Best Cat-Back Exhausts for the 2021-2023 Ford F-150

A cat-back exhaust is the first bolt-on most 2021-2023 Ford F-150 owners reach for, and for good reason: it wakes up the sound of the 5.0L Coyote V8 or the 2.7L and 3.5L EcoBoost turbos, trims weight off the back of the truck, and uncorks airflow for future mods — all without touching the factory catalytic converters or your emissions status. At NLP Performance in Tampa, FL, the 14th-generation F-150 is one of the most common trucks that rolls through for a sound upgrade, and the questions are always the same: how loud, what material, 3in or 4in, and how much drone will I live with on the highway? This guide answers all of it and lines up the best cat-back systems we stock for the 2021-2023 F-150, from an under-$600 value pick to premium 304 stainless.

What Does a Cat-Back Exhaust Do on a 2021-2023 F-150?

A cat-back exhaust replaces everything from the catalytic converter back — the mid-pipe, muffler, and tailpipe — with larger-diameter, mandrel-bent tubing and a freer-flowing muffler. Because it lives behind the cats, a cat-back is 50-state emissions-legal and needs no tune or CARB exemption number. On the 2021-2023 F-150 the factory exhaust is heavy, restrictive, and deliberately quiet; a cat-back is what finally lets the Coyote V8 bark and gives the EcoBoost its turbo-spool growl.

Be realistic about power. On a bone-stock F-150, a cat-back alone typically frees up only a handful of horsepower and a little torque — think single digits at the wheels, not a transformation. The real wins are sound, roughly 10 to 20 pounds of weight removed from behind the axle, and the breathing headroom that pairs with a tune, intake, or downpipe later. If a shop promises you 30 wheel horsepower from a muffler swap, walk away.

How to Choose: Material, Diameter, and Drone

Three decisions make or break a cat-back on a daily-driven F-150, especially here in the Southeast where humidity and road salt on winter road trips go to work on cheap tubing.

Material: Aluminized vs 409 vs 304 Stainless

Aluminized steel is the budget material — it flows identically but will surface-rust over several years of salt exposure. 409 stainless (what aFe uses on the Apollo GT) resists corrosion well and develops a light patina. T304 stainless is the premium tier: it stays bright, shrugs off salt, and is what you want if the truck lives outside or you keep it long-term. You pay for the metal, not the flow — all three sound nearly identical on day one.

Pipe Diameter: Is 3in or 4in Better?

For a naturally aspirated 5.0L or a stock-to-lightly-tuned EcoBoost, a 3in cat-back is the sweet spot — it maximizes sound and scavenging without hurting low-end response. A 4in system (like MBRP’s Race pipe) is louder and looks aggressive out back, and it makes the most sense on a tuned EcoBoost moving real airflow. On a stock truck, 4in buys you volume and presence more than power.

Sound and Drone: EcoBoost vs 5.0L vs PowerBoost

The 5.0L Coyote rewards you with a genuine V8 tone; the 2.7L and 3.5L EcoBoost stay more subdued because the turbos act as mufflers, so EcoBoost owners usually want the more aggressive kits to be heard. Highway drone — that cabin boom at 70 mph — is the one thing to plan around. Single-side and sound-cancellation designs (CORSA’s RSC) are the quietest cruisers; straight-through 4in race pipes are the loudest. The 3.5L PowerBoost hybrid uses a unique exhaust layout and needs a kit built specifically for it — a standard F-150 cat-back will not bolt up.

The Best Cat-Back Exhausts for the 2021-2023 Ford F-150

Every system below is in stock at NLP Performance and confirmed to fit the 14th-generation F-150. Prices update live on this page, so what you see is current.

This is the pick we hand most F-150 owners who want a noticeably deeper tone without overthinking it. The 3in mandrel-bent tubing and single-side exit keep the install simple (it clamps to the factory hanger locations), the sound is a clean, deep note that stays civil at cruise, and at under $600 it leaves budget for an intake or tune. The only trade-off is the aluminized finish, which will patina over years of salt — a fair compromise at this price.

If you want your F-150 heard before it is seen, this is the kit. The 4in tubing and straight-through race muffler are the loudest setup here, with a big-diameter tip that fills the rear bumper cutout. It is the natural match for a tuned 3.5L EcoBoost moving serious airflow. The flip side: expect noticeable cabin drone on the highway, so this is a truck-guy’s choice rather than a quiet-commuter pick.

The 3.5L PowerBoost hybrid is the odd one out — its exhaust routing differs from a standard F-150, so a normal cat-back will not fit. MBRP builds this single-side system specifically for the PowerBoost, and it steps up to premium T304 stainless so it stays bright for the life of the truck. It is the right (and essentially the only) performance cat-back answer for hybrid owners who still want a real exhaust note.

aFe’s Apollo GT is the step up in build quality without the step up to four-figure money. The 3in mandrel-bent 409 stainless resists corrosion far better than aluminized, the polished tips look factory-plus, and the tone sits between the mild MBRP single-side and the shouty 4in race pipe. Note the fitment: aFe lists this kit for 2021-2022 F-150s (all cabs, including Raptor and Tremor), so 2023 owners should go with one of the MBRP options above. With the instant discount it lands under $900, which is strong for a stainless, show-quality system.

2021-2023 F-150 Cat-Back Comparison

Here is how the in-stock systems stack up, including two premium 304 stainless step-ups from CORSA and Borla for buyers who want the quietest cruise or the most refined build. Tap any name or price to shop that exact kit.

The premium 304 kits run from roughly $1,000 to $1,550, and they earn it with corrosion resistance and refinement — CORSA’s RSC technology is the one to beat for a drone-free highway cruise, while Borla’s ATAK is the loudest of the stainless bunch. For most owners, though, the sub-$700 MBRP and aFe systems deliver 90% of the experience for far less money.

Installation: What to Expect

A cat-back on the 2021-2023 F-150 is a driveway-friendly, one-to-two-hour job with hand tools. Every kit here is a direct bolt-on that reuses the factory hangers and clamps to the existing mid-pipe flange — no cutting or welding on the standard systems. Let the truck cool, spray the factory clamps with penetrating oil, support the system on a jack or a second set of hands, and snug the band clamps once everything is aligned so the tips sit square in the bumper. No tune or re-flash is required, and because nothing forward of the cats is touched, your emissions equipment and factory warranty on the powertrain stay intact.