You're talking about straight dual pipes . ..STONECOLD said:I dont have a six but I'm fairly certain that I read some where (possibly here on our forum's.) that the six doesnt gain anything performance wise with an H pipe other than a better sound. I belive it has something to do with the firing order of the motor and the way the pulses travel through the system. Some one please correct me if im wrong.
V6racer04 said:how much power will an 87 octane performance tune give you on a programmer?
philmac said:I have a max micro tuner and I didn't use the 87 octane program I used the 91-93 octane program. I predict 8-12HP and At least 15Ibs of torque. It really made a difference, more than my exhaust and CAI combined