Quote:
Originally Posted by Celinicus
At the risk of sounding ignorant...
I'm not sure you would really want e-cutouts. The amount of lowend you would lose would be fairly significant due to the lack of exhaust velocity. Also, your AF might be thrown out of whack if you have other mods. (probably not dangerously lean but possibly leaner than you would want to run the engine over the course of 100,000 miles). The flip switch system might be a better idea but i'm not sure how well the VQ would respond to straight pipes (my inclination is to say "not well"). I suppose it all depends on the stock ECU and other factors.
Then again, I could be off base by a long shot. Maybe somone else has something to add/clarify/correct?
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Several guys yanked their rear muffler last week and did some Vids. Honestly it was not that much louder than say a Stillen which led to the conclusion that most of the performance and noise restriction was in the restrictive cats. The car runs very rich to begon with. Dyno's posted here with several exhaust mods still showed relatively rich A/F ratios. This ECU has a pretty broad adaptation range as well which is why they are responding so well to mods without re-tuning.