[Buick] VR V6 Crank angle sensor Power effect and tune

[kaino]

g''day just wondering if a dodgy crank angle sensor can effect power/response, and also should i have my car tuned after full 2 1/2" sports exhaust with extractors, stage 2 shift kit fitted, how much does it cost for a tune?
cheers

 

[Dr HaxZaw]

With just the exhaust i wouldnt worry about a tune as the computer can adjust it slightly as it is (not sure if this is true for vr but i think it is)

Wait until you've got a few more mods on it before worrying about a tune