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Flowmaster

Flowmaster 50 Series Big Block Chambered Muffler

Part # 527504 Be the first to write a review

50 Big Block - 2.75 Dual In / 2.50 Dual Out - Mild Sound

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Inlet Diameter

Outlet Inside Diameter

Inlet Location

Outlet Location

Flowmaster 50 Series Big Block Chambered Muffler

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Free Shipping - Lower 48 US States

Backordered

Est. Ship Date: 09/01/2026

$299.95
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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.

Features:

  • Improved Horsepower, Torque and Engine Efficiency
  • Recommended for SUV/trucks/motorhomes/tow vehicles
  • Minimal interior resonance
  • Mild to stock exterior exhaust tone
Body Height5.00 IN
Body Length22.00 IN
Body MaterialAluminized Steel
Body Width12.00 IN
Brand Flowmaster
California Proposition 65No
CategoryExhaust
Clamps IncludedNo
ColorBlack
Emission Code5
Exhaust Tip Quantity0
Sold Separately
FinishHigh-Temperature Paint
FitmentUniversal
Grade TypePerformance
Hanger IncludedNo
Heat Shield AttachedNo
Inlet ConnectionSlip-Fit
Inlet Diameter2.75 IN
Inlet Inside Diameter2.75 IN
Inlet LocationDual
Inlet Outside Diameter2.88 IN
Inlet Quantity2
Inlet TypeClamp-On
Weld-On
Mount TypeUses New Hangers (Not Included)
Muffler Series50 Series Big Block
Muffler TypeChambered
Outlet ConnectionSlip-Fit
Outlet Inside Diameter2.50 IN
Outlet LocationDual
Outlet Outside Diameter2.63 IN
Outlet Quantity2
Outlet TypeDual
Overall Length28.00 IN
part typeExhaust Muffler
Product TypeStreet Mufflers
ReversibleNo
ShapeOval
Sound LevelMild
Sub CategoryMufflers
TunableNo
Universal Or Specific FitUniversal
Vehicle TypeTruck/SUV
UPC700042016532
Part Number527504
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Instructions - 527504.pdf
Warranty - Flowmaster Warranty 26 Update.pdf
Universal Muffler - Some adaptation may be required.

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    *Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.