Thread: new srt6 cat delete downpipes
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Old Mar 28, 2010 | 10:40 PM
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BrianBrave
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Joined: Apr 2007
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From: So Cal
Default Re: new srt6 cat delete downpipes
Originally Posted by billvp
for those of us in states with smog tests, what do the various options mean? Would the variation with high flow rear cats pass smog?
Have an exhaust shop bend you two replacement pipes to fit from the exhaust manifolds to the crossover pipe to replace the CAT's.

Then, simply bolt on your OEM pipes with the CATs prior to the smog check. (I needed to drive about 50 miles to get the ECU and sensors to reset)

Let the shop know it's strictly for the track if they raise legal issues - even have them bolt your OEM pipes with the Cats back on so you can drive out of the shop legal.

Take care not scratch your roof when you tie your new pipes up there to get them home.

At home you can swap back and forth (helps with a buddy) with the car up on jack stands.

No real gains to be had - but they sound nice and will keep your cats from rattling to pieces and having to spend even more $$ down-the-road on new ones so you can pass smog check.

Place a bag of desiccant in each end and wrap up the openings to prevent moisture damage to the cats.

Sometimes I envy you guys who don't have smog checks every two years.. CA is going to start smog testing diesels - luckily for me - my ol' IDI is exempt.
 
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