Emission-related question
#1
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Emission-related question
I bought my N/A s4 back in September. Some stuff was already done to it. One of the things that was done was the air pump was removed and the previous owner installed straight pipes and pulled the cats. The car is very loud now. I was thinking about putting in high flow cats for smog reasons. Will the air pump be necessary to re-install any cats?
#4
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Rotarys run alot hotter than a piston engine. Honestly I believe you should put that air pump back on, if the heat isn't an issue at first, it will greatly shorten the life of the cat down the road without the pump.
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Originally Posted by BlaCkPlaGUE
Rotarys run alot hotter than a piston engine. Honestly I believe you should put that air pump back on, if the heat isn't an issue at first, it will greatly shorten the life of the cat down the road without the pump.
You can try to rig an extra vaccum line off the manifold somewhere for it... someone else will know I'm sure.
--Gary
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