There was an interesting post recently about the flow ratings of todays top selling mufflers, with a product from Dynomax testing better than the others. One person posted a spec sheet with the ratings, which was quite helpful, except......HOW do you translate flow ratings into a gain/loss comparison in terms of horsepower? I understand that the Dynomax had a far higher rating, somewhere near 99% with the trusty Flowmaster being in the sub 50% range. I'm curious since I have Flowmaster 42451 mufflers in the Charger and have been pleased with the sound, but if there is some power to be gained here..... Any comments?
