BEST EXHAUST FOR O.B.
05-02-2008 | 02:32 PM
#4
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From: Double Oak, TX
The 928 International Cat back System
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Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
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05-02-2008 | 04:48 PM
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From: N NJ
I've done lot's of testing on the 16V exhaust back-pressure.
The best muffler system is Borla. Single 2 1/2 pipe more than enough for 16v na.
Magnaflow is not a bolt on but is just as nice as Borla.
For more HP use Roger's Y pipe into 2 1/2 cat. If a cat is not used then the bottom end torque falls off. It'll be a dog off the line untill 3000 RPM. 16V needs some back pressure for low RPM torque.
Tony
The best muffler system is Borla. Single 2 1/2 pipe more than enough for 16v na.
Magnaflow is not a bolt on but is just as nice as Borla.
For more HP use Roger's Y pipe into 2 1/2 cat. If a cat is not used then the bottom end torque falls off. It'll be a dog off the line untill 3000 RPM. 16V needs some back pressure for low RPM torque.
Tony
05-02-2008 | 05:15 PM
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From: We are there!(San Diego)
05-02-2008 | 05:42 PM
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