cat back or MORE?

[Ti Kan]

Festively Jolly writes:
> hey list.   after a single year's use of a new OE exhuast, it needs
> replacing.  the car is a 1988 Audi 90 FWD.   i want free flow (or do i?)
> for a little more power.  should i go cat back or more than that?  i
> dont understand how just a cat back can erally improve things.  i would
> think a person would have to do it right from the engine.

Cat-back because that's the only thing legal to do in the US.  Vendors
don't like to sell anything without cats and/or a different cat because
they don't want to break the law.

You have a normally aspirated engine, not turbo.  *Some* backpressure
is actually good, it promotes torque at lower RPMs.  Don't look for
too much gains in this area.  Most you'll get is around 10hp or so.
Which system or muffler(s) you choose is basically based on quality
of component and the type of sound.

-Ti
01 S4 2.7 biturbo quattro
84 5000S 2.1 turbo
80 4000 2.0
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    ///  Ti Kan                Vorsprung durch Technik
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