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The BMW Range
5 Series
E39
Tuning e39 523i to 525i - it is possible?
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<blockquote data-quote="loafer" data-source="post: 402018" data-attributes="member: 10508"><p>I didn't do a remap actually. Just a simple battery pull to reset the ECU. In fact I've never done any remapping for my car with the mods I've done on the engine. Figured it would be better to just do all the mods and then get a standalone management in the future.</p><p></p><p>If you're interested in remapping services you can call Lionel Koh. His number is 012-220 7630. He's got a contact who does remapping and is pretty reliable. Good review too. Not too sure if the M50 manifold swap would really unleash 30bhp but if it's tested and proven by others I don't see why you shouldn't do it.</p><p></p><p></p><p></p><p>Agree with fab on what he said!</p><p></p><p>From the minimal research (i'm lazy <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue :p" loading="lazy" data-shortname=":p" />) I've done on the M50 manifold swap, it's supposed to allow the engine more breathing capabilities at higher RPMs thus giving it more pulling power.</p><p></p><p>Personally for me I felt a little loss of power in the lower RPM ranges and my engine is more alive from the mid to higher ranges. You might be able to get more out of it with a proper remap, which I did not do however.</p></blockquote><p></p>
[QUOTE="loafer, post: 402018, member: 10508"] I didn't do a remap actually. Just a simple battery pull to reset the ECU. In fact I've never done any remapping for my car with the mods I've done on the engine. Figured it would be better to just do all the mods and then get a standalone management in the future. If you're interested in remapping services you can call Lionel Koh. His number is 012-220 7630. He's got a contact who does remapping and is pretty reliable. Good review too. Not too sure if the M50 manifold swap would really unleash 30bhp but if it's tested and proven by others I don't see why you shouldn't do it. Agree with fab on what he said! From the minimal research (i'm lazy :P) I've done on the M50 manifold swap, it's supposed to allow the engine more breathing capabilities at higher RPMs thus giving it more pulling power. Personally for me I felt a little loss of power in the lower RPM ranges and my engine is more alive from the mid to higher ranges. You might be able to get more out of it with a proper remap, which I did not do however. [/QUOTE]
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Tuning e39 523i to 525i - it is possible?
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