I'm selling a genuine Dinan chip for '85-'87 325e and 528e with the M20B27 eta engine. Only works with Bosch ECU number 0-261-200-021 or 0-261-200-027. Supposedly it's good for a 15-20 HP increase (by advancing timing), and it raises the rev limiter by about 500 RPM.
I bought this used about 4 years ago when first building my '87 325e LeMons racer, but I lost it somewhere along the line and ended up getting a complete ECU that was already chipped instead (I can confirm that the rev limiter does get raised - made the difference between shifting at the end of a straight or not while on the track). I just found it while cleaning up the garage, and I'm swapping a different engine in the car, so I no longer need it.
I never got a chance to test it, but was told it worked fine when I purchased it back in '08. So I can't guarantee it's operation, but there's no reason why it shouldn't work. Asking for $70 shipped anywhere in the 48 states. I take Paypal. Please email if interested, as I may not check this thread very often. ltdscott AT THE gmail WITH THE com.
I bought this used about 4 years ago when first building my '87 325e LeMons racer, but I lost it somewhere along the line and ended up getting a complete ECU that was already chipped instead (I can confirm that the rev limiter does get raised - made the difference between shifting at the end of a straight or not while on the track). I just found it while cleaning up the garage, and I'm swapping a different engine in the car, so I no longer need it.
I never got a chance to test it, but was told it worked fine when I purchased it back in '08. So I can't guarantee it's operation, but there's no reason why it shouldn't work. Asking for $70 shipped anywhere in the 48 states. I take Paypal. Please email if interested, as I may not check this thread very often. ltdscott AT THE gmail WITH THE com.
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