5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
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I was wondering if my engine could handle a turbo, or in general what type of upgrades such as performance chips, new headers, or even if its possible to do an engine swap with a much better and bigger engine.
Again I have a 525i, 2003. E39. 82,000 miles
Other than that when im accelerating I hear some weird noises, anyone know about this or have comon sounds with the 03 525i?
You may have the M50 unit (engine) Straight-six and a brilliant motor mate... M52 has a longer stroke (2.8)...
I would go for a re-map first mukka...
They were designed, and built in Germany... Hence the Euro spec, apart from US legislation, they are built as standard and CAN be "tweaked" to your own prefs !
Get shot of the CATs, (maybe an emission issue there)... You will not need a "Blower" to achieve an extra 40 hp+
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2003 BMW 525i (5 speed)
2011 BMW E38 728i
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