which gains will be more ?

[scooby kid]

Hi Peeps
was having a think what to do on the car,
for funds atm i think which way to go,

As cant do all together at once.

my ep3 is stock other than hondata airbox mod and cosworth drop in,filter pipe, spoon cat back,

What part will give me more gains,
a gruppe m and kpro (poss decat to using existing mani and a normal £120 decat pipe?
or dc sports decatted mani and kpro? keeping the hondata air box?

any thoughts guys

 

[Hazz]

I'd say DC and Kpro. You'd get more torque with that set up.