Quote:
Originally Posted by IdahoRob
I ran like this in Portland for 2 days at the track, didn't see any coolant/oil temp problems. Now I don't have EGT probes, and i would think they'd be higher, but within tolerable levels when engine is stock. I think the CATS have more flow issues than the factory muffler in quiet mode. Again, no hard data to back this up, just my thoughts. Why add an aftermarket, quieter muffler when you have something already on the car that does the same thing. Just my $.02
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oh, I 100% agree with you. I was just poking this collective mind to see if there's also a downside. I also kept the original exhaust and forcing valves closed could be a very good option.
do you have some instruction to share on how you achieve it? (private works too in case you don't want to post it)