Next Level Performance
July 4, 2026 • 10 min read
The best headers and exhaust for the 2011-2018 Ford F-250/F-350 6.2L Super Duty wake up Ford's 385-horsepower "Boss" V8 by clearing the two biggest restrictions in the factory system: the log-style exhaust manifolds and the pinched, single 2.5in tailpipe. The naturally aspirated 6.2L (379 cubic inches, 9.8:1 compression, SOHC 2-valve) makes 385 hp and 405 lb-ft of torque on 2011-2016 trucks and 385 hp with 430 lb-ft on 2017-up trucks — but it is engineered to be conservative from the factory. Open up the exhaust with long-tube headers and a mandrel-bent cat-back and this big gas V8 breathes, sounds, and pulls the way it should. At NLP Performance in Tampa, FL, this platform is one of our most-shopped gas Super Duty builds, so we put together this buyer's guide to the six header and exhaust kits worth your money.
Our Verdict
The Stainless Works 1-7/8in long-tube headers with high-flow cats are the single biggest power upgrade for the 6.2L Boss V8 — nothing else on this list moves the dyno needle more.
If you only change one thing, change the manifolds. Long-tube headers unlock exhaust scavenging the factory logs cannot, and paired with a tune they are worth roughly 25-35 hp on a naturally aspirated V8. For sound-and-value builds, the MagnaFlow Street Series cat-back at $979.20 is the smartest first step. Want the deepest tone with no highway drone? The Borla S-Type is the pick.
Shop Our Top Pick →Why the 6.2L Boss V8 Responds to Headers and Exhaust
The 6.2L Boss V8 responds well to exhaust upgrades because it is a large-displacement, naturally aspirated engine choked by restrictive factory plumbing. Introduced in 2011 to replace the 5.4L Triton V8 and 6.8L V10, the Boss is a 90-degree, cast-iron-block V8 with aluminum heads, a 4.02in bore, a 3.74in stroke, and a 9.8:1 compression ratio. It produces 385 hp at 5,500 rpm across the entire 2011-2018 run; torque is 405 lb-ft at 4,500 rpm on 2011-2016 trucks and climbs to 430 lb-ft on 2017-up trucks thanks to revised camshafts and tuning.
From the factory, each cylinder head dumps into a cast log manifold, then the truck runs a single, small-diameter pipe to a single muffler. That layout kills exhaust velocity and traps heat and spent gases in the cylinders. Long-tube headers replace the logs with equal-length 1-7/8in primary tubes that use pulse scavenging to pull exhaust out of the chamber, while a 3in or 3.5in mandrel-bent cat-back removes the downstream restriction. A cat-back alone is mostly sound and a few horsepower; long-tube headers with a supporting tune are where the real gains — typically 10-15 hp untuned and 25-35 hp tuned on a naturally aspirated V8 — come from.
Equal-length 1-7/8in primaries replace the factory cast log manifolds on the 6.2L Boss V8.
Best Headers and Exhaust for the 2011-2018 F-250/F-350 6.2L at a Glance
Here is how the six 6.2L Super Duty exhaust kits we stock compare on type, fitment, construction, and price. All prices are current at NLP Performance. Note that select 304 stainless kits carry a CARB restriction and cannot ship to California.
| Kit | Type | Fitment | Construction | Price |
|---|---|---|---|---|
| Stainless Works Long-Tube HeadersTop Pick | Long-tube headers + cats | 2011-2018 CC/SC | 304SS, 1-7/8in / 3in | $2,562.07 |
| Stainless Works Factory Connect Cat-Back | 3in true dual, X-pipe | 2011-2016 | 304SS, dual 4in tips | $2,385.07 |
| Borla S-Type Cat-Back | Side-exit cat-back | 2017-2019 | T-304SS, 5in tip | $1,674.99 |
| MagnaFlow Street Series Cat-Back | Single side exit | 2017-2018 | SS, 3.5in, 5in tip | $979.20 |
| MagnaFlow Street Series Cat-Back | Single rear exit | 2011-2015 | SS, 3.5in, 5in tip | $905.40 |
| MagnaFlow Off-Road Pro Series | Off-road cat-back | 2011-2016 | SS, 3.5in, tuck-up | $709.20 |
1. Stainless Works Long-Tube Headers — Best Overall Power Upgrade
The Stainless Works 11-18 F-250/F-350 6.2L header kit is the best overall power upgrade for the Boss V8 because it attacks the factory system's worst restriction: the cast log manifolds. These mandrel-bent, TIG-welded 304 stainless headers use 1-7/8in primaries, port-matched flanges, an integrated merge spike, and 3in slip-fit collectors with high-flow catalytic converters. They fit 2011-2018 Crew Cab and SuperCab trucks and bolt directly to the Stainless Works Factory Connect cat-back or your stock exhaust.
Key Specifications
What We Like
- + Largest power and torque gain of any bolt-on for the 6.2L
- + Included high-flow cats keep it street-oriented and quieter than off-road pipes
- + 304 stainless, TIG-welded, port-matched flanges for a factory-quality fit
Things to Consider
- – Cannot ship to California due to CARB regulations
- – Highest price on this list and best paired with a custom tune for full gains
2. Stainless Works Factory Connect Cat-Back — Best Matched System
The Stainless Works Factory Connect cat-back is the best complement to the header kit because it is engineered to bolt straight to those collectors — or to your stock manifolds. It is a full 304 stainless, 3in true-dual system with an X-pipe, dual straight-through mufflers, and dual 4in polished tips that exit in the factory location. The 2011-2016 version (part sswFT2CB) is $2,385.07; the 2017-2018 version (part sswFT217CB) is $2,031.07. Pair it with the headers and you have a matched, mandrel-bent path from the head to the tip.
Dual 4in polished tips exit in the factory location, so no bumper cutting is required.
3. Borla S-Type Cat-Back — Best Sound Without Drone
The Borla S-Type is the pick for the deepest, most aggressive tone without cabin drone. Borla designs the S-Type muffler specifically to give the 6.2L its enthusiast growl while engineering out the resonance frequency that causes highway drone. This 2017-2019 F-250/F-350 Super Duty system uses CNC-formed pipes for maximum flow and a side-exit layout with a 5in tip, built entirely from patented T-304 stainless steel and backed by Borla's million-mile warranty. It is a gas-only system.
What We Like
- + Aggressive tone engineered without highway drone
- + Patented T-304 stainless with a million-mile warranty
- + CNC-formed pipes and bold 5in side-exit tip
Things to Consider
- – Fits 2017-2019 trucks only, not the earlier 2011-2016 body
- – Side exit is a styling choice that not every owner wants
4. MagnaFlow Street Series Cat-Back — Best Value
The MagnaFlow Street Series cat-back is the best value on this list and the smartest first mod for most owners. At $979.20, the 2017-2018 kit (part 19351) delivers MagnaFlow's signature resonant, dyno-proven tone through 3.5in mandrel-bent main piping, a straight-through muffler, and a single passenger-side rear exit finished with a 5in polished, double-wall, angle-cut tip. Own an earlier truck? The 2011-2015 version (part 19174, $905.40) is in stock and delivers the same recipe. Both are the most budget-friendly stainless cat-backs we carry for the 6.2L.
MagnaFlow finishes the Street Series kit with a 5in polished, double-wall, angle-cut tip.
Woke my 6.2L right up. Deep tone at idle, quiet on the highway, and the fit was perfect at the factory hangers. Exactly the sound I wanted without the drone.
— Verified NLP Performance Buyer | ★★★★★
5. MagnaFlow Off-Road Pro Series — Best for Lifted and Off-Road Trucks
The MagnaFlow Off-Road Pro Series is the best choice for lifted and trail-driven 6.2L trucks. At $709.20, the 2011-2016 kit (part 17200) is a weight-optimized, dyno-tested stainless system engineered to hug the undercarriage for improved ground clearance — ideal after a leveling kit or lift. It delivers a very aggressive exterior note and an aggressive interior tone through 3.5in single passenger-side piping. It is the lowest-priced kit here and the go-to for owners who prioritize clearance and volume.
The 2011-2015 MagnaFlow Street Series (part 19174) brings the same recipe to earlier 6.2L trucks.
Headers vs Cat-Back: What Should You Buy First?
If maximum horsepower is the goal, buy long-tube headers first; if sound and value are the priority, start with a cat-back. A cat-back exhaust changes the tone dramatically and frees a few horsepower, but it leaves the restrictive factory manifolds in place. Long-tube headers are where the real power lives — a properly tuned 6.2L can pick up 25-35 hp — but they are the larger investment and require a supporting tune for the full return. The ideal build for a 2011-2016 truck is the Stainless Works headers feeding the Stainless Works Factory Connect cat-back, because the two systems are designed to bolt together into one matched, mandrel-bent path. On a tighter budget, run the MagnaFlow Street Series cat-back now and add headers later.
Installation, Tuning, and Emissions Notes
A cat-back on the 6.2L is a bolt-on job most weekend mechanics can finish in two to three hours with hand tools; every kit here uses the factory hanger locations and mounts, so no cutting is needed on the street systems. Long-tube headers are a more involved install — plan for a full day, penetrating oil for the factory manifold bolts, and fresh gaskets. To realize the full 25-35 hp from the headers, add a custom tune from a Super Duty specialist. On emissions: the Stainless Works headers and the 2017-2018 Factory Connect cat-back cannot be shipped to California due to CARB regulations, while the 49-state MagnaFlow Street Series and Borla cat-backs retain the catalytic converters and are street-legal in most states. Always confirm the rules for your state before ordering.
Frequently Asked Questions
How much horsepower do headers add to a 6.2L Ford Super Duty?
Long-tube headers typically add about 10-15 horsepower untuned and 25-35 horsepower with a supporting tune on a naturally aspirated V8 like the 6.2L Boss. The gains come from replacing the restrictive cast log manifolds with equal-length 1-7/8in primaries that improve exhaust scavenging. A cat-back exhaust by itself adds only a few horsepower but changes the tone significantly.
Are long-tube headers legal on a 2011-2018 F-250/F-350 6.2L?
Long-tube headers with high-flow catalytic converters are street-legal in most of the country, but the Stainless Works 6.2L header kit cannot be shipped to California because it lacks a CARB Executive Order. If you live in California or another CARB state, a 49-state cat-back such as the MagnaFlow Street Series that retains the factory catalytic converters is the compliant path. Always verify your local emissions rules before buying.
Do I need a tune after installing headers on the 6.2L Boss V8?
You do not strictly need a tune for the truck to run, but you need one to unlock the full 25-35 horsepower from long-tube headers. A custom tune optimizes fuel and spark for the improved airflow and cleans up any post-header driveability. A cat-back exhaust does not require a tune at all — it is a pure bolt-on.
What is the difference between the Stainless Works and MagnaFlow exhaust for the 6.2L?
The Stainless Works Factory Connect is a 304 stainless 3in true-dual system with an X-pipe and dual 4in tips, built to bolt directly to Stainless Works headers for a fully matched exhaust path. The MagnaFlow Street Series is a single 3.5in system with one straight-through muffler and a 5in side-exit tip at less than half the price. Choose Stainless Works for a header-matched dual build and MagnaFlow for the best value and easiest bolt-on.
Will a cat-back exhaust cause drone in the F-250 cab?
Quality straight-through cat-backs are designed to minimize drone, and the Borla S-Type in particular is engineered to remove the specific resonance frequency that causes highway drone in the 6.2L. Single-exit MagnaFlow Street Series kits are also tuned for a resonant but livable daily-driver tone. Straight-pipe or off-road systems without mufflers are the ones most likely to drone at cruising speed.
Does the 6.2L exhaust fit both Crew Cab and SuperCab trucks?
The Stainless Works header kit is designed for 2011-2018 F-250/F-350 6.2L trucks in Crew Cab and SuperCab configurations. Cat-back fitment depends on the specific kit and model year, so match the part number to your truck's year and cab. If you are unsure, contact NLP Performance in Tampa, FL with your year, cab, and bed length and we will confirm the correct fitment before you order.
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