just upgraded to dinan stage 2

[greekf80]

i had the stage one with bmc filters on my car and was night and day from stock. Went today and installed the stage 2 software only. The car is a completely different from stage 1 . Way more power and smooth shifting from stage 1. The bmw service advisor said it was an additional 20 hp from stage 1 . they said it shows on there system how much power was added. Definitely a huge difference

[schnazzy]

greekf80, that's great. do you have any dynos? are you planning on doing any? I think many people would like to know, especially if you base-lined beforehand.

dinan states a 14hp (flywheel, not to the ground) and 15 torque (flywheel), so at least on paper, with your car that is probably doing 516 dinan rated flywheel hp how a 2.9% increase is a "huge" difference, is confusing.

Are you saying the performance is a huge difference or is there more of sound (turbo spool) etc.?

You have a YMB as well (M3). I have an M4. Do you have any pics?

Here is one of mine.

[greekf80]

i will do a dyno within the next few weeks. love your car and what rims are those? It feels like it pulls much harder after 3k rpm compared to stage 1. Sound is a little more but not much.

[jc1654M4]

Did you just do stage 2 without the intake and exhaust mod ?

[greekf80]

no just stage 2

[schnazzy]

They are 20" Avant Garde M359 With PSSs. Heavier than the Stock 19" rims btw.

[Money2536]

OP, Thanks for the comments. I'll be doing a before and after dyno from Stage 1 to Stage 2 when my AWE intake gets here in a few weeks.

[schnazzy]

Originally Posted by Money2536

OP, Thanks for the comments. I'll be doing a before and after dyno from Stage 1 to Stage 2 when my AWE intake gets here in a few weeks.

Sounds good. subscribed!

[Ian1973]

How does Dinan feel about you installing the stage 2 tune without any other modifications? I had been thinking about it, but at the moment have no interest in doing the intake(theirs or any other) or exhaust.

[shortseller]

Originally Posted by schnazzy

greekf80, that's great. do you have any dynos? are you planning on doing any? I think many people would like to know, especially if you base-lined beforehand.

dinan states a 14hp (flywheel, not to the ground) and 15 torque (flywheel), so at least on paper, with your car that is probably doing 516 dinan rated flywheel hp how a 2.9% increase is a "huge" difference, is confusing.

Are you saying the performance is a huge difference or is there more of sound (turbo spool) etc.?

You have a YMB as well (M3). I have an M4. Do you have any pics?

Here is one of mine.

I read Dinan website S2 gains as 46hp* & 58tq flywheel - based on inhouse dynos(measured) not sure where you see 14 & 15.

*max at 56hp, Dinan claimed.

Looks like an S2 will do about 40hp & 50tq at the wheels. Which btw is pretty much where everyone else is on reg gas albeit at much lower prices though no warranty offering.

[shortseller]

Originally Posted by greekf80

i had the stage one with bmc filters on my car and was night and day from stock. Went today and installed the stage 2 software only. The car is a completely different from stage 1 . Way more power and smooth shifting from stage 1. The bmw service advisor said it was an additional 20 hp from stage 1 . they said it shows on there system how much power was added. Definitely a huge difference

Nice. I look forward to more posts from you after you get more acquainted with the S2. Thinking of this tune myself so anything more you can expand on would be appreciated.

[KingsleySmith]

Originally Posted by Money2536

OP, Thanks for the comments. I'll be doing a before and after dyno from Stage 1 to Stage 2 when my AWE intake gets here in a few weeks.

Interested in your write up on the intake. You sold me on the exhaust, so I guess I may need to follow along with the intake. I'll probably be heading in for the stage II in a couple months.

K

[Money2536]

Originally Posted by shortseller

Nice. I look forward to more posts from you after you get more acquainted with the S2. Thinking of this tune myself so anything more you can expand on would be appreciated.

Originally Posted by KingsleySmith

Interested in your write up on the intake. You sold me on the exhaust, so I guess I may need to follow along with the intake. I'll probably be heading in for the stage II in a couple months.

K

My guess is that AWE has mine done already, but they don't want to send it early like the exhaust as I jumped the gun on releasing my review.

[KingsleySmith]

I know your review made them happy. Sold me on the exhaust. Wonder why I have this feeling your review will sell me on the intake?

Hoping you did not take it to hard the other day with Greece defaulting? I figure I lost a new F83 with all the add ons! Thank god they are just numbers, right?

K

[iamwingman]

Sitting in waiting room right now for Dinan stage 1 and Schnitzer springs. Like waiting to come downstairs Christmas morning.

[austexbmw]

Originally Posted by greekf80

i had the stage one with bmc filters on my car and was night and day from stock. Went today and installed the stage 2 software only. The car is a completely different from stage 1 . Way more power and smooth shifting from stage 1. The bmw service advisor said it was an additional 20 hp from stage 1 . they said it shows on there system how much power was added. Definitely a huge difference

I also have the BMC drop in filters and the Dinan Stage 1 Tune. I am considering doing the Dinan Stage 2 tune without adding their CAI or exhaust. Do you feel like there was a noticeable increase in power across the powerband? When you look at their Dyno charts, it shows only a very small increase in the mid range from Stage 1 to Stage 2. I am wondering if they have updated their ecu mapping since they released these dyno charts?

[schnazzy]

Originally Posted by shortseller

I read Dinan website S2 gains as 46hp* & 58tq flywheel - based on inhouse dynos(measured) not sure where you see 14 & 15.

*max at 56hp, Dinan claimed.

Looks like an S2 will do about 40hp & 50tq at the wheels. Which btw is pretty much where everyone else is on reg gas albeit at much lower prices though no warranty offering.

I looked at dinan's website and the delta between Stage1 and Stage2 is 14hp. You might be thinking the alleged total HP increase from stock to S2.

My question was that OP stated he already had S1 and that he put in S2 and "definitely a huge difference", which to me was confusing because how could <3% perf increase from 516 to 530 be that noticeable? (and this is flywheel numbers too). I was wondering if there was a noise difference etc. Now we are talking peak numbers so there could be more like a 20hp difference below peak in the 3k rpm range etc. that's possible and so I was wondering what and where was the difference.

[shortseller]

Originally Posted by schnazzy

I looked at dinan's website and the delta between Stage1 and Stage2 is 14hp. You might be thinking the alleged total HP increase from stock to S2.

My question was that OP stated he already had S1 and that he put in S2 and "definitely a huge difference", which to me was confusing because how could <3% perf increase from 516 to 530 be that noticeable? (and this is flywheel numbers too). I was wondering if there was a noise difference etc. Now we are talking peak numbers so there could be more like a 20hp difference below peak in the 3k rpm range etc. that's possible and so I was wondering what and where was the difference.

That makes sense, gotcha, my mistake. I'll even add, if your delta is correct, one has to consider Dinan's claim that the FFE and the CAI contribute 19hp & 21tq to the S2 gains collectively. So if the hardware numbers are correct, the S2 piggy gain is all hardware based not software? Weird science to be sure.

[schnazzy]

First, I doubt any exhaust makes HP (+/- a couple maybe) if it still has the cats. Dinan has cats. Also, CAI, when combined with an exhaust and tune they generally make no HP (again maybe couple more or less). So while required I think they don't do much except make some better noise and maybe a handful of BHP. Even JB4 S2 doesn't add as much HP from S1 as S1 does from stock. There are limits to these cars and it is octane. Given Ando did over 500 with just the JB4 and fuel... it's fuel.

I'd like to see S2 dynos vs S1. I think the HP will be close to what dinan states.

[/// M sa]

How much for Stage 2?

[shortseller]

Originally Posted by schnazzy

First, I doubt any exhaust makes HP (+/- a couple maybe) if it still has the cats. Dinan has cats. Also, CAI, when combined with an exhaust and tune they generally make no HP (again maybe couple more or less). So while required I think they don't do much except make some better noise and maybe a handful of BHP. Even JB4 S2 doesn't add as much HP from S1 as S1 does from stock. There are limits to these cars and it is octane. Given Ando did over 500 with just the JB4 and fuel... it's fuel.

I'd like to see S2 dynos vs S1. I think the HP will be close to what dinan states.

Just my point exactly, that I've speculated in other postings, the Dinan hardware (FFE & CAI) make little improvement over the OEM parts they replace. .

The whole thing boils down to qualifying for the matching Dinan warranty, if we do or not?

Otherwise just save a bunch of cash and spend $350 for a BMS stage 1. I guess it's all up in Dinans' hands, i.e. leeway into the unknown "grey area".

[schnazzy]

To clarify, I don't think anyone's exhaust that retains cats is going to give you any or at least significant gains and it certainly isn't additive. Same with most CAI. Sure some CAI could show a 3-4% gain in optimal conditions but in many cases with other perf parts that gain will disappear. getting 45hp from a BMS S1 and separately getting 10 from a CAI, you won't have 55hp when you combine them.

I will say Dinans S2 numbers are quite conservative which is nice. And the price is only a few hundred