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Old 11-13-2020   #5
Karl
 
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Join Date: May 2013
Location: Chicago
Posts: 982
Default Re: Factory Exhaust Manifold horsepower data

Quote:
Originally Posted by efnfast View Post
But why would you build a 368 with stock exhaust?
To be 50 state emission compliant, especially California. I believe Lingenfelter sells, or use to sell these packages with a warranty also.

That is something not seen today. Building a 500 - 600+ hp car with a tuner warranty.
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