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Old 05-24-2010, 12:48 PM   #27 (permalink)
Aero Wannabe
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Join Date: Dec 2007
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TDi - '04 VW Golf
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In that case I would recommend TDI owners ditch the 14 lb. muffler for a straight pipe. When my factory exhaust rusts out I'll go oversize from the turbo back. This sounds like one of those rare cases where you get both more power and better economy at the same time.
60 mpg hwy highest, 50+mpg lifetime
TDi=fast frugal fun

Originally Posted by freebeard View Post
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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