hey all,

i have a 91 f-150 with the 300 6 in it . i have put new cats on it and now I need an opnion from you guys. I want to put a y-pipe behind the cat. converter and run striahgt pipes from there out the back. Is it worth it or will it sound like crap???



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1991 FORD F-150 XLT LARIAT
4.9L 300 6
EFI
4X2

 

f-150-91 Hi welcome to the site....If you have any doubts about the "Y" pipe take a look under any V-8 Mustang GT... the reason behind the "Y" pipe.Is to equalize all cyl.press.and provide som e back press.at low speeds.all that changes when you lite up the tires. My wife has proven that to me. what a rocket..BY the way she buys her own gas...hope this helps you out...OLDGRAY

 

In this case though the "y-pipe" is put on an inline-6 motor using the y-pipe to output to twin tailpipes. Shouldn't think it would sound much different than a single out rear tailpipe. No performance difference, only added weight of running another pipe.