Now that I've done my manifolds and I've seen what makes up the exhaust system, this statement from SLR's website does not make sense:
Quote:
Bolts in place of your OEM exhaust manifold and pre-catalytic converter. Bolts to the flange on the main catalytic converter
Here's a picture (sorry for the quality frown ) of the so-called "pre-cat" and what is behind it taken off my '00 Xterra:


Notice anything? There IS no "main catalytic converter"... just a long piece of pipe (the next thing in the system is the Y-pipe that connects the exhaust coming from the other side of the motor, and then the muffler, and then the exhaust pipe.

The little cat that connects to each exhaust manifold appears to be the ONLY cat in the system.
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