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No plans for that at this time, basic economies of scale dictate that getting a decent price means we do 100 at the same. Making a limited run of kits without tips would actually make them cost a lot more...like $200 more per kit. Again, that's economies of scale...
We need a "kit" for 2021+ Ridgeline that will permit installation after the cat. for a modest sound producing muffler, clamps, anti drone pipe,(the dual look is already there so you don't have to be concerned with that)......how about it, folks ?
 
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Discussion Starter · #23 ·
What does that short dead end pipe do ?
The Helmholtz chamber is a special tuned side brand resonator that trims down a specific range of frequencies we don't want in the results. We started with just a big Magnaflow muffler on our Ridgeline and straight pipe all the way back to the tips and drove that with a sound spectrum analyzer (a laptop computer with mics and some special software). What that software showed was a spike at 129hz peaking between 2000 and 3000+ rpms, the range folks commonly call 'drone' and what you hear from that kid on the freeway with the Honda Civic and the coffee can sized muffler outlet going 'Bahhhhhhh'. I also drove the standard Magnaflow single tip system and it has bigger a spike that can hit 88-92 db at 129hz at about 2100-2200 rpms, which is way too much for me. Some special software is used to analyze the results and design the special side branch resonator to trim down that 129hz spike. For us with the bigger Magnaflow muffler we get a smaller spike and it is spread more evenly in the 2000-3000 rpm range so we focused the tuned chamber on trimming down the 129hz in that range. Most high end cars have these built inside the mufflers these days.

We need a "kit" for 2021+ Ridgeline that will permit installation after the cat. for a modest sound producing muffler, clamps, anti drone pipe,(the dual look is already there so you don't have to be concerned with that)......how about it, folks ?
Doing a 2021 is the next logical project for us on Ridgeline. The world is a little crazy right now but if time permits we will be looking at it.
 

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2017 RTL-T FWD
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In the meantime, Google Helmholtz resonator……the ‘21 has one under the hood that covers most of the battery.
 

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Looks like six to me……but who’s counting.😉 The various chambers accomplish (supposedly) one thing.
 
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