Unleash the hidden horsepower, torque and throttle response that's simmering under your hood. JBA Headers are mandrel-bent for maximum flow and smog-legal in all 50 states. Firecone collector for greater output. Dyno proven 10-25hp gains. 1-year warranty.
Power up your ride with BBK Performance Exhaust Headers. Tuned for power and built for durability, BBK crafts both shorty headers and long tube headers. And, for explosive power you can count on, BBK performance headers are pressure-tested for leak-free service. 1-year warranty.
Dollar for dollar, few performance upgrades can match a set of Doug Thorley Headers. Tuned for power and smog compliance, Thorley exhaust headers come in Tri-Y, shorty and long tube header designs. Mild steel with a ceramic or nickel coating. Plus, Thorley exhaust headers carry a Lifetime Warranty.
Toss those rusty, restrictive, stock parts and increase performance and engine life with Gibson's custom headers. Enthusiasts and industry experts alike all agree that Gibson headers are the most cost-effective performance exhaust headers on the market. Lifetime Warranty.
Manifold shmanifold—swap that factory iron for some gnarly power & sound with Stainless Works Headers. Crafted from T304 stainless steel and tuned specifically for your engine, these exhaust headers deliver free-flowing horsepower, torque and throttle response. Limited Lifetime Warranty.
Go hog wild for horsepower by bolting on a handmade set of Kooks Street Headers. Expertly engineered to unleash insane amounts of power, these custom exhaust headers are constructed from premium steel with a 3/8” flange and hand-ground ports. Lifetime Warranty.
Quality off-road long-tube headers at an affordable price—impossible? Not any more—go for PaceSetter’s Quik-Trip Long Tube Headers. These bad boys deliver roaring horsepower and torque, they seal tight, are made in the USA and carry a 3-year warranty.
Clear away the restrictions in your exhaust system and crank up your driving excitement with Flowmaster Scavenger Series Elite Headers. Each custom-designed exhaust header boasts ceramic-coated stainless steel construction, fat 3/8" flanges and 1 5/8" primary tubes. 1-year warranty.
Banks TorqueTube Exhaust Headers don’t just improve exhaust flow—they actually scavenge the spent fumes out of your motor. Banks’ stainless steel headers free up loads of gut-wrenching torque. Dead-flat flanges and clean welds prevent leaks. Lifetime Warranty.
Making your truck or SUV gallop ahead of the team is what smog-legal PaceSetter Shorty Headers are all about. Specialized engineering, quality steel and durable coatings help PaceSetter performance headers bring power, efficiency and sound. PaceSetter exhaust headers carry a 3-year warranty.
Open the performance floodgates with custom-designed aFe Twisted Steel Headers. These dyno-tested exhaust headers use optimized stainless steel tubes and mitered collectors to cut turbulence and speed up exhaust flow for hair-raising power gains. Gasket included. Lifetime Warranty.
Not sure which 2004 GMC Sierra Exhaust Headers & Manifolds are right for you? We have over 918 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"THESE BBK HEADERS ARE A QUALITY PRODUCT. THE CERAMIC COATING IS AN EXCELLENT FINISH AND LOOKS GREAT. PERFORMANCE WISE, THEY HAVE INCREASED TORQUE AND OVERALL HP. I'M PLEASED WITH THESE AREAS, BUT I WASN'T PLEASED WITH THE FACT THAT THE HEADERS DIDN'T/DON'T COME WITH A HARDWARE KIT.I WAS UNABLE TO REMOVE STOCK MANIFOLD FLANGE STUDS, COST 30.00 TO GET NEW ONES TO FINISH INSTALL." —Dennis B from Mount Gilead, NC bought a BBK Performance Exhaust Headers for a 2004 GMC Sierra, 4.8L V8.