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The bigest bang for the buck on my Viper where K&N's and straight pipes from the cats back (45 HP at the crank). Roller rockers, throttle body and porting and polishing where high dollar, small increases per dollar.
Has anyone dyno'ed this 4.2 before and after? Theoretically, the engine has enough displacement for these 2 mods to yeald 15-20 HP (which you should really feel once the ECU finally stabilizes). Plus, I'm guessing a Maserati with cat-backs sounds sweeeeeet at the high RPM's (Viper is pushing it at 5,000)
Has anyone dyno'ed this 4.2 before and after? Theoretically, the engine has enough displacement for these 2 mods to yeald 15-20 HP (which you should really feel once the ECU finally stabilizes). Plus, I'm guessing a Maserati with cat-backs sounds sweeeeeet at the high RPM's (Viper is pushing it at 5,000)