I got the FF manifold + map fitted by Jamsport on and it totally transforms the car in the low to mid rev range. However she only made 185bhp on the dyno, when might have expected 192 to 195 with a mountune 185, but probably needs a service and higher octane fuel.
Interesting! Did you have cams fitted as well? What torque did it make and have you got a printout?
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2005 Fiesta ST - wrote off
Newman fast road cams, Fusion Fabrications custom inlet manifold, custom exhaust