super 40 series muffler for 4.2 liter f150
#4
I put a Flopro V-Force model V6 on mine - no drone in the cab and no loss of bottom end. It's not as deep or as loud as a Flowmaster, but it cracks and pops when you back off. My sister has a Flowmaster 40 on her 3.0 Ranger and that thing is drone city. Flowmasters are not the right mufflers for V6 engines.
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#6
Originally Posted by dk56
so overall its not a bad muffler for this truck i just want to make sure its not going to hurt my engine in the long run you know what i mean i dont mind drone really at all just want to make sure i bought a decent muffler for now
#7
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