2003 G35 260 horse

[ptrpn3283]

What is the difference between the smaller and larger horsepower engines is it computer based, fuel injectors or a combination of things. Also, can I change theese things myself if they are indeed changeable.

[soul_hfk]

if your lookin for more HP have u looked into a turbo or a supercharger?

[srv2nv]

For the 2003-04 model years, the V6 produced 260 horsepower and 260 ft·lbf of torque in the sedan, 280 horsepower and 270 ft·lbf in the coupe. However, owners of various G35 enthusiast groups have shown that the engine produces more than the rated 260 horsepower; in fact, the 2003-4 G35s were producing 260+ horsepower to the rear wheels, indicating even higher flywheel horsepower. In the 2005 and 2006 model years, those with automatic transmissions (both sedan and coupe) produced 280 horsepower and 270 ft·lbf of torque, while those with manual transmissions produced 298 horsepower and 260 ft·lbf of torque (again, both in sedan and coupe form). There is speculation that the output did not actually change, and Infiniti merely updated the specifications to their actual figures (instead of the under-rated 260 horsepower).

Hope that helps a bit. As for the rest, I believe it was intake, exhaust and programming.

[G_whizz]

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