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Flowmaster 527504 50 Series Big Block Muffler, 2.75 In/Out

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Speedway Motors
(326027)
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US $269.95
List price US $310.44 (13% off)What does this price mean?
Recent sales price provided by the seller
as low as $46.85/mo with
Condition:
New
Compatibility:
More than 10 available

Additional service available

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Shipping:
Free 2-4 day delivery
Get it between Tue, Aug 26 and Thu, Aug 28 to 94104.
Located in: Bowling Green, Kentucky, United States
Returns:
30 days returns. Seller pays for return shipping.
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As low as $46.85/mo with Klarna.
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eBay item number:388624980966
Last updated on Aug 18, 2025 11:11:17 PDTView all revisionsView all revisions

Compatibility

This part is compatible with 941 vehicle(s)
YearMakeModelTrimEngineNotes
2007HummerH2Adventure Sport Utility 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; AWD" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:50 SeriesTM Big Block Muffler
2007HummerH2Base Crew Cab Pickup 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; 4WD" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:50 SeriesTM Big Block Muffler
2007HummerH2Base Sport Utility 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; 4WD" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:50 SeriesTM Big Block Muffler
2007HummerH2Luxury Sport Utility 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; AWD" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:50 SeriesTM Big Block Muffler
2007HummerH2Special Edition Sport Utility 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; AWD" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:50 SeriesTM Big Block Muffler
2006HummerH2Adventure Crew Cab Pickup 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; AWD" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:50 SeriesTM Big Block Muffler
2006HummerH2Base Crew Cab Pickup 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; 4WD; 4WD, Base" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:; 50 SeriesTM Big Block Muffler
2006HummerH2Base Sport Utility 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; 4WD; 4WD, Base" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:; 50 SeriesTM Big Block Muffler
2006HummerH2Luxury Sport Utility 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; AWD" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:50 SeriesTM Big Block Muffler
2005HummerH2Adventure Crew Cab Pickup 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; AWD" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:50 SeriesTM Big Block Muffler
2005HummerH2Adventure Sport Utility 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; AWD" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:50 SeriesTM Big Block Muffler
2005HummerH2Base Crew Cab Pickup 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; 4WD; 4WD, Base" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:; 50 SeriesTM Big Block Muffler
2005HummerH2Base Sport Utility 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; 4WD; 4WD, Base" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:; 50 SeriesTM Big Block Muffler
2005HummerH2Luxury Sport Utility 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; AWD" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:50 SeriesTM Big Block Muffler
2004HummerH2Base Sport Utility 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; 4WD; 4WD, Base" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:; 50 SeriesTM Big Block Muffler
2003HummerH2Base Sport Utility 4-Door6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; 4WD; 4WD, Base" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:; 50 SeriesTM Big Block Muffler
1999ChevroletC2500400 SS Standard Cab Pickup 2-Door5.7L 350Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; RWD" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:50 SeriesTM Big Block Muffler
1999ChevroletC2500Austera Standard Cab Pickup 2-Door5.7L 350Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; RWD" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:50 SeriesTM Big Block Muffler
1999ChevroletC2500Base Cab & Chassis 2-Door5.7L 350Cu. In. V8 CNG OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; RWD; RWD, Base" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:; 50 SeriesTM Big Block Muffler
1999ChevroletC2500Base Cab & Chassis 2-Door5.7L 350Cu. In. V8 GAS OHV Naturally AspiratedNote:"2.75" Dual Inlet/2.5" Dual Outlet; Case Dimensions 5" x 12" x 22"; 28" Overall Length; Aluminized Steel; Not Direct Fit-Some Adaptation Reqd; RWD; RWD, Base" PartType:Exhaust Muffler Quantity Required:1 Mfrlabel:; 50 SeriesTM Big Block Muffler
Portions of the information contained in this table have been provided by speedway_motors

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Type
Exhaust Mufflers
Material
Steel
Inlet Diameter
2.75 "
Outlet Diameter
2.5 "
Finish
Black
Item Length
30.50
California Prop 65 Warning
False
UPC
700042016532
Brand
Flowmaster
Manufacturer Part Number
527504
Category

About this product

Product Identifiers

Brand
Flowmaster
Manufacturer Part Number
527504
eBay Product ID (ePID)
79359156

Additional Product Features

Notes
Description--50 Series(TM) Big Block Muffler
Sub Type
Exhaust Muffler
Part Type
Mufflers

Item description from the seller

About this seller

Speedway Motors

99.2% positive feedback•1.2M items sold

Joined Apr 2000
Since 1952, Speedway Motors has been committed to providing a broad selection of high-quality, affordable automotive parts – delivered quickly, efficiently and without hassles. Speedway is more than a ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
4.9
Shipping speed
5.0
Communication
5.0

Popular categories from this store

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SEMA 2024Featured Speedway Motors ItemsNew & TrendingSpeedway KitsAward Winning ProductsDealsSpeedway Motors Safety GearAir & Fuel DeliveryApparel, Gifts & Literature

Seller feedback (374,082)

All ratings
Positive
Neutral
Negative
  • *****- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Recommend seller. Items as described. Quality item, and the item was a good value for the price. Item was delivered in excellent condition. Shipping time was excessive. This would be eBay’s fault, not the seller. Item shipped out June 16 from USA, and delivered July 8 in Canada. eBay definitely needs to overhaul their international shipping to provide better service for the amount they charge.
  • r***m (546)- Feedback left by buyer.
    Past month
    Verified purchase
    Fast shipping on the sellers part, the shipping company beat the heck out of the shipping box, (not sellers fault), item was exactly as described, great communication. Highly recommended seller.
    G Force RCF2L-700 Transmission Crossmember,1975-1981 F-Body, GM-2 (#267244702687)
  • d***g (1526)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    I Love speedway , though this time they upset me a little .. waiting for wheels finally called and they tell me on backorder and 6 months before they will be shipped , they should have contacted me , or better yet , don't advertise things you don't have , but this is the first problem in well over 20 years . they are still on my top for sellers.
    Vision 531-5165P-25 American Muscle 531 Street Lite Wheel, 15X10 (#135583192309)
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Product ratings and reviews

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4.0
2 product ratings
  • 1 users rated this 5 out of 5 stars
  • 0 users rated this 4 out of 5 stars
  • 1 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 2 reviews
  • by fincate05
    Mar 22, 2017

    Flowmaster 50 series big block

    It sounds good but on a 6.0 chevy with no catalytic converters you get a high pitched cackle at certain rpms.

    Verified purchase: YesCondition: NewSold by: wheelcounterllc

  • by davbala-43
    Jun 23, 2020

    ALL GOOD HERE

    I TRULY LOVE THIS MUFFLER. THE SOUND IS GREAT AND THE TRUCK FEELS MORE RESPONSIVE WHEN I ACCELERATE ........FLOWMASTER YOU DID A GREAT JOB

    Verified purchase: YesCondition: NewSold by: pricebreak-deals

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