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04 C4S, Worthy engine mods, intake/plenum/cats


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I like my Fabspeed CAI. You might want to do a Short Shift kit too. Im looking at the RSS Plenum now. I hate the $1000 price new but would definitely go for a used one. The cats are not going to give you much unless you include a highflow manifold and mufflers to go with it. Unless you do all that work yourself, IMHO the bang for your buck would be too small. I agree with viper about the chip.

Edited by vette67
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Norby,

I have thee Fabspeed mufflers and cold air intake on my 996 C2. Its a sound upgrade more than anything. But I like it much more than the sound of a stock 996. I love the sound of my car. I have the chip as well. I bought the car with all these mods including the short shift kit (a must have IMHO)

I have the RSS plenum too. I bought it used from another member of the forum. In my case the performance gain is noticable. I love it. I agree that the ask price of $1000 for a new one is a bit much.

Would forget about the cats. A waste of money in my opinion.

If you want one see if you can find a used one (the plenum.)

Phillipj

Edited by phillipj
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