i think the 2v mod motors like long tube headers, i've heard alot of good things about them and the associated h pipe. not sure about the shorty's. i think you might loose a bit of low end torque though. biggest thing is the price for them and difficulty installing them. even worse with 4v

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Rather Be Blown
"Remember...Ford does things exactly a certain way....except sometimes!"
Cheap, Fast, and Good...you can only have two :'(