Exhaust› Mufflers and Resonators
Flowmaster
50 Series Big Block Chambered Muffler 50 Big Block 3.00 Dual In 2.50 Dual Out Mild Sound Flowmaster
SKU: F00L 530504
Moderate — 2–4 hours
Description
Part #: 530504
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.Improved Horsepower, Torque and Engine EfficiencyRecommended for SUV/trucks/motorhomes/tow vehiclesMinimal interior resonanceMild to stock exterior exhaust tone
Features:
- Durable Fully Welded 16ga Aluminized Steel
- Improved Horsepower, Torque and Engine Efficiency
- 3 Year Limited Warranty
- Recommended for SUV/trucks/motorhomes/tow vehicles
- Stock to Mild Exterior Exhaust Tone
- Minimal interior resonance
- Reduced Interior Resonance
- Mild to stock exterior exhaust tone
- Recommended For SUV/Trucks/Motorhomes/Tow Vehicles
- Improved HP/TQ and Potential Mileage Improvement
- Race Proven Patented Delta Flow (R) Technology
- Premium Flowmaster Quality
50 Series (TM) Big Block Muffler | 3.0 in. Dual Inlet/2.5 in. Dual Outlet | Case Dimensions 5 in. x 12 in. x 22 in. | 28 in. Overall Length | Aluminized Steel
MIA's Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Flowmaster |
| Part Number | F00L 530504 |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy