MustangWorks.com : Ford Forums - View Single Post - flowmaster single into double please help

Jett · 06-07-1999, 05:46 PM

oh , u won't get much hp unless you change out the header or have it ported, it is real restrictive, the cats don't help either.

Brad.

06-07-1999, 05:46 PM	#4
Jett Registered Member Join Date: Sep 1998 Location: Tallahassee, Fl., US Posts: 130	oh , u won't get much hp unless you change out the header or have it ported, it is real restrictive, the cats don't help either. Brad.