• Tiny
  • manovsky
  • 2008 Dodge Ram
  • V8
  • 2WD
  • automatic
  • 26,000 miles

I own a 2008 Dodge Ram 1500 quad cab with a 345 hp. 5.7 L Hemi engine. I replaced the stock air filter with a Spectre Performance airfilter. My fuel mileage increased from 13.5 mpg to an average of 16 mpg. I then added a Flowmaster 40 series dual exhaust system. My fuel mileage increased another 2 mpg. ( 18 mpg city / highway with a 392 rear differential )

My question is:

Can you tell me how much horse power I have added with the above modifications?

Wednesday, March 9th, 2011 AT 8:11 AM

1 Answer

  • Tiny
  • mhpautos
  • Expert
  • 29,857 posts

The vehicle will have to be run on a chassis dynamometer, this will be able to calculate the engine performance under all conditions.

Mark (mhpautos)

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Wednesday, March 9th, 2011 AT 9:01 AM

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