Originally posted by DrLove'sKuDang
I am not as familiar with the cats on those, but they usually have some headroom. Perhaps V6P could answer that.
As far as your analysis, I didn't think anything appeared to be wrong with your powerband. It is peaking at about 6250, when the stock peak should have been right around 6100, the output is about right for a bolt on J32, and it pulls to the peak about like you would expect.
I think it is just charachteristic of the J series. They peak, but they don't really run out of breath before the rev limit. That is one reason why the most frequent comment I have read on these regarding power delivery is that they feel like they could pull another 500-1000 RPM.
I agree with that statement. My mom's 02 Accord being completely stock, would peak, at 5600 or so, but keep pulling right to the rev limit. You could feel it finally start to taper off just above 6K, and that was the most pedestrian version of the J series ever made.
With the 06, and the subsequent revisions to the heads etc, it bangs into the rev limit like it is on its way to 7500.
Personally, from what I have seen others come up with, you are pretty close to ballpark, and the powerband looks normal. I am not the ultimate J series expert, but it looks OK to me.
Maybe you need something else like a tuneup and valve adjustment. Those can both have relatively profound effects on your output.
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