I believe with these small mods the "stock " tune would be fine their would be enough "learning" capacity in the stock ECU tune to cater for these mods.
If your running OFT you would run Stage 1 tune untill you change headers.
I believe OFT Tune are done on USA 91 octane so running 93 give a bit more safety margin for knock but probably no more power unless you changed the tune to take advantage of the higher octane fuel.
The hi flowcat and filter may make a small difference in hp over a stock car guessing 5 hp
Quote:
Originally Posted by Fizz
Would fitting an aftermarket catted front pipe with high flow panel filter (to an otherwise stock car with stock tune) make it run richer or leaner?
Hence, would a 93 specific OTS tune extract more power/tq from the engine given the above mentioned (mild) mods?
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