Stillen Headers + Berk HFCs self-install report

wstar

Well I think I know what you mean about the cat rasp, and I don't really mind that sound at all. I think I have something else going on too, some weak spot that doesn't really leak at idle or even revving under no load, but adds a pronounced buzzy sound to the exhaust note at certain rpms under accel. I've noticed also that if I engine-brake back through that same range, the buzz is replaced by a hiss like pressurized air leaking, which I'm guessing is also a good sign of a leak.

In any case, I've got a short vid from this evening so people can get some idea about the sound. The ugly buzz I'm talking about doesn't really come through on the video (odd). Then again, neither do the low frequencies either (I guess my mini-dv's mic sucks). You may think it sounds low and grumbly rolling around the parking lot at the start of the video, but the video is really missing most of the even lower frequencies. It's even more beastly in person. Under acceleration the audio track sometimes seems like the car gets quieter as it passes through certain RPM ranges - again that's the low frequencies the mic can't handle, seems to kinda mute the rest. There's no full-throttle runs in this, mostly light throttle just rolling up and down the rpms a bit. There's one good 3/4 throttle run through a couple of gears near the end though.

-- bleh youtube "processing" is taking forever this evening...
[YOUTUBEHQ]YS98sdExjz4[/YOUTUBEHQ]

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