LOUDMOUTH!!
never dynoed my car, but I did see 2 tenths off my ET's at the track after I installed mine. Don't think it answers your question, but you will see some
performance improvement for sure.
<img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
This all with stock manifolds and cats in place! <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
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<strong> Like interior drone? Good because you will get that too. Get a good cat back loudmouth sucks!! It will make your ride sound like an old truck. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Got some strong feelings there huh? I didn't read anywhere that he was asking for opinions on sound though. <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />
Shay
If I had the money I would have bought a Borla but I'm satisfied with the loudmouth for now.
BadAssBlueStripeTA - I agree with you too! That's why I'm going w/ the header set-up. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
But it is fun to start your car with people behind it and scare the **** out of them.
Venkman is about right. The SS/WS6 exhaust will provide a power improvement over the Z28/TA exhaust, but not quite up to "aftermarket" levels. However,the factory-optional SLP exhaust that it sounds like your friend's SS came with will match or exceed the power gains found with most aftermarket systems. Problem is it's also one of the quietest. If that's a problem for him, then the "loudmouth" will definitely fix it. Just don't expect any power gains, and it DOES take a certain affinity for the unrefined to like a loudmouth. Personally, it wasn't for me.
In summary (I've rambled enough): Buy catbacks for SOUND, FITMENT, and LOOKS preference. Buy headers for POWER (and more of whatever sound you created with that catback!!!)

