Fast Intentions does not mention, nor do they appear to be, equal length. They do mention “firing order specific” which I’ve read is a term that’s not really used anymore.
I went with Motordyne and will have Swain Tech coat them. I was happy with their exhaust, liked that these can also have a Helmholtz test pipe, straight pipe, or even a HFC.
The pipe portion is shorter than what a normal test pipe would be. So they are kind of mid length, but they made the test pipe section as short as possible so the header portion is still pretty long.
I went with the Helmholtz test pipes in hopes that gets rid of anyone unpleasant frequencies.
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