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I’ll be uploading some underbody photos of the new install by May 15th — or the 23rd when I do my oil and filter change. It fits clean, and honestly, it looks better than stock. 😎

CATS ? his Truck & mod will pass inspection every year . NO doubt

Totally fair question — and you’re not a buzzkill at all. The muffler swap doesn’t touch emissions components, sensors, or the ECU. It’s a post-cat mod that only affects sound and flow. Legally, under the Magnuson-Moss Warranty Act, the manufacturer has to prove that this specific mod caused...

none . !!

Zero real gains — except bad noise. You’ll lose tone quality, probably get rasp or drone, and won’t see any real performance bump. That rear unit does more than people think.

I thought about it too, but from what I’ve learned, that secondary cat isn’t just dead weight. It helps with emissions and even muffles sound a bit. Removing it might give a slight bump in flow, but the gain would be minimal. Plus, it's a legal gray area…. (CHECK ENGINE LIGHT ..? )

I’m almost 60 years old. Let me give you a reason… actually, a few. I replaced the stock muffler not because it was broken — but because it was restricting. The stock FoMoCo muffler is designed for maximum noise suppression and lowest production cost, not for performance or efficiency. It...

I get what you’re hearing. The ‘25 definitely feels different — more growl on startup and a bit more resonance. But honestly, this new engine feels like it welcomes the boost from the twin-scroll turbo. It’s subtle, but you can tell it wants to breathe. Now… the transmission? That’s another...

Totally fair — but I’ve got a few miles under my belt 😎. This new engine + this muffler setup = it breathes free and pulls strong. I’d love to feel this thing with a 5-speed manual. Would be a blast.

Below 2,000 RPM it’s got a deep tone, especially from 800–1,500… pure music 🎵. Above 2,200 RPM? Just a soft rumble, barely noticeable inside the cabin. No drone, no drama.

es — exactly. Below 2,000 RPM it’s got a deep tone, especially from 800–1,500… pure music 🎵. Above 2,200 RPM? Just a soft rumble, barely noticeable inside the cabin. No drone, no drama.

Exactly! From idle to 2,500 RPM it’s all rumble and character — like the muffler’s been sipping Scotch and lighting a Lucky Strike. Past that, it calms down and flows clean. Pure balance

Title: 🔥 Just Swapped FoMoCo Muffler for MagnaFlow 12255 — UNBELIEVABLE Difference! Yesterday I replaced the OEM FoMoCo muffler on my 2025 Maverick XLT 2.0L EcoBoost (MPC engine) with a MagnaFlow 12255, and I have to say — the transformation is insane. 🔊 Sound At idle to ~2,000 RPM, it has a...

Fair enough — we all value different sources of insight. Just for context: my feedback here isn’t coming just from videos or reading spec sheets. I bring over 44 years of hands-on mechanical experience, particularly with Ford and BMW platforms, both on and off the record. My approach to...

Thanks for the thoughtful reply and for raising some good points. It’s great to see more people in the Maverick community diving into the potential of the 2.0L EcoBoost. Let me clarify my position and also share the logic and experience behind it: On Power Gains & Engine Limits You're right...

SAVE YOUR $$ . The 2.0L EcoBoost can handle somewhere between 300–350 hp safely, depending on how it's tuned and driven. GROUP IV engine OIL - A MUST - But here's the real limiting factor — it's not the engine, it's the 8-speed automatic transmission (8F35). That trans was originally designed...

The 2.0L EcoBoost can handle somewhere between 300–350 hp safely, depending on how it's tuned and driven. GROUP IV engine OIL - A MUST - But here's the real limiting factor — it's not the engine, it's the 8-speed automatic transmission (8F35). That trans was originally designed for around...

"almost" a Quart of oil .

Yeah, Ford bumped the oil capacity from 5.7 qts (2024) to 6.1 qts (2025) on the 2.0L EcoBoost, and honestly, that’s a good thing! More oil means better heat dissipation, longer-lasting oil life, and improved engine protection—especially for a turbo engine that runs super hot. If you’re doing...

The viscosity drop on Motorcraft 5W-30 blend is a known issue, and you're right to be concerned. While Blackstone downplays it, the reality is that the base oil in the blend is not high-quality—it shears down too quickly, even without fuel dilution. Motorcraft full synthetic has a similar...