Quote:
Originally Posted by DAEMANO
Don't be pissed. There are no independently dyno'd cars that reflect a larger diameter mid-pipe improves the performance on this car outside of margin of error with the stock tune, header and front-pipe. The 2.25" midpipe in the TRD catback also does not improve peak WHP with the stock tune. It does slightly improve the midrange torque with OEM tune by increasing EGT and thus scavenging. There's an old dyno sheet on this board from 2013 that shows it.
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Again, as mentioned before, C38 and soon flex fuel. But it's not so much about power, especially with an SC as the most notable power gains come from simply deleting the cats. The fact that it's a $1200 option, presumably partly because of the midpipe, and it is a smaller diameter is a bit annoying. Not for any logical reason but then again, what if I went turbo? See my comments above.