560 sl horsepower
#1
560 sl horsepower
I am interested in any information or links to sites that concern increasing the performance and or horsepower of the engine for an 89 560 sl. Specifically, is it really only 227 horses from the factory, and secondly are there options available other than the "jet chip" which require a shipment back to thier shop and 400 plus bucks for what they say is only a 15 hp gain.
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