how restrictive is the stock exhaust system?

2000GTnoExtras said:

I would love to replace my midpipe, but sadly, in CA it is technically illegal.

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wms004 said:

that depends on where you take it.. Catted midpipes will pass the sniffer just not visual (since the 2 preheaters are missing). So, just find a shop that will pass you as long as you pass the sniffer.. there are lots of gas stations out there

magnaflow catted x has been one of my favorite mods thus far

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Sam98 said:

Not really if you compare it to the stock exhaust systems of the 70's. Back then you could gain 5% by installing dual exhaust, and another 10% by installing headers and the whole system cost $200. Now you'll spend over $1000 and gain 2-5%...

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