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Installation Instructions
Flowmaster 2.5 IN(O)/OUT(O) 70 Series BBII Muffler
SKU: FLO52573
Sale price
$249.95 USD
Regular price
$281.95 USD
Shipping calculated at checkout.
The 70 series utilizes Flowmaster's Delta Flow® technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUV's, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
WarrantyInstallation Instructions
- Recommended for SUV/trucks/motorhomes/tow vehicles
- Improved Horsepower, Torque and Engine Efficiency
- Mild to stock exterior exhaust tone
- Minimal interior resonance
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1978-1980 | Chevrolet | C10 | Big Ten |
| 1975-1980 | Chevrolet | C10 | Cheyenne |
| 1975-1980 | Chevrolet | C10 | Custom Deluxe |
| 1975-1980 | Chevrolet | C10 | Scottsdale |
| 1975-1977,1979-1980 | Chevrolet | C10 | Silverado |
| 1973-1974 | Chevrolet | C10 Suburban | Base |
| 1981-1986 | Chevrolet | C10 Suburban | Custom |
| 1975-1980 | Chevrolet | C10 Suburban | Custom Deluxe |
| 1981 | Chevrolet | C10 Suburban | Deluxe |
| 1975-1980,1982,1984-1986 | Chevrolet | C10 Suburban | Scottsdale |
| 1975-1977,1979-1980,1982-1986 | Chevrolet | C10 Suburban | Silverado |
| 1988,1990-1993 | Chevrolet | C1500 | Cheyenne |
| 1988-1990 | Chevrolet | C1500 | Scottsdale |
| 1988-1993 | Chevrolet | C1500 | Silverado |
| 1990-1991,1993 | Chevrolet | C1500 | WT |
| 1975-1980 | Chevrolet | C20 | Cheyenne |
| 1975-1980 | Chevrolet | C20 | Custom Deluxe |
| 1975-1980 | Chevrolet | C20 | Scottsdale |
| 1975-1977,1979-1980 | Chevrolet | C20 | Silverado |
| 1975-1980 | Chevrolet | C30 | Cheyenne |
| 1975-1980 | Chevrolet | C30 | Custom Deluxe |
| 1975-1980 | Chevrolet | C30 | Scottsdale |
| 1975-1977,1979-1980 | Chevrolet | C30 | Silverado |
| 1970-1972 | Chevrolet | Chevelle | Base |
| 1969-1972 | Chevrolet | Chevelle | Concours Estate |
| 1969-1972 | Chevrolet | Chevelle | Greenbrier |
| 1965-1972 | Chevrolet | El Camino | Base |
| 1968-1972 | Chevrolet | El Camino | Custom |
| 1971-1972 | Chevrolet | El Camino | SS |
| 1975-1980 | Chevrolet | K10 | Cheyenne |
| 1975-1980 | Chevrolet | K10 | Custom Deluxe |
| 1975-1980 | Chevrolet | K10 | Scottsdale |
| 1975-1977,1979-1980 | Chevrolet | K10 | Silverado |
| 1973-1974 | Chevrolet | K10 Suburban | Base |
| 1981-1986 | Chevrolet | K10 Suburban | Custom |
| 1975-1980 | Chevrolet | K10 Suburban | Custom Deluxe |
| 1981 | Chevrolet | K10 Suburban | Deluxe |
| 1975-1980,1982,1984-1986 | Chevrolet | K10 Suburban | Scottsdale |
| 1975-1977,1979-1980,1982-1983,1985-1986 | Chevrolet | K10 Suburban | Silverado |
| 1988-1993 | Chevrolet | K1500 | Cheyenne |
| 1988-1990 | Chevrolet | K1500 | Scottsdale |
| 1988-1993 | Chevrolet | K1500 | Silverado |
| 1991 | Chevrolet | K1500 | Sport |
| 1990-1993 | Chevrolet | K1500 | WT |
| 1975-1980 | Chevrolet | K20 | Cheyenne |
| 1975-1980 | Chevrolet | K20 | Custom Deluxe |
| 1975-1980 | Chevrolet | K20 | Scottsdale |
| 1975-1977,1979-1980 | Chevrolet | K20 | Silverado |
| 1977-1980 | Chevrolet | K30 | Cheyenne |
| 1977-1980 | Chevrolet | K30 | Custom Deluxe |
| 1977-1980 | Chevrolet | K30 | Scottsdale |
| 1977,1979-1980 | Chevrolet | K30 | Silverado |
| 1982-1986 | Chevrolet | K5 Blazer | Custom |
| 1984 | Chevrolet | K5 Blazer | Scottsdale |
| 1982-1986 | Chevrolet | K5 Blazer | Silverado |
| 1970-1972 | Chevrolet | Monte Carlo | Base |
| 1991-1992 | Dodge | D350 | Base |
| 1997-2003 | Dodge | Dakota | Base |
| 2009-2010 | Dodge | Dakota | Big Horn |
| 2005-2010 | Dodge | Dakota | Laramie |
| 2009-2010 | Dodge | Dakota | Lone Star |
| 1998-1999 | Dodge | Dakota | R/T |
| 1997-2008 | Dodge | Dakota | SLT |
| 2004 | Dodge | Dakota | SLT Plus |
| 1997-2005,2008 | Dodge | Dakota | Sport |
| 2004 | Dodge | Dakota | Sport Plus |
| 2005-2010 | Dodge | Dakota | ST |
| 2002,2008 | Dodge | Dakota | SXT |
| 2008 | Dodge | Dakota | TRX |
| 2008-2010 | Dodge | Dakota | TRX4 |
| 1997-2002 | Ford | Expedition | Eddie Bauer |
| 1997-2002 | Ford | Expedition | XLT |
| 1998-2000 | Ford | F-150 | Base |
| 2007-2008 | Ford | F-150 | FX2 |
| 2004-2008 | Ford | F-150 | FX4 |
| 2000 | Ford | F-150 | Harley-Davidson Edition |
| 2001-2003,2005-2008 | Ford | F-150 | King Ranch |
| 1998-2008 | Ford | F-150 | Lariat |
| 2008 | Ford | F-150 | Limited |
| 2004-2008 | Ford | F-150 | STX |
| 1998-2008 | Ford | F-150 | XL |
| 1998-2008 | Ford | F-150 | XLT |
| 2004 | Ford | F-150 Heritage | XL |
| 2004 | Ford | F-150 Heritage | XLT |
| 1979-1980 | GMC | C1500 | Base |
| 1979-1980 | GMC | C1500 | Heavy Half |
| 1979-1980 | GMC | C1500 | High Sierra |
| 1990-1993 | GMC | C1500 | Sierra |
| 1979-1980 | GMC | C1500 | Sierra Classic |
| 1979-1980 | GMC | C1500 | Sierra Grande |
| 1990-1993 | GMC | C1500 | Sierra SLE |
| 1990-1993 | GMC | C1500 | Sierra SLX |
| 1979-1980 | GMC | C1500 | Street Coupe |
| 1979-1980 | GMC | C2500 | Base |
| 1979-1980 | GMC | C2500 | High Sierra |
| 1979-1980 | GMC | C2500 | Sierra Classic |
| 1979-1980 | GMC | C2500 | Sierra Grande |
| 1979-1980 | GMC | C3500 | Base |
| 1979-1980 | GMC | C3500 | High Sierra |
| 1979-1980 | GMC | C3500 | Sierra Classic |
| 1979-1980 | GMC | C3500 | Sierra Grande |
| 1982-1986 | GMC | Jimmy | Base |
| 1982-1985 | GMC | Jimmy | High Sierra |
| 1982-1985 | GMC | Jimmy | Sierra Classic |
| 1982 | GMC | Jimmy | Sierra Grande |
| 1979-1980 | GMC | K1500 | Base |
| 1979-1980 | GMC | K1500 | High Sierra |
| 1988-1993 | GMC | K1500 | Sierra |
| 1979-1980 | GMC | K1500 | Sierra Classic |
| 1979-1980 | GMC | K1500 | Sierra Grande |
| 1988-1993 | GMC | K1500 | Sierra SLE |
| 1988-1993 | GMC | K1500 | Sierra SLX |
| 1979-1980 | GMC | K2500 | Base |
| 1979-1980 | GMC | K2500 | High Sierra |
| 1979-1980 | GMC | K2500 | Sierra Classic |
| 1979-1980 | GMC | K2500 | Sierra Grande |
| 1979-1980 | GMC | K3500 | Base |
| 1979-1980 | GMC | K3500 | High Sierra |
| 1979-1980 | GMC | K3500 | Sierra Classic |
| 1979-1980 | GMC | K3500 | Sierra Grande |
| 1998-2002 | Lincoln | Navigator | Base |
| 1964-1972 | Pontiac | GTO | Base |
| 1970-1971 | Pontiac | GTO | The Judge |
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