03-10-2020, 03:34 PM | #46 |
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The old risk to reward......but, if you happen to blow your engine or destroy a gear box and are looking at a $20k+ bill because of 30+HP gain, you will be kicking yourself. Not saying not worth the risk, but man, I dont see it.
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03-15-2020, 09:55 PM | #48 |
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03-15-2020, 09:58 PM | #49 |
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03-16-2020, 12:47 AM | #50 |
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Honestly, BM3 OTS Maps are very reliable. I know a few individuals that own a range of 3ers ranging from 4cyl to 6cyl, all running flash tune, and have had no problems, provided because they went with what was required before flashing and also just taking care of the car and not to drive it like a maniac, for instance when WOT and not shifting while till past red line, shit like that will obviously break the car if you keep doing it. But I know most dont do that, and most have some sense of taking care of their cars and also appropriately modding their vehicles.
Just take care of your car when you mod it. Oil changes, constantly monitoring logs, etc. On a side note regarding warranty. There are rumors that BMW logs the status of the car through the key of your vehicle. Not sure if this is true or not, but regardless, best thing to do when you flash your car back to stock and relock DME, use your spare key thats never been used to unlock the car when its tuned, and use that key for service. Its never a guarantee but, stay super safe with it, and chances are you just might be able to get away with it. But honestly if you break a car while modding it, you should be the one paying for it. Its not BMWs fault you went and screwed with the car and broke it. Pay to play. Simple as that. If youre so worried about warranty then tuning this early on simply isnt for you. |
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03-16-2020, 02:42 PM | #51 | |
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Also, I’ve heard of SAs claiming that BMW notes DME changes via connecteddrive too. I find that hard to believe but who knows what the truth is. Either way, if you get your car tuned, it’s almost guaranteed that you lose engine and drive train warranty. There’s no guarantee that you won’t lose it with a piggy back as well. Pay to play it definitely is.
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03-17-2020, 07:03 PM | #52 |
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I spoke to my local dealership today and told him of my plans with tuning.. he really didn't seem to phased and just said make sure you get a tune that can be reverted to stock when you bring it in for a service.
Apparently the same guy used to work at a tuning shop some years back.. however he was in the parts department and not service, not entirely sure why they transferred me there! |
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03-17-2020, 08:43 PM | #53 | |
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03-17-2020, 08:52 PM | #54 |
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03-18-2020, 09:45 AM | #55 | |
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03-26-2020, 02:03 AM | #56 | |
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03-26-2020, 02:26 AM | #57 | |
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03-26-2020, 10:37 PM | #58 |
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Im not very sure. I guess the only way to confirm is to actually try and flash the car like I did?
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11-02-2020, 10:28 PM | #59 |
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I'm also new to this whole tuning things but I'm mainly looking for which tune is the best for increase in hp. Also do tunes make your car louder if so what's the best way to go about that?
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11-03-2020, 12:37 AM | #60 |
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Depends.
Flash tunes are considered the best since it gives an OEM+ feel. Problem with flash tunes is that the DME/ECU has to be bench unlocked in newer cars which requires you sending it via mail or taking it to a shop to get it bench unlocked. Piggybacks have come a long way compared to a few years ago. They're not considered as good as tunes by purists. But they definitely work and your car will feel like a "boosted/tuned" car. I have a JB4 on my 330i and I love it. Regarding tuning and warranty. There are probably a million threads out there and a million and one view points on it. You'll have to go through a few of them and make an informed decision. A basic stage 1 tune will give you an increase in HP. You can increase that even more with hardware mods (intake, exhaust, new turbo, strengthened internals, better cooling system, charge pipe etc). A transmission tune for our cars is also in the pipes (xHP is working on it). It won't increase the HP but it can help make your car faster. Some flash tunes can help make your car louder in the form of burbles (called burble tunes). But you'll need an aftermarket exhaust/downpipe since I've read it can melt the stock cat if overdone. But since you're based in cali where you'll need to pass emissions tests, that might be out of the question (going catless). Piggy backs will not help with making your car louder.
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11-03-2020, 05:26 PM | #61 |
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While I agree with this rationale, I just don't think there is much risk with a simple stage 1 tune. The B46/48 is a closed deck block and is essentially the B58 less 2 cylinders. It most certainly can handle 315 crank HP and 350 TQ with ease. Same with the ZF8 transmission. While there's always risk, I just don't see it as substantial. It's when people start getting greedy that there could be problems
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11-04-2020, 03:50 AM | #62 | |
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I have a 2020 build car. I did a "pre-scan" with BM3 app and shared my ECU version with the makers of BM3 (pro tuning freaks) Within 2 mins they replied to say "your DME is locked, do not proceed" I then had a local tuner unlock the DME. This unlocking allows me to flash between maps whenever I like. It took 15mins and cost £100. The shop stuck a couple of pins on the side of the ECU whilst it remained in the car and performed some wizardry on a laptop. Had I just went ahead and tried to flash before confirming my ECU info then I'd have had a bricked car. |
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11-04-2020, 10:38 AM | #63 | |
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11-04-2020, 01:01 PM | #64 | ||
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I'm now in a similar position with regards to software update 07/2020.54. The OTA update is awaiting install, but I can't be sure it won't mess up the ECU unlock. Given I'm running stage 2 BM3 with decat this would be a disaster for me.... |
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11-04-2020, 02:46 PM | #65 | |
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And I did read about someone (a couple of G20 330i owners actually) who updated their car to the latest software OTA (or at a service centre - not sure) and they couldn't flash their car with BM3 and needed to bench unlock the DME (they had an older car with older software on it and DME was unlocked then).
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11-05-2020, 01:39 AM | #66 | |
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