What is the Best Performance chip? - Page 4 - BMW M5 Forum and M6 Forums
M5 E39 and E60 tips & tricks Forum for tips, trick, ideas, and other "home made" improvments and enhancements.

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post #31 of 35 Old 27th January 2017, 04:26 PM
dinkman
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is there really a right answer here? could go in any # of ways depending on maf or mafless
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post #32 of 35 Old 18th January 2018, 01:16 AM
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Originally Posted by palantirion View Post
-Many, many new owners on this board since I was last active.

The "best bang for your buck" is the mod that DOESN'T make your car go BANG. There are no "chips" for the E39, or any post-OBDII BMW. There is software. I would avoid any piggiback systems, as they only work by fooling the OEM software into thinking the engine is doing something it isn't. Full software rewrites are most effective. The only two commercially available that I would trust are Dinan and ESS. I have experience with both, on different cars. Given Dinan's move to public ownership I would currently steer you to ESS.

Otherwise, keep it stock and reliable. S62s are hellishly expensive to rebuild.
It doesn't matter who owns Dinan right now for already developed products. It doesn't retroactively change the product development methodology or process. I would trust Dinan because they offered a factory matching warranty from new. I've visited the facilities, spoke with Steve, and know the design process. The mantra is/was to get reliable power. They weren't willing to sacrifice reliability or drivability. That latter bit is particularly hard to chase and takes a lot more effort and time.

To the OP, that said, I may be biased. I own cars with Dinan parts and software and have been happy with the results. My 540i/6 has almost 174k miles on it with Dinan parts and software having gone on around 5k miles. My M5 hasn't been touched yet but you can see whether or not owners have complaints with their Dinan tune. I echo palantirion's comments though that you want reliability. The physics of a high-rev, large displacement V8 is particularly hard on rod bearings.
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post #33 of 35 Old 16th July 2018, 06:41 PM
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I just got a performance chip for mine from a company called powertune. I was not expecting much when I bought it and it's just ok, no crazy increase in HP but it does give it more pep. If you want a little more kick then I'd recommend it but don't expect to gain a ton of hp. The company also put together reviews on their site from customers. Some just talking about it and some doing 0-60 tests with and without it. powertune performance chip
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post #34 of 35 Old 16th July 2018, 09:34 PM
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Originally Posted by johnnyrocket22 View Post
I just got a performance chip for mine from a company called powertune. I was not expecting much when I bought it and it's just ok, no crazy increase in HP but it does give it more pep. If you want a little more kick then I'd recommend it but don't expect to gain a ton of hp. The company also put together reviews on their site from customers. Some just talking about it and some doing 0-60 tests with and without it. powertune performance chip
- Troll much? Your first post and it's an ad for a company (who is not a vendor on m5board) that is selling scams. It is NOT POSSIBLE for a BMW DME to be programmed through the OBDII port, and there is NO way a tune is going to increase power by their claims without adding serious risk to the engine.

No one buy this crap. I've already reported the post.

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post #35 of 35 Old 3rd August 2018, 09:06 AM
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