/mod don't really increase the chance of causing an issue in the first place, then what reason is there to wait? Any "existing" issues with the car shouldnt be a problem, unless the dealer can prove the tune/mod caused them.

Also, to be clear, your warranty is not an on/off switch. Anything unrelated to your tune or mods is still 100% covered by warranty. I went in for several CPO warranty claims, from the windshield cowl to OPG leak to park brake cable clip and had 1000s of $ in repairs covered while tuned with numerous hardware mods installed.

It all depends on your risk tolerance and desire for more power.

BMWILUVU · 01-25-2022, 12:36 PM

Quote:

Originally Posted by phillipwarner

Yes

Ok then you are in trouble. LOL. Safest way to scratch the itch is what Skyhigh posted above.

eluded · 01-28-2022, 01:21 AM

Quote:

Originally Posted by thejeremyman9

If you tune/mod while you are in warranty and something (powertrain) related goes wrong, you have a chance of it being covered

If it's the motor it's close to 0% with the latest ITSA software. BMW is the one to reimburse the dealers and they will catch it. Have you heard of anyone recently that's had a warranty motor with the tune?

thejeremyman9 · 01-28-2022, 12:46 PM

Quote:

Originally Posted by eluded

If it's the motor it's close to 0% with the latest ITSA software. BMW is the one to reimburse the dealers and they will catch it. Have you heard of anyone recently that's had a warranty motor with the tune?

I agree motor is close to 0% if you have flash tuned. Might be higher chance if you just had hardware mods (especially if you reverted back to stock) but OEM software. I've heard of people getting new manual transmissions due to 1-2 syncro while tuned/modded, but not engines.

shoman24v · 01-28-2022, 04:02 PM

Only race going downhill

01-24-2022, 01:02 PM	#1
phillipwarner Private 13 Rep 53 Posts Drives: 2019 440i Join Date: Jul 2020 Location: Los Angeles iTrader: (0)	How to push more power without a tune? Been reading some scary stuff about cars with JB4 removed getting flagged and I have 3 years left on my 440i warranty. Is a downpipe really all I can do? Really want some more power without voiding warranty.
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01-24-2022, 01:37 PM	#2
thejeremyman9 Major General 4361 Rep 7,602 Posts Drives: 2015 BMW 335i Join Date: May 2019 Location: Cali iTrader: (0)	What you are seeking doesn't really exist. Any (non-BMW approved) power mod has the potential to void warranty (for powertrain/related comments), be it software or hardware. This includes a downpipe. I'm not saying installing a DP is automatically going to cause you to have warranty claims denied, since the dealer essentially needs to show that your mod caused/contributed to the problem, but a DP is not without risk. Also, the benefits of the DP aren't as significant when you do not tune.
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01-24-2022, 02:33 PM	#3
oem.plus_440gc Lieutenant 353 Rep 517 Posts Drives: 2019 440i XDrive GC Join Date: Oct 2021 Location: New Jersey iTrader: (0) Garage List 2019 BMW 440i GC xD [0.00]	Could always go for the MPPSK package from BMW. Catback exhaust and tune direct from BMW and covered under warranty. Should add about 30 hp and torque. Should run about $3,000 from what i've read. __________________ Current: 2019 440i xDrive Gran Coupe - Alpine White, Coral Red Dakota Leather, 8AT, MSport, THP, BM3; 2015 X5 35i xDrive - Mineral White Metallic, Mocha Dakota Leather; Previous: 2015 Subaru WRX - World Rally Blue, Premium, FBO+Tune
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01-24-2022, 03:43 PM	#4
Skyhigh Brigadier General 1882 Rep 3,869 Posts Drives: BMW F36 Join Date: Apr 2018 Location: Europe iTrader: (0)	Option 1: MPPSK (+34PS, + 50Nm, worth it even just for the exhaust), full warranty retained Option 2: Downpipe (minimum risk, no traces; + ~20PS, + ~20Nm) Option 3: MPPSK + Downpipe (you do the math) There are no other options (which would give you any meaningful increase of power and/or torque) __________________ "Large increases in cost with questionable increases in performance can be tolerated only in cars and women."
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01-24-2022, 04:17 PM	#5
HarryTee Lieutenant 214 Rep 496 Posts Drives: 2020 M4CP & 2017 440i GC Join Date: Jan 2020 Location: UK iTrader: (0)	How to push more power without a tune? All of the above. Also: Give it more gas! (Sorry, couldn't help it )
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01-24-2022, 04:25 PM	#6
BMWILUVU Lieutenant Colonel 809 Rep 1,597 Posts Drives: 340ix Join Date: Mar 2017 Location: The Boibs iTrader: (0)	Do you drive around in Sport+ all the time?
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01-24-2022, 06:57 PM	#8
McGyv3r Second Lieutenant 161 Rep 245 Posts Drives: 1989 325i & 2014 335i Join Date: Jul 2021 Location: Philadelphia iTrader: (0) Garage List 2014 BMW 335i [0.00] 1989 BMW 325i [0.00]	You may also be able to go with a Dinan piggyback or a Dinan tune, I don't know how they relate to the BMW warranty though. Honestly, your best bet for a b58 car is BMW's MPPSK. You may be able to save some cash by installing everything but the tune by yourself. Then again, I read a story about BMW denying a warranty claim on a self installed kit. If you want significantly more power with a warranty, buy an M4.
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01-24-2022, 07:28 PM	#10
AllaVodka Captain 634 Rep 709 Posts Drives: BMW B58 Join Date: Dec 2020 Location: CT iTrader: (0)	Have you tried to dip it low, and then pick it up slow?
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01-25-2022, 01:15 AM	#12
eluded 2JZ-GTE 3032 Rep 3,992 Posts Drives: 340 6MT, 50e, others Join Date: Nov 2015 Location: Sofia iTrader: (0)	In the year 2022 there is not much you can do without voiding your warranty. Just wait for that expiration date. __________________ A man who views the world the same at 50 as he did at 20 has wasted 30 years of his life.
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01-25-2022, 01:25 AM	#13
HFW003 Brigadier General 5685 Rep 3,225 Posts Drives: 2024 M340i xdrive Join Date: Apr 2013 Location: Newcastle, Australia iTrader: (0)	M4
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01-28-2022, 04:02 PM	#18
shoman24v Second Lieutenant 105 Rep 220 Posts Drives: 2018 330i, 2022 Highlander Join Date: Feb 2020 Location: Fresno, CA iTrader: (2)	Only race going downhill __________________ \| 2018 BMW 330i \| 30k Miles \| M-Sport Package \| Driving Assistance Plus \| Premium Package \| Executive Package \| Harmon Kardon \| Active Blind Spot Detection \| PDC \| Mineral Grey Metallic/Coral Red Dakota Leather \| \| 2022 Toyota Highlander Platinum AWD \|
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