Tune needed?

6MT · 08-30-2010, 02:48 PM

Quote:

Originally Posted by ImportConvert

Do you need a tune for HFC's and a Cat-back? How "adaptive" are these cars? I know the factory tune is conservative (as are all factory tunes), but does HFC+Catback throw the tune off, or do people get tunes just to raise the rev-limiter and get a few extra horsepower by being a tad less conservative than OEM?

Any A/F included dyno's of a car with HFC/Catback and no tune?

There are 4 factory ECU "tunes" for the 2009 (not sure about the 2010's). Some say that with these "bolt-ons", that you need to fiddle with the A/F ratio. I never did and I don't have any issues (never had after 10K kms). My dyno showed improvement over the base-line (factory) numbers.

IMHO no, you don't need a tune. But some will say that it would help. I have never seen the need for one.

(please keep the flaming low.... I know this is a hot-button issue with some.)

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