Quote:
Originally Posted by wparsons
If you lost enough torque to feel a "drastic difference", you're talking about a drop of like 10lb/ft+, not 1-2. There's simply no way the exhaust caused you to lose that much torque.
It's either perception from the extra noise, or the ECU needing some more drive cycles to adapt to the new parts. Give it a few more drives to see if it improves. If you REALLY feel like you've lost a noticeable amount of power then have it dynoed back to back with the stock vs perrin exhaust and see what the dyno says, it won't lie to you.
Here's Perrin's published dyno chart:
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You bring up a good point about the ecu needing to adjust. Since I only got it installed yesterday, it will take a few days to settle in I guess.
I wouldn't say it's DRASTIC. I would say it is a tad under 'very noticeable'.
It could be a bunch of things. Maybe I am expecting it to increase bc of the noise. Maybe because it smoothed out the power band to be more linear, then it feels this way.