Originally Posted by turboboss
Originally Posted by LEE-RS
my brothers got a jamsport head on his rs turbo best mod he ever did
a modified head weather its from jamsport or another company is such a good mod due to the engine gaining power right through the rev range. this ois one of those mods were you will feel and hear the differents.
I don't agree with that. It is dependant on the spec. You can kill the torque by fitting a modified head on a car that doesn't need one.
I ran a standard head until well into 200bhp and the car felt great. When I changed over to a ported head, the peak torque dropped heavily.