As a rough estimate, your octane should equal at least half of your compression.
185psi = 91 octane
200psi = 100 octane
http://www.x-h2o.com/threads/11702
http://www.x-h2o.com/threads/9526
http://www.x-h2o.com/threads/6029
http://www.x-h2o.com/threads/5843
TDR makes two: the baffled one and the powerspray.
The baffled one has less baffling than stock and is purported to emit a lower, growlier tone.
The power spray version is a hollow aluminum box with a jet spray of water at the exit that deadens the sound. It is said to be MUCH louder and...
It's a 1993, these things happen.
Replace the gasket with an OEM one, add some high temp sealant and you should be fine. Put some blue threadlock on the manifold bolts.
:biggthumpup:
Contact John Zigler for the gasket. He's here on the boards...
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