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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
ok so i put 40 series flowmaster on my 90 gt with 2 1/4 inch pipe its not quite as loud as i thought it would be can you guys tell me what all u have so i can see what im missin for sound
the 2-1/4" dia. Flowmaster fine if your Stang is basically stock, like stated above, just pop on a O/R H-pipe (2-1/2") and maybe even a set of shorty headers if you have some extra $$$
Its the size of your pipe, and if you have the stock h pipe that doesn't help. The cats in it calm the sound down alot. My 2 1/4 tail pipes quiet mine down alot more than I like but its all I have.