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★★★★★ 4.8 / 5
from 10,000+ verified diesel owners
4"Inlet 6"Outlet 12"Overall Length Bolt On Exhaust Tailpipe Tip Black
$177.98
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Ships today from our nearest US warehouse.
Backed by our 100% money-back
FITMENT
- Inlet Diameter: 4" ID (Internal Diameter) - Slips over 4" OD pipe;Outlet Diameter: 6" OD (Outer Diameter);Overall Length: 12".
- Slips directly over any truck or SUV equipped with a 4-inch outer diameter (4" OD) aftermarket or factory exhaust tailpipe.
- Perfect for upgraded Ford Powerstroke, Chevy GMC Duramax, and Dodge Ram diesel trucks running aftermarket 4" exhaust systems.
DESCRIPTION
Product Overview
-
While upgrading to a 4" exhaust system significantly drops EGTs and increases flow, the standard 4" tailpipe can still look small and unfinished under large, lifted heavy-duty trucks.
- This 4-to-6 inch polished exhaust tip provides the ultimate finishing touch. Acting like a massive natural megaphone, it amplifies your diesel’s exhaust notes into a much deeper, authoritative rumble while giving your truck a aggressive, heavy-duty rear profile.
Key Features
- High-Temp Black Finish: Coated in a premium, heat-resistant black finish that resists chipping, peeling, and road salt corrosion while effortlessly masking ugly diesel soot.
- Aggressive 6" Megaphone Blast: Converts your 4" tailpipe into a massive 6" flared opening, naturally deepening your exhaust note for a throatier, deeper tone.
- Sleek Slant-Cut &Rolled Edge: Features an angled slant-cut profile to seamlessly align with your truck's quarter panel and a thick rolled edge for a muscular, premium look.
- Integrated Drainage Hole: Engineered with a discreet bottom weep hole to quickly drain trapped water, preventing internal moisture buildup and rust.
FAQ
Q: How do I clean and maintain the black finish?
A: The black coating is great at hiding black diesel soot. Simply rinse it with clean soap and water when washing your truck. Avoid using harsh steel wool or abrasive chrome polishes.
Q: Will jumping from a 4" pipe to a 6" tip affect my engine's backpressure?
A: No. The tip is located at the very end of your exhaust system. Expanding the tip only alters the acoustics (sound depth) and aesthetics;it has zero impact on engine backpressure or turbo performance.
Q: What is the main difference between the 4-6-12" and 4-6-15" versions?
A: The difference is purely visual and fitment-based. Both feature a 4" inlet and a 6" outlet. The 15" version provides an extra 3" of length, allowing it to extend further past the bedside or tuck deeper under the truck to hide the transition from the smaller 4" pipe.
Q: Can I install these 4-to-6 inch tips on a dual-exit exhaust system?
A: Yes, but check the spacing. If your truck has a dual exhaust setup (one on each side), running dual 6-inch tips creates an incredibly aggressive look. Just ensure the distance between your twin tailpipes and the bumper allows enough room for two wide 6-inch outlets without them touching.
Built by diesel guysTrusted by diesel guys
Derek W.
Verified buyerRunning between three rig sites every week, was burning through DEF in about 2 weeks. Getting 6 weeks per jug now. Regen lockouts used to cost me half a day in the field, that's done with.
Chris D.
Verified buyerGot four trucks on the ranch, did this one first to see how it'd go. Eight months in, no codes, pulls hay like she's new again. Other three are getting done before winter.
Travis M.
Verified buyerTowing the boat down to the Keys used to kill me at 11 mpg. Got 15.4 last trip, same boat, same route. Pipe looks stock from the outside, none of my buddies even noticed it's gone.
Mike R.
Verified buyerHauled my horses from Fort Worth up to Amarillo last month, got 17.8 empty on the way back. Was running around 13 before. Pulls a lot better up the grades too, didn't expect that part.
Jason T.
Verified buyerUsed to go into regen every 280 miles when I was loaded down, now I'm pushing 580 with no regen at all. EGTs run way cooler too pulling the skid steer. Wish I had done this sooner, honestly.
Brandon L.
Verified buyerBought it used and the previous guy had wiped the delete history clean. Got everything put back the right way, ran the protocol, passed smog first try. Truck finally drives like it should.
Trusted by 10,000+ american diesel owners
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Reversible install
Fitment guaranteed or refundGot questions?
The stuff that keeps you up at night before you commit. Answered in plain talk by guys who actually wrench on these trucks.
A full mandrel-bent stainless DPF and CAT delete pipe, EGR block-off plates and gaskets, DEF delete components, all mounting hardware and clamps, and your preloaded tuner with the custom tune for your VIN. We don't ship anything you don't need, and we don't leave anything out that you do.
No. The custom tune disables the codes the deleted hardware would otherwise throw. Dash stays clean. If a real fault code pops up after install, call our line and a tech walks you through it. Usually it's a sensor that got unplugged during the wrench work, takes 5 minutes to sort out.
We pull your VIN before we ship. Engine, year, trim, cab config, all verified against the kit. If it doesn't fit your truck, you send it back and we either ship the right kit or refund you in full. Fitment is on us, not you. That's why we call it a fitment guarantee.
Most of our customers do. Average install is 2 to 4 hours with basic hand tools, sockets, ratchet, jack stands. You'll get the step-by-step install video emailed after purchase and a 24/7 phone line if you get stuck. If you can change your own oil, you can run our protocol.
Real custom files. Built in-house by guys who've been turning wrenches and writing tunes on Cummins, Duramax, and Powerstroke platforms for years. Every tune is dialed to your year, your engine, and how you actually drive the truck. No outsourced generic tunes pulled off a shared drive.
Once we've got the base files for your platform, dialing it in for your specific truck takes about 20 minutes. Charging $300 for that didn't sit right with us. We'd rather give you the better experience and earn the call when your buddy's truck needs help.
You call us. Real diesel techs, US-based, picking up the phone. We help with install troubleshooting, tune adjustments, fitment issues, codes, anything. We don't disappear after the sale, and the line doesn't go to voicemail. Phone number is at the bottom of every email and on every page of this site.
Yes. The custom tune is reversible, flash the stock file back through your tuner and the truck reads as factory again. The only thing that's permanent is the deleted hardware itself, but most buyers in the diesel community see a properly executed delete as a value-add, not a deduction. We can also ship the OEM-style reverse plates if you want to put the factory exhaust back on for resale.
Lifetime warranty on the stainless delete pipe, no rust-through, no cracks, ever. 2-year warranty on the EGR delete plates, gaskets, and hardware. If anything fails, we ship a replacement same day. The tuner itself carries the manufacturer warranty through EZ Lynk or HP Tuners.
Orders ship from Fort Worth within 1 to 2 business days. Free express shipping anywhere in the lower 48. Most orders land in 3 to 5 days. You'll get tracking the second it leaves the shop.
