Flywheel
Senior Member
Joined: Apr 2004
Posts: 1,068
From: Kincardine, Ontario Canada yeah Canada bitches
Originally Posted by treceb' post='885070' date='Oct 10 2007, 08:25 AM
i believe S4 rotors have a cast look to them as opposed to a machined look on the S5. Confused?? i was till i had them both in front of me...
The S4 are cast, but this is only visible in the bathtub (combustion chamber), the S5 are machined there as well; you can usually feel this through the exhaust port.
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