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

Ships directly from the vendor within 3 days
US $299.95
ApproximatelyC $411.02
List price US $344.94 (13% off)What does this price mean?
Recent sales price provided by the seller
Condition:
New
More than 10 available
Breathe easy. Free shipping and returns.
Shipping:
Free 4 day delivery
Get it between Tue, Jul 29 and Thu, Jul 31 to 94104.
Located in: Bowling Green, Kentucky, United States
Returns:
30 days return. Seller pays for return shipping.
Payments:
     Diners Club

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eBay item number:388624980966
Last updated on Jul 14, 2025 12:33:39 EDTView 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

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 feedback1.2M 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 ...
See more

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

Seller feedback (373,042)

All ratings
Positive
Neutral
Negative
  • *****- Feedback left by buyer.
    Past month
    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.
  • 0***1 (1)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Great system for the price. Quick on shipping. Was shipped in 2 boxes….one arrived a couple of days earlier than expected and the other arrived a couple of days later than expected. It was all good though. Seller responded promptly to my question. Will purchase again!
  • d***g (1505)- 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.

Product ratings and reviews

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

  • 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

  • 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