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Stock vs UPR Comparison

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Uploaded by on Feb 22, 2010

1999 Mustang GT

This is a video made to show the difference between the stock H-pipe
and the UPR Offroad X-pipe with the Flowmaster 44 mufflers.

Category:

Autos & Vehicles

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Standard YouTube License

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Uploader Comments (SmKnSTANG96)

  • does the flowmasters super 40 or 44 sound better?

  • @fireballfury1 44's all the way.

  • Sorry , maybe asked already but was this setup street legal, best sounding exhaust by far on a gt mustang

  • @laredo300c The exhaust is "NOT STREET LEGAL" That term is really only used because you cant pass emissions. Reason being why cops pull you over is cause of noise ordinence. So again the term not street legal is only cause it cannot pass emissions.

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All Comments (115)

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  • @fireballfury1 ....44's lower rumble sound....40's louder less rumble sound...40's are louder if that is what ur looking for....

  • just ordered the same o/r x for my 98 gt, is there any drone around 1500 rpm?

  • Sounds really good!!!!.......Thanks for this comparison vid.

  • @danimal511 I know.

  • @SmKnSTANG96 O/R = Off Road

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