what is the diffrence in the core itself ,i.e housings ,plates, seals horsepower

 

How much Horsepower did my car come with from the factory?

(S4)86-88 NA = 146 HP @ 6500 RPM w/ 138 Ft/lb @ 3500 RPM
(S4)86-88 Turbo = 182 @ 6500 RPM w/ 183 Ft/lb @ 3500 RPM
(S5)89-91 NA = 160 HP @ 7000 RPM w/ 140 Ft/lb @ 4000 RPM
(S5)89-91 Turbo = 200-202 @ 6500 RPM w/ 196 Ft/lb @ 3500 RPM
Infini IV = 215 @ 6500 RPM w/ 206 Ft/lb @ 3500 RPM

- Taken from the faq

 

yeah i know those what i mean is the cores them selfves

 

S5 has a different intake manifold, higher compression rotors etc. ......

S E A R C H.