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      10-12-2009, 09:46 PM   #18
DGHMZed
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Drives: Z4 M Coupe
Join Date: Aug 2009
Location: Jawja

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Quote:
Originally Posted by ryanchua View Post
Update:

I fitted back my stock resonators. Found the low end slugginess too much for me to bear. Had been driving for over 3 weeks with the custom X-pipe and it SUCKED ASS.

There seemed to be a perpetual flat spot of acceleration from 40-80 and if you're in the wrong gear, you would need to wait till your needle climbed to 5500 rpm and above before it would actually start pulling hard. Hated it. Took out all the fun in the car to be honest.

Fitted back the stock resonators(x-pipe) and the car felt like i did a software upgrade instead. I didn't opt for the tuning as i was in half a mind to go for a supercharger upgrade. I'm going to keep my car as it is, just the KKS mufflers. It sounds all nice and good now. With the custom straight through X-pipe it sounded, like a really bad civic.

For those who are running muffler deletes, if anyone has dyno numbers (or links) to them, feel free to post them here and specify your software.
Any idea why the lack of resonators had that effect?
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