Test pipe/car's brain
 

Ok, i didn't really know how to search for this. People have told me the car will alter all it's power curves depending on how you drive it. For ex if you just drive highway all day it saves gas but seems to have less power if you slam the gas at an intersection when you get off. My ? is after putting on test pipes, it sometimes seems like im losing torque and it's just not going like it should, then at other times if i have been driving like a bat out of hell it will start to pick up on this and i can feel it pulling when i take off. I need to know cause half the time i feel im running only 5 pistons:confused: . That or i blame the sweet sounding test pipes:cool: . I basically want to know why we can beat g35, yet if i have been driving highway all day and race a g35, i lose by a hair even after the better start:mad: .
Sorry if this has already been posted somewhere

well what other upgrades do you have on the car and who installed the test pipes

Its in your head. Show me some before and after dyno charts.

it must be, i installed everything. I have having anyone else do it cause if they mess up anything, they wont say anything. at least if i mess up something, i know what to fix. have one of you guys had your car dyno tested?

i forgot to add i only have a cold air intake and hks true dual w/ turbo xs pipes

Your problem is, you altered the air/fuel ratio for the car by changing stock parts to aftermarket.

Now you need a reflash or tuning to get the AFR where it should be, which will increase power.