I'm going to put an order in for this additive ASAP. My only trouble like others are saying, is getting it into 2nd on a cold start up even after FRPP short throw install. Couple quesitons:
How much of the XL-18 do you add? The whole bottle?
Also, I order the the whiteline positive shift kit bushing that is suppose to help with shift engagement under dynamic load. Think that will help too?
-Black 2012 5.0 Mustang (manual); Cobra Jet intake with twin 67mm throttle body; MGW Race Spec shifter; 545g Flossy Shift Knob; MAC axle-back exhaust; SVE black GT4 wheels, 18x9 front, 18x10 rear SOLD
-Ingot Silver 2011 V6 Mustang (auto); 10 psi Procharger supercharged, full exhaust- BBK headers & catted x-pipe/Borla mufflers, 1-piece aluminum driveshaft, 3.73 gears 409rwhp/313rwtq SOLD