Join Date: Mar 2015
Location: Lynchburg, VA
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Need some help folks. Iíve been running the 7Ē with Helmholtz for a couple months now and loving it. Only thing that was bothering me was the look of my tailpipe, never cared for the look of the stock configuration.
So I took it to a muffler shop a week ago and told him to rework the tailpipe to tuck it up tight, come out at 45 deg and exit at the corner of the bumper, but not take it all the way out to the edge of the bumper, keep it back a few inches. Finish it with a tip, keep it as close as possible to stock diameter. He did everything I asked and Iím really happy with how it looks.
The problem is that it really changed the sound inside the cab. From the outside it still sounds good. Whether itís different from before I canít really say, only heard it once from the outside a couple months ago. But I noticed the difference from inside right away.
One of the things Iíve appreciated about Keithís system is the sound when going 25-35 and tipping into it at low to mid throttle. It had a nice low growl, with the gurgle being very articulated and louder than any other exhaust tone, if that makes any sense. Since changing the tailpipe Iíve lost that. The gurgle is still there a little bit, but the volume is very reduced and no longer distinct. Itís muddy and buried in an exhaust overtone. I loved the sound when accelerating from a stop at part throttle and going through the gears, it reminded me of my muscle car days. Now it sounds more like a muscle car and a UPS truck had a baby. Iím also getting a slight farting when taking my foot off the pedal or downshifting, and it seems like a very tiny bit of drone on the highway. I could hear the downshifting before, but since I seem to have traded some bass for treble with the new tailpipe, I think itís making it more noticeable.
Itís not completely terrible, and if I had done the tailpipe first and added Keithís system later I probably wouldnít think anything of it. But knowing what Iím missing out on, itís bothering me.
Iíve attached some photos of the new configuration. Is coming out at 45 vs 90 changing what I hear from the cab? Is it bouncing off the bottom of the bed/bumper since I didnít take it all the way to the edge of the body? Iíve also noticed that the new elbow he put in seems to be a smaller diameter than both the stock pipe and the new pipeÖ is that changing the tone? Did I need to use a different tip?
One option Iím considering is telling him to take it off at the weld and just letting it dump right there after the hanger. I donít know if that would make it better or worse, but I have nothing to lose since I want to do something different anyway.
All thoughts and suggestions are appreciated. This is a 2007 with the factory resonator in the tailpipe.
2007 Tundra SR5 DC 5.7