Protomotive 993 turbo muffler and cat bypasses

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Uploaded by on Mar 25, 2007

Sadly this is the sound of a car running on 5 of 12 plugs after coming back from a local mechanic. With all 12 firing it sounds like a sewing machine, lol. Torque at the rear wheels is 660ftlbs, 1/4 mile trap speed 133mph.

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Autos & Vehicles

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  • The most beautiful of all 911's...

  • The last true 911 and it's ultimate evolution.

    That said I wouldn't kick a 997 GT3 out of the garage.

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  • @norcalnorway How many cars have you heard of that use twin plugs? Top Fuel dragsters that make 8000 horsepower on nitromethane? It's pretty much a waste for 600hp

  • @FenderBassman155 Probably has a twin plug setup

  • How did you override the after Cat lamba censer from not sensing the Cat working and putting on the engine light.and making the ECU go into safe mode. I ask because I have the same car & want to make the same mods but I'm being told putting these De-Cat pipes on will create these problems ?

  • @CrudeOctane i agree, they just made the displacement in the new-ish ones too big.

  • 5 of 12? You mean 5 of 6.. These are flat 6 cylinder motors..... ???

  • The old (er) Porsches sound so much better than the new ones.

  • what a turbo muffler?

  • are you sure you're not just camming out? haha

  • yea i can tell its not running on all cyclenders it has a bad miss to it u need to get that checked out

  • niiiiiiiiiiiiiiiiiiiiiiiiiiiii­iiiiiiiiiiiiiiiiiiiiiiiiiiceee­e........

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