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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 03-14-2013, 12:39 AM   #1
Rkatek321
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ECU upgrade...which is better?

I'm looking into software upgrades for my Bimmer. Looking for input/ opinions. Which company is good to go with? Active Autowerkes...Dinan...Shark...or Epic? Shark and Epic seem to be DIY (thats cool)...and there is a shop near me that does AA and another that is a Dinan dealer, so getting either one of those won't be hard to do either......your thoughts guys?
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Old 03-15-2013, 01:57 PM   #2
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I have never seen any dynos from Active Autowerke, only claims. Shark is by and large the most "proven" out of the choices. Not too familiar with Epic. Dinan is going to be more mild, but still sporty.
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Old 03-17-2013, 03:42 AM   #3
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stock is the best, so don't waste your money
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Old 03-18-2013, 04:12 PM   #4
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stock is the best, so don't waste your money
I have very rarely ever found this to be true. As a matter of fact, I can't think of one single time this has ever been true.
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Old 03-18-2013, 04:42 PM   #5
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There's ALWAYS better than stock!!!
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Old 03-18-2013, 09:39 PM   #6
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I find it very hard to find good independent before/after dynos of tunes that show any major impact except for the "shark", which I believe has been documented to show an improvement. Its my opinion that you might only see a couple hp at best from a tune, especially if you dont have any other mods.
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Old 03-18-2013, 11:09 PM   #7
Rkatek321
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Originally Posted by rkneeshaw View Post
I find it very hard to find good independent before/after dynos of tunes that show any major impact except for the "shark", which I believe has been documented to show an improvement. Its my opinion that you might only see a couple hp at best from a tune, especially if you dont have any other mods.
yeah...I'm finding that the case when searching. Only Conforti shows any dyno results. The others I hear about through word of mouth here on the forum. Found a lot of guys here that like Epic and Shark mostly. I'm not looking to go super fast, just make my Bimmer quicker when she needs it. So I know HP gains aren't going to be much, even with a CAI and exhaust. One thing I noticed, is that some people seem to have being fast and being quick mixed up. BMWs are very effecient cars, but there's always room for improvement. So I may just go with the Shark because it, as you said..."has been documented to show improvement"
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Old 03-20-2013, 09:25 AM   #8
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Originally Posted by rkneeshaw View Post
I find it very hard to find good independent before/after dynos of tunes that show any major impact except for the "shark", which I believe has been documented to show an improvement. Its my opinion that you might only see a couple hp at best from a tune, especially if you dont have any other mods.
I can't remember who it was, but they showed a consistent 6 or 7 WHP gain from the Shark Injector on the dyno.

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Originally Posted by Rkatek321 View Post
yeah...I'm finding that the case when searching. Only Conforti shows any dyno results. The others I hear about through word of mouth here on the forum. Found a lot of guys here that like Epic and Shark mostly. I'm not looking to go super fast, just make my Bimmer quicker when she needs it. So I know HP gains aren't going to be much, even with a CAI and exhaust. One thing I noticed, is that some people seem to have being fast and being quick mixed up. BMWs are very effecient cars, but there's always room for improvement. So I may just go with the Shark because it, as you said..."has been documented to show improvement"
The Shark Injector is your safest bet. There's one company, Bren Tuning, who supposedly got a gain of 20 WHP from a ZHP on a tune alone. I don't know how they fudged the numbers or how they rated them, but the guy who had the tune done says it FEELS like 20 WHP.
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Old 03-20-2013, 09:31 AM   #9
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http://www.europeanautosource.com/pr...software-cable

This was posted on the forum a while ago. It sounds amazing.... But you never know if it's too good to be true. If I had $800 to experiment a tune different from the one I'm running now I'd do it, but that's not the case. Perhaps it may interest you though
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Old 03-20-2013, 11:15 AM   #10
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Epic will probably net the most power, but I would tend to think any of these are a waste on an otherwise stock 323.
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Old 03-21-2013, 08:33 PM   #11
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Epic will probably net the most power, but I would tend to think any of these are a waste on an otherwise stock 323.
I agree...putting them on a stock car will not net any results. But...as a start....I will be adding a CAI and custom exhaust along with the software upgrade.
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Old 03-21-2013, 09:35 PM   #12
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CAI won't do anything, and will likely make less power due to higher intake temps. Unless you're getting catless headers, a "custom exhaust" won't be anything but loud either. Most guys that ditch the cats go for the EU2 tune, I think.
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Old 03-21-2013, 10:04 PM   #13
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CAI won't do anything, and will likely make less power due to higher intake temps. Unless you're getting catless headers, a "custom exhaust" won't be anything but loud either. Most guys that ditch the cats go for the EU2 tune, I think.
A single-pipe 3" exhaust with catless headers ends up showing gains of nearly 15 WHP. Toss in the Euro2 tune and it MIGHT be closer to 20 WHP. I don't rightly know what the actual figures are for the Euro2 tune, but it supposedly makes a pretty significant difference in the lower RPM range.
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Old 03-22-2013, 06:30 PM   #14
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im learning more about bmw softwares, but is there anything negative about these tunes?
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Old 08-16-2013, 11:59 AM   #15
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I feel like if you tried to go with the the Dinan tune, you wouldnt make anything significatn unless you bought the stage 3 tune as well as the CAI, throttle body and free flow exhaust. Im looking to do this but I also realize it's going to be expensive to "do it right."
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Old 08-16-2013, 12:06 PM   #16
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Just so you guys know our Power Programmer is a Shark Injector. The tuners on these cars do make a noticeable difference especially in throttle response. But the actual horsepower gains are far more modest than they were on cars back in the 80's where a chip alone could net 25-30 horsepower on some models. The Power Programmer/Shark injector is perfectly safe. About the only downside is the car won't be as tolerant if you run low octane fuel in it.
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Old 08-16-2013, 02:15 PM   #17
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Just so you guys know our Power Programmer is a Shark Injector. The tuners on these cars do make a noticeable difference especially in throttle response. But the actual horsepower gains are far more modest than they were on cars back in the 80's where a chip alone could net 25-30 horsepower on some models. The Power Programmer/Shark injector is perfectly safe. About the only downside is the car won't be as tolerant if you run low octane fuel in it.
I agree. The whole 'pop culture' of getting more horsepower from your engine is from 1980s when the computer controlled engines started. On American V8s headers were brutally restrictive with small ports and sharp 90 degree angle plus conservative stock chip program. With performance chip and good heads you get 30hp, those days are over. Now cars are made with the least restrictive parts and with best tune possible, do to stiff competition of car makers to make less emissions and more power.
Best tune you can put on your E46 is European stock software, they were made for less emissions and more power.
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Old 08-18-2013, 06:45 PM   #18
Tbone8ty
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OE tuning vs. AA. vs Shark injector?

which is best for stock 2003 330i 5 spd running on 93 octane?

dont care about down time or paying extra for dyno time.

however im in CT

anywhere that does this in the CT area?

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Old 08-20-2013, 11:40 AM   #19
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I'm waiting to get a dyno tune, I feel like there's more power to be had than any off the shelf tune, if I had to choose I'd get a shark
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Old 08-20-2013, 11:44 AM   #20
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That's makes no sense.

Shark is off the shelf tune
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