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Serious decrease in MPG with Fabspeed Maxflow

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3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHSerious decrease in MPG with Fabspeed Maxflow

1 matching discussions were examined; no attributable action/outcome evidence was detected. No consensus or repair conclusion is claimed.

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1 matching discussions · 3 captured posts examined · 0 partial discussions

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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T091943Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Because I can't keep my foot off the gas . Installed it monday and it is amazing. Don't have much to compare it to since it's the only non stock muffler I've heard in person but I love it. No resonance whatsoever on the highway or sidestreets. It sounds amazing especially when you turn the key and hear the initial engine startup rumble. I was fairly nervous having it installed as I didn't want anything obnoxiously loud but it turned out perfect. This is completely opinion as many have stated that it was too loud for them so it's all relative. Well just sharing the experience for those looking for new mufflers.

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