Boost RPM

[ToyTruck]

Hey guys, does anyone know at what RPM boost starts for the (mid) yd25? I seem to have lost a bit of torque at low RPMs after installing a straight thru mandrel bent 3" exhaust. Would torque really be lower with the 3 incher than with the stock exhaust off boost?

 

[tweak'e]

mate, can you start another thread instead off hijacking this one?

 

[ToyTruck]

Sorry mate, a bit on the clumsy side. Still not used to these forums.