FITMENT
- Engineered as a high-performance upgrade for any aftermarket 4" exhaust system.
- Fits perfectly with custom or aftermarket exhaust setups on Ford Powerstroke, Chevy/GMC Duramax, and Dodge Ram Cummins diesel trucks.
- If you are retrofitting this onto a smaller factory OEM exhaust pipe, standard exhaust reducer adapters and custom fabrication will be required.
DESCRIPTION
Product Overview
- Upgrading your diesel truck to a 4-inch exhaust lowers towing EGTs and improves turbo response, but straight-pipe setups create loud highway cabin drone. Traditional chambered mufflers cut noise, but they restrict airflow and trap heat.
- The 4" Inlet/Outlet 30" Overall Performance Diesel Muffler offers a high-flow, quiet solution. Its extended 20-inch stainless steel body features a straight-through core packed with high-temperature insulation to eliminate cabin drone, lower backpressure, keep EGTs safe, and deliver a deep exhaust tone.
Key Features
- Heavy-Duty Stainless Steel Build: Constructed from heavy-gauge stainless steel with reinforced end caps to handle severe exhaust heat and winter road salt corrosion.
- Lowers Towing EGTs: Unrestricted inner core allows hot exhaust gases to exit rapidly, keeping Exhaust Gas Temperatures cool under heavy towing loads.
- Straight-Through High-Flow Design: Features a 4-inch perforated straight-through inner core that maintains maximum exhaust gas velocity without power-robbing backpressure.
- Extra-Length Drone Elimination: Extended 30-inch overall length provides extra dampening volume to eliminate harsh cabin drone during highway cruising and heavy towing.
FAQ
Q: Why choose a 30" overall length muffler instead of a shorter 20" overall length muffler?
A: The extra 10 inches of body length provides substantially more sound-dampening volume. If your truck suffers from severe highway cab drone or if you frequently tow long distances, the 30" overall length version offers superior sound suppression.
Q: Will this straight-through 4" muffler restrict exhaust flow or raise EGTs?
A: No. The muffler uses a perforated 4-inch straight-through core with no internal baffles or restrictive chambers, ensuring maximum exhaust velocity and low towing EGTs.
Q: Will this 30" muffler fit under short-bed and crew-cab diesel trucks?
A: Yes. The 30-inch overall fits comfortably within the mid-chassis exhaust tunnel on short-bed, long-bed, and extended-cab trucks without interfering with driveshafts or fuel tanks.
Q: Is the fiberglass packing inside resistant to high exhaust temperatures from towing?
A: Yes. The internal perforated core is wrapped with high-density, heat-resistant sound insulation rated for continuous temperatures over 1,200°F without burning out or blowing out.
