Quote:
Originally Posted by tdott
The power loss / hesitation might be a tuning issue with a more free flowing exhuast.
Here is another thread about it, we got some logs to definitely confirm something is up.
My tuner has also confirmed he makes no changes below 3k. So that could explain things. We need to get a tuner to look into it.
https://www.m3post.com/forums/showthread.php?t=1716181 |
Hmm, never thought of it as a tune issue. I have BPM stage 2 and this was never a problem on the previous catless, resonated x pipe I had. Feels more to me like the design of the X location is efficient at higher rpm as the scavenging effects kick in, but low rpm there's not enough flow to take advantage of that effect and is in fact a little detrimental. I'm not an engineer, but maybe if the rear section is a little more restrictive then that accentuates the low rpm scavenging issue.
I'm really hoping it isn't something else like the car pulling timing due to knock. Only a dyno run log will confirm that. Will hopefully know soon.