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A-1Performance
6823 Fulton St.
Houston, TX 77022
Toll Free USA
888-996-0303
Outside USA
713-722-9200
Fax: 713-722-9219
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Flowmaster 50 Series Big Block Mufflers
 The 50 Series Big Block muffler is made for more than just big cubic inch engine applications. Its large case size with internal tuning chamber provides mileage and power gains along with maximum sound control for a quiet interior tone, even under heavy loads. Well suited to heavy duty vehicles such as full size trucks, SUV's, RVs, and tow vehicles. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Application Recommendations: - Mild to stock exterior exhaust tone
- Minimal interior resonance
- Recommended for SUV/trucks/motorhomes/tow vehicles
- Improved horsepower, torque and potential mileage improvement
- Made in the USA
- Premium Flowmaster quality
50 SERIES BIG BLOCK
28.00" OAL X 22.00" CASE X 12.00" WIDE X 5.00" THICK | | 
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| | | In | Out | Part
Number | | 3.50" | 3.50" | 53550 | | | | | | | | | | | In | Out | Part
Number | | 3.50" | 3.50" | 53551 | | | | | | | | | | | In | Out | Part
Number | | 3.50" | 3.50" | 53553 | | | | | | | | | |
| 50 SERIES BIG BLOCK
28.00" OAL X 22.00" CASE X 12.00" WIDE X 5.00" THICK | | 
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| | | | In
| Out
| Part
Number | | 3.00" | 3.50" | 530513 |
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