Somehow .. most reading/graphs etc I have seen ... intake/Cat/Exhaust, they will give you more HP and Tor .. ( not much )
However, header will give you more HP, but "LOWER" the torque .... somehow .. (like 8 hp gain, and 3 ft/lb less .. )
Well, I dont really know the logic, nor have enough background to understand that ..
So, I won't go that far for the header .. and much more labour cost ..  |