[///M ARMY]

Originally Posted by Dippydo

The Dinan warranty lasts as long as the original BMW warranty 4yrs/50,000 miles. If the car is out of warranty, Dinan warranties the product only for 2 years.

Correct. That warranty is with Dinan and Dinan approved BMW dealerships. No warranty is provided with BMW for this product. Out of Warranty cars are covered for 2 years only with Dinan from the original purchase date. All repairs done at a Dinan facility.

PCR0303

[PCR0303]

Originally Posted by Dippydo

The Dinan warranty lasts as long as the original BMW warranty 4yrs/50,000 miles. If the car is out of warranty, Dinan warranties the product only for 2 years.

$1500 for 2 years is a bit much imo.

[PCR0303]

Originally Posted by ///M ARMY

Correct. That warranty is with Dinan and Dinan approved BMW dealerships. No warranty is provided with BMW for this product. Out of Warranty cars are covered for 2 years only with Dinan from the original purchase date. All repairs done at a Dinan facility.

PCR0303

So it matches the BMW warranty if you have it. But let's say you purchased an extended warranty where it is more than 50,000 miles? Or is it only matching just 4yr/50,000?
And if anything that means regular service will be done at those dealerships which are quite a ways from me. I think I'd rather enjoy the car for what its worth and save $$. It's still a fantastic car and then once out of warranty there are a lot more options.

[LongBeachDinanFan]

Originally Posted by ///M ARMY

Correct. That warranty is with Dinan and Dinan approved BMW dealerships. No warranty is provided with BMW for this product. Out of Warranty cars are covered for 2 years only with Dinan from the original purchase date. All repairs done at a Dinan facility.

PCR0303

Nice review. I enjoyed the analysis and reasoning but real dyno tests and track testing would help give a more clear view of the performance gains with the n26 motor.

On the warranty just to clarify there is no vehicle coverage after your 4/48 ends. The 2 years Is for the tuner itself.

Given the reports of n20s blowing motors 1500 for 2 years of warranty would be worth it in my opinion.

[///M ARMY]

Originally Posted by LongBeachDinanFan

Nice review. I enjoyed the analysis and reasoning but real dyno tests and track testing would help give a more clear view of the performance gains with the n26 motor.

On the warranty just to clarify there is no vehicle coverage after your 4/48 ends. The 2 years Is for the tuner itself.

Given the reports of n20s blowing motors 1500 for 2 years of warranty would be worth it in my opinion.

As long as your happy with it that's all that matters

[Trekk]

Originally Posted by mtbnole

now, I am bummed because I have the n26 motor, and am concerned how much I am missing. is there really that big a difference between the two?

Dinan's data shows that stock N26 makes 24HP less than N20 at high (5500+) RPMs. There is no difference at lower RPMs. Daily driving is probably the same, but if you push your car to the limit (0-60, quarter mile times) then N20 will be measurably faster.

With Dinantronics the N26 vs N20 difference is even larger at 30HP. That's no joke.

Technically (but illegally) you can fix it by replacing the catalysts with something less restrictive.

[Trekk]

Originally Posted by bahasad

Do you have any further plans for your car powerwise besides the Dinantronics?

I have no further upgrade plans. The car drives nicely, and I think getting 300HP out of a 4-cylinder engine is already quite a feat. That's more power per cylinder than the M3 is rated for.

If I end up hungering for more power then it's more likely that I would look into getting a different car.

I would keep an eye on what Dinan releases though, even if you don't intend to buy their products. Are they comfortable releasing a Stage 2 for the N20/N26, for example? Since they're on the hook for engine damage it can be telling how far they're willing (or not) to go.

The other tuners are incentivized differently and so they are more likely to give you what you ask for, even when what you ask for is not particularly smart (it's on your dime, after all).

[Trekk]

Originally Posted by Dippydo

Very nice write up. I am sold on the Dinan, but I only have one more year left on my standard warranty and like you said it voids the CPO warranty which I have. Also if you have a mechanical waste gate like the early models, Dinan says you get a little more boost over the electronic waste gate. Such a tough call for me just because I only have one more year left...

Yes, you certainly get less bang for your buck with Dinantronics when you have just a fraction of the OEM warranty left. I would try to negotiate a discount with the Dinan dealer, I'm sure they have some room to work with.

That said, I think there is also the built-in value of the fact that Dinantronics was likely engineered with proper respect paid to engine wear and reliability (otherwise that warranty could bury them financially - look at the eye-popping amount that BMW charges for just one engine replacement).

[Dippydo]

Originally Posted by Trekk

Yes, you certainly get less bang for your buck with Dinantronics when you have just a fraction of the OEM warranty left. I would try to negotiate a discount with the Dinan dealer, I'm sure they have some room to work with.

That said, I think there is also the built-in value of the fact that Dinantronics was likely engineered with proper respect paid to engine wear and reliability (otherwise that warranty could bury them financially - look at the eye-popping amount that BMW charges for just one engine replacement).

I agree that Dinan does more R&D with their tunes than the other guys and look at longevity as well which is why their curve (I think) match the engine's power curves ratio wise. You see a lot of older BMWs, at least in our BMW group with Dinan tunes still running strong. If I did not have a CPO I wouldn't care, but having the CPO warranty that I essentially paid for would be a waste. Such a tough decision..

[bluesman]

Originally Posted by Trekk

Dinan's data shows that stock N26 makes 24HP less than N20 at high (5500+) RPMs. There is no difference at lower RPMs. Daily driving is probably the same, but if you push your car to the limit (0-60, quarter mile times) then N20 will be measurably faster.

With Dinantronics the N26 vs N20 difference is even larger at 30HP. That's no joke.

Technically (but illegally) you can fix it by replacing the catalysts with something less restrictive.

Didn't we see that BMS's N26 dyno had no difference with N20 dyno? If it's true, N26 making less power on Dinan tune doesn't make sense to me unless Dinan lowered boost over N26's high RPM range in order to keep N26's more strict emission requirement. I hope someone knowledgeable clarify my doubt.

[Level3]

Scheduled for 3/30/15 to have dinantronics and dinan free flow exhuast installed on my n20. Pretty stoked!

[Larry Chijner]

Congratulations on your new exhaust and Dinatronics install coming up. I love both of mine. It was the best thing I have ever done to my car. Enjoy...
Larry C. 428ix.

[Trekk]

Originally Posted by bluesman

Didn't we see that BMS's N26 dyno had no difference with N20 dyno? If it's true, N26 making less power on Dinan tune doesn't make sense to me unless Dinan lowered boost over N26's high RPM range in order to keep N26's more strict emission requirement. I hope someone knowledgeable clarify my doubt.

Dinan's data shows a 24HP difference between the stock N20 and the stock N26 - with no tuning involved.

Do you have a link to BMS data showing the same HP for both stock N20 and N26? If BMS claims the same power output then clearly one of them (Dinan or BMS) is wrong.

[eric@helix]

Thanks for the thorough review. I went with the BMS because, well, we're a BMS dealer and have had positive results with their products. That warranty is compelling: do you have a link to it?

Eric

[PrazVT]

Originally Posted by Trekk

I recently purchased a Dinantronics N26 tune for my 2014' 328 xDrive and this is my review of it.

....

Very cool. While I'm not an F30 owner anymore (had a '12 328i Sport 6mt), I have been on the edge of making a call on whether to get the n20 dinantronics upgrade for my '15 228i M Sport. Which dealer did your install? I know that my usual dealer (BMW of Fremont) is an authorized dealer.

Was going to talk to them more about it around the time of my first service (another 2k miles).

[MyFragileHalogen]

Originally Posted by Trekk

Dinan's data shows a 24HP difference between the stock N20 and the stock N26 - with no tuning involved.

Do you have a link to BMS data showing the same HP for both stock N20 and N26? If BMS claims the same power output then clearly one of them (Dinan or BMS) is wrong.

Right now I can only find N26 dyno for Stage1 and N20 dyno for JB4 on their website. I think there should have been N26 dyno for JB4 but I can't find it. Sorry. By the way, I am just thinking there is a possibility that their N20 dyno might be actually from N26 since they are in California. Anyways, at least they've never mentioned nor discussed any performance differences between N26 and N20. The best way would be just asking them directly.

[bahasad]

I am not sure if this has been addressed - if an issue is found due to the tune, who covers the warranty? Is it Dinan or the BMW dealer? Has anyone had issues with Dinan with respect to warranty claims.

[Dippydo]

Originally Posted by bahasad

I am not sure if this has been addressed - if an issue is found due to the tune, who covers the warranty? Is it Dinan or the BMW dealer? Has anyone had issues with Dinan with respect to warranty claims.

That's the thing. If the dealer says the tune is the cause of the problem, then Dinan covers it up to the original factory warranty. It mirrors the factory warranty basically. I heard good and bad stories. Some say they got taken care of and others have said there was a finger pointing game. I would imagine the finger pointing game was if the problem was grey and not clear if the product caused the problem or not.

[Trekk]

Originally Posted by PrazVT

Very cool. While I'm not an F30 owner anymore (had a '12 328i Sport 6mt), I have been on the edge of making a call on whether to get the n20 dinantronics upgrade for my '15 228i M Sport. Which dealer did your install? I know that my usual dealer (BMW of Fremont) is an authorized dealer.

I went with Dinan Mountain View and had a good experience. They offered the discount I had in mind, they were available on the date I was interested in, and they happened to be the closest to where I live.

I chose to go to a specialized Dinan shop rather than a BMW dealer for this type of work, but that's just my preference. Part of the reason was that I wasn't sure whether I'd keep the Dinantronics (there is a 3-day return window) or stay stock, and because of that I didn't want to have my car on record at a BMW dealer as having had Dinantronics installed.

[JKeats]

First - thank you very much for the review. I have been trying to decide whether to do this or not and between Larry's review and yours, I think I am sold. Waiting until i break the 5,000 mile mark - 200 miles to go.

Funny you mention the low end grunt under load before the software update. I get that too, in both Eco pro and comfort. It just seems like something is lacking there. Maybe I should ask about that before I get the tune installed.

Can someone elaborate on this a bit. I notice the same thing in my new 428ix. What do I need to say to my dealer to get them to try that software update? While I haven't been to their service department yet, their CA was pretty useless as I was car shopping so based on that I expect them to be somewhat clueless.

[Level3]

I pulled on an f30 335 with my 2013 328i w/ dinan today. He couldn't catch me from rolling 20's to 80s. Rolled down the window on me at the next light and asked what I had in it.

I've got an n20... if that makes a difference.

[FSociety]

Originally Posted by Level3

I pulled on an f30 335 with my 2013 328i w/ dinan today. He couldn't catch me from rolling 20's to 80s. Rolled down the window on me at the next light and asked what I had in it.

I've got an n20... if that makes a difference.

Bad 335 driver thats for sure