VT weird problem, please help

[JSTCOZ]

Hey guys,

Got extractors on a few weeks ago and now sometimes when i plant my foot the car seems to be making a weird sort of 'gap' in the sound and you can feel it kinda easing off in bursts (very small ones) when im still putting the power down. It just feels like the car isn't ready for the put down kinda. This doesn't happen everytime i'm in the car, just depends on the situation i guess.

Really sorry for the crap explanation guys =/ hard to describe what it is.

Could this be something with my diff or maybe something with the extractors is loose?

Thanks for any light you can shine on this =)

[sedgewik]

could be tps

Symptoms of a Bad Throttle Position Sensor | eHow.com