After hearing corsa extreme exhaust systems in person and Looking at this video of one opened up. It appears they are just using the Helmholtz Resonator method but in reverse of its typical application. Looks to me like they are using a super short Helmholtz Resonator to cancel out the low frequencies, then using a hollow "tinny" chamber to amplify the high freq sound? Could be wrong... but they sound completely different than any other muffler I've heard.
I'd like to setup a DIY version of this... Was curious if the "Chamber" is really needed? Would a simple pipe like this right after the header that was capped eliminate a lot of low freq sound? Is the #2 pipe needed? I don't ever see that on the Helmholtz Resonator sites/videos.
This is on a race car, not a daily. Not concerned about noise. Just after the more "Exotic" high freq exh sound. This is for a 13:1 5.3 LS with ITB's.
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Here's a video of the typical high pitched Corsa exhaust whine I was after.
I'd like to setup a DIY version of this... Was curious if the "Chamber" is really needed? Would a simple pipe like this right after the header that was capped eliminate a lot of low freq sound? Is the #2 pipe needed? I don't ever see that on the Helmholtz Resonator sites/videos.
This is on a race car, not a daily. Not concerned about noise. Just after the more "Exotic" high freq exh sound. This is for a 13:1 5.3 LS with ITB's.
Here's a video of the typical high pitched Corsa exhaust whine I was after.
