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Discussion Starter · #1 ·
Does anyone have any experience or knowledge with upgrading the 4V 916 on the 2002 S4? I have thought about changing the cams to the Superbike ones but is there a site/shop that makes an engine upgrade kit for the 916 (e.g. bored cylinders and pistons)? Thanks for ANY feedback.

Chris
 

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The SBK cams will not be noticeable. SPS cams would, but they are getting hard to find, and expensive when found.

Best upgrade--by far--would be an 996 engine out of an ST4s, and go from there. An interim, quite noticeable and very good "bang for the buck," upgrade would be a Nichols flywheel--which you could swap into the 996 engine when the time comes.
 

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Discussion Starter · #3 ·
Thanks for the info. I was looking at the 996 upgrade vs. a 955 big bore because the cost is about the same for about the same power. It would come down to the reliability of the 996 vs. the 955; and the 996's would be better. Thanks for the flywheel info; I will check into that as I begin the 996 build.
 
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