[Nashvillain]

I have an opportunity to buy a low-mileage 2015 M235i that has Dinan Stage 2 installed. I have looked up info on Dinan 2 and it looks like it adds 50 horse or so and doesn't void the warranty. But I have a couple questions. First, is there a downside to having this installed? For example, will it shorten the life of the engine or any of the engine components? Does it put a lot of stress on certain components maybe? Second, if it does shorten engine life, can it be easily uninstalled by a mechanic and returned to stock?

Thanks for insight.

[MrBones93]

Dinan, as far as tuners go, is very conservative and typically high quality. They have a long history of modifying bimmers reliably so I would not be too worried. As far as returning to stock if so inclined, should be easy. No reason to get rid of the exhaust as it is only axel back and hardly does anything. The piggyback would only take someone with the knowhow to remove it and as long as you have a stock intake to replace the Dinan CAI, the swap is easy.

my $0.02, keep the Stage 2 and enjoy the upgrade, you shouldn't experience any issues.

[BMWZ4]

Also there's an app available that will allow you switch between stock, stage 1 and stage 2.

[Nashvillain]

Didn't know about that app. That's awesome.

[G-Mann]

Would you even have any warranty on this car? Does Dinan warranty transfer with owners?

[1LegitM235i]

The OP may have to pay for the Dinan transfer warranty if he plans to upgrade to stage 3 or 4 if I remember right.

[BMWZ4]

Originally Posted by 1LegitM235i

The OP may have to pay for the Dinan transfer warranty if he plans to upgrade to stage 3 or 4 if I remember right.

I THINK that's right. If he car is still under warranty then the existing piggy back should be as well. If the OP goes to S3, just pay the difference.

Pretty sure anyway...

[Nashvillain]

My understanding is that Dinan still warranties anything not covered by BMW with stage 2. I wouldn't got to stage 3

[Dinan_Engineering]

Warranty is tied to the VIN of the car so it transfers between owners when its on the same car. If the OP wanted to upgrade to stage 3 or beyond no re-registration would be needed and would just pay the difference between stage 2 and 3 and add the associated intercooler.

Enjoy the car!

[BMWZ4]

Originally Posted by Nashvillain

Didn't know about that app. That's awesome.

Sorry should've mentioned I have Android. Just search the Play store for Dinantronics. I assume it's available for iOS as well.

[Benandluna]

All true,

Just download the app, and pop it on factory, or stage 1 if you are worried. The Stage 2 tune does produce power to where you will be like "wow".

Not as powerful as other tunes, but you should feel self assured that its all under warranty.

[usabia]

Rollin Stage Three Dinan here, I had a Dinan certified shop install though.
Works great. Peace of mind that Factory warranty is not affected.

That said yes it is definitely more conservative than a JB4 tune for sure. Meaning its not nearly as hard on your engine sensors and components like a JB4 is, that's likely why they offer such a great warranty.

I went from bone stock to Stage 2 dinan first and there is a very noticeable improvement in power/performance. So I would be totally comfortable buying a used 235i with a Dinan stage 2.
Stage 3 now your modding body components to fit in an oversized intercooler and stuff like that. if its done wrong it looks like total crap.
Stage two doesn't require them screwing around with body stuff.

I'd go for it man.

[Benandluna]

Originally Posted by usabia

Rollin Stage Three Dinan here, I had a Dinan certified shop install though.
Works great. Peace of mind that Factory warranty is not affected.

That said yes it is definitely more conservative than a JB4 tune for sure. Meaning its not nearly as hard on your engine sensors and components like a JB4 is, that's likely why they offer such a great warranty.

I went from bone stock to Stage 2 dinan first and there is a very noticeable improvement in power/performance. So I would be totally comfortable buying a used 235i with a Dinan stage 2.
Stage 3 now your modding body components to fit in an oversized intercooler and stuff like that. if its done wrong it looks like total crap.
Stage two doesn't require them screwing around with body stuff.

I'd go for it man.

Yowzers, what do you mean modding body components for the FMIC?

[psi_blades]

Just picked up a 2016 m235i recently and I'm considering a Dinan stage 2 mod also, but I live in California and am concerned if the CAI is legal in the state. Sorry, newbie here getting their feet wet in the tuning community.

[bmw235iSD]

Originally Posted by psi_blades

Just picked up a 2016 m235i recently and I'm considering a Dinan stage 2 mod also, but I live in California and am concerned if the CAI is legal in the state. Sorry, newbie here getting their feet wet in the tuning community.

I'm considering the same, the intake is definitely not, you lose around 10hp. So I may go without it. T he exhaust could be replaced to add 6 but that's pretty minimal.

Stage 2 with the tune itself is what some people do as well, without the intake.

[bryan_G01]

stage 2 is very drivable on a day to day basis.

I would get the car, and have them finance in the stage 3 upgrades including fmic. Stage 3 is about 370whp, or equivalent to a new m2.

Its not ridiculously fast, but it will not be a slow car by any means.

Make sure the intake has been upgraded. And have them inspect the charge pipe. good luck.

[M235Montreal]

Originally Posted by bryan_f22

stage 2 is very drivable on a day to day basis.

I would get the car, and have them finance in the stage 3 upgrades including fmic. Stage 3 is about 370whp, or equivalent to a new m2.

Its not ridiculously fast, but it will not be a slow car by any means.

Make sure the intake has been upgraded. And have them inspect the charge pipe. good luck.

M2 has 330 whp so Dinan stage 2 more or less

[Benandluna]

Originally Posted by bmw235iSD

I'm considering the same, the intake is definitely not, you lose around 10hp. So I may go without it. T he exhaust could be replaced to add 6 but that's pretty minimal.

Stage 2 with the tune itself is what some people do as well, without the intake.

Not sure why you would lose 10HP with the intake. unless you mean gain 10hp with the stage 2 tune.

Though it is pricey

[psi_blades]

Originally Posted by bmw235iSD

I'm considering the same, the intake is definitely not, you lose around 10hp. So I may go without it. T he exhaust could be replaced to add 6 but that's pretty minimal.

Stage 2 with the tune itself is what some people do as well, without the intake.

Thanks for the insight. After some deliberation I think I'm going to go with either the Stage 2 + exhaust but without the CAI or possibly the S2 Signature Package without intake (Dinan said they will still offer the 10% off).

Any recommendations for or against getting the full package? And also any recommended installer for the East Bay part of CA? I'm considering Performance Technic in Dublin as I heard only good things about them.

[bryan_G01]

Put a drop in filter in at least.
You do not lose any power with an intake.

[Benandluna]

Originally Posted by psi_blades

Thanks for the insight. After some deliberation I think I'm going to go with either the Stage 2 + exhaust but without the CAI or possibly the S2 Signature Package without intake (Dinan said they will still offer the 10% off).

Any recommendations for or against getting the full package? And also any recommended installer for the East Bay part of CA? I'm considering Performance Technic in Dublin as I heard only good things about them.

Yeah actually i do. the S2 signature package offers what sort of discount again.

getbmwparts.com can probably price out each part with discounts and do better (not 100%) sure yet. but you should inquire because they have amazing prices and trust me i am pro dinan

[psi_blades]

Originally Posted by Benandluna

Yeah actually i do. the S2 signature package offers what sort of discount again.

getbmwparts.com can probably price out each part with discounts and do better (not 100%) sure yet. but you should inquire because they have amazing prices and trust me i am pro dinan

Sorry I meant stage 2 performance tuner vs the S1 signature package.

http://www.dinancars.com/product/f22...ries&mid=1183/

It's 10% off if getting the package.