853072 - Workhorse 8.1L Performance Muffler
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Verified to have been manufactured in the USA
Part # 853072 - Workhorse 8.1L Performance Muffler
This is a replacement muffler for the Workhorse W-Series muffler, minus the factory flanges and hangers which should be reused. These mufflers also flow much more than the factory mufflers so you will want to install them as a set. These mufflers have proven to increase performance and extract exhaust heat from the engine. These gains are also achieved while still retaining the factory mellow sound. We have seen on average a 10-15 horsepower increase with these mufflers installed when tested on the chassis dyno.
A popular choice for most customers is to install these mufflers along with a set of LongTube headers. This will give you the performance that the headers provide and still leave you with true dual exhaust all the way back, without leaving the restrictive factory mufflers in place. With this combination we see about 30 horsepower and 40 ft. lbs. torque increase.
Applications:
- Workhorse Motor Home Chassis from 2001-2010
Technical Details:
| Outlet Diameter (in) | 3" | Outlet Position | Offset |
|---|---|---|---|
| Overall Length (in) | 28" | Outlet Connection Type | Pipe Connection |
| Muffler Type | Reflection | Muffler Series | RV Big Block |
| Mount Type | Uses New Hangers (Not Included) | Material | Stainless Steel |
| Inlet Position | Center | Inlet Diameter (in) | 3" |
| Inlet Connection Type | Pipe Connection | Fitment | Universal |
| Color | Gray | Body Width (in) | 10" |
| Body Length (in) | 22" | Body Diameter (in) | 5" |
| Automotive Item Grade | High Performance | Body Height (in) | 5" |
| Sound Level | Mild Sound | Shape | Oval |
Benefits:
- Gains of 10-15 HP and 15-20 lb-ft TQ
- Downshifts less approaching hills
The state of California requires that this warning be posted for people purchasing products that reside in California.
WARNING: Products may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov
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