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1977 Pontiac Grand LeMans

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1977 Pontiac Grand LeMans Exhaust Muffler Parts

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8 Cyl 4.9L 8 Cyl 5.0L 8 Cyl 5.7L 8 Cyl 6.6L

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1977 Pontiac Grand LeMans Exhaust Muffler 8 Cyl 5.7L Flowmaster

50 Series™ Delta Flow Muffler
2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
50 Series™ Delta Flow Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel;
50 Series(TM) Delta Flow Muffler
Product Attributes:
- Tip Quantity: 0
- Muffler Type: Reflection
- Outlet Position: Center
- Inlet Diameter: 2.250 In.
- Sound Level: Moderate
- WARNING CA Proposition 65: No
- Fitment: Universal
- Body Width: 9.750 In.
- Inlet Type: Single Offset
- Body Length: 17.000 In.
- Inlet Outside Diameter: 2.250 In.
- Inlet Connection Type: Pipe
- Outlet Diameter: 2.500 In.
- Mount Type: Uses New Hangers (not Included)
- Automotive Item Grade: High Performance
- Outlet Connection Type: Pipe
- Muffler Series: 50 Series Delta Flow
- Overall Length: 23.000 In.
- Inlet Inside Diameter: 2.250 In.
- Outlet Outside Diameter: 2.250 In.
- Main Piping Diameter: 2.250 In.
- Shape: Oval
- Inlet Position: Offset
- Outlet Type: Single Center Outlet
Features:
- Durable Fully Welded 16ga Aluminized Steel
- 3 Year Limited Warranty
- Mild to Moderate Exterior Exhaust Tone
- Minimal Interior Resonance
- Excellent Choice For Street Rods Cars and Trucks
- Improved HP/TQ and Potential Mileage Improvement
- Race Proven Patented Delta Flow® Technology
- Premium Flowmaster Quality
The three chamber design utilizes Flowmasters Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1977 - Pontiac Grand LeMans	V	5733	8 Cyl 5.7L	350

21 In Stock

Holiday Special

$233.54 USD

$280.25 USD


Brand	Flowmaster
Part #	F13942451
Condition	New
Warehouse	B

1977 Pontiac Grand LeMans Exhaust Muffler 8 Cyl 5.7L Flowmaster

40 Series™ Muffler
2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; 409 Stainless Steel
40 Series™ Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; 409 Stainless Steel;
40 Series(TM) Muffler
Product Attributes:
- Tip Quantity: 0
- Muffler Type: Reflection
- Outlet Position: Center
- Inlet Diameter: 2.250 In.
- Sound Level: Aggressive
- WARNING CA Proposition 65: Yes
- Fitment: Universal
- Body Width: 9.750 In.
- Inlet Type: Single Offset
- Body Length: 13.000 In.
- Inlet Outside Diameter: 2.250 In.
- Inlet Connection Type: Pipe
- Outlet Diameter: 2.500 In.
- Mount Type: Uses New Hangers (not Included)
- Automotive Item Grade: High Performance
- California Proposition 65 Chemical Name 2: Chromium (hexavalent Compounds)
- Outlet Connection Type: Pipe
- California Proposition 65 Chemical Name 1: Nickel (metallic)
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Muffler Series: 40 Series
- Overall Length: 19.000 In.
- Inlet Inside Diameter: 2.250 In.
- Outlet Outside Diameter: 2.250 In.
- Main Piping Diameter: Oem
- Shape: Oval
- Inlet Position: Offset
- Outlet Type: Single Center Outlet
Features:
- 409 Stainless Steel
- Limited Lifetime Warranty
- Aggressive And Powerful Exterior Exhaust Tone
- Notable Interior Resonance
- Excellent Street/Strip And Off Road Application
- No Internal Packing To Blowout
- The Original Two Chamber Design
- Premium Flowmaster Quality
The Original 40 series muffler delivers an aggressive exterior and interior tone. If youre looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1977 - Pontiac Grand LeMans	V	5733	8 Cyl 5.7L	350

1 In Stock

Holiday Special

$186.82 USD

$224.18 USD


Brand	Flowmaster
Part #	F138042441
Condition	New
Warehouse	B

1977 Pontiac Grand LeMans Exhaust Muffler 8 Cyl 5.7L Flowmaster

Super 44™ Delta Flow Muffler
2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; 409 Stainless Steel Not Direct Fit-Some Adaptation Required
Super 44™ Delta Flow Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; 409 Stainless Steel;
Super 44(TM) Delta Flow Muffler
Product Attributes:
- Tip Quantity: 0
- Muffler Type: Reflection
- Outlet Position: Center
- Inlet Diameter: 2.250 In.
- Sound Level: Aggressive
- WARNING CA Proposition 65: Yes
- Fitment: Universal
- Body Width: 9.750 In.
- Inlet Type: Single Offset
- Body Length: 13.000 In.
- Inlet Outside Diameter: 2.250 In.
- Inlet Connection Type: Pipe
- Outlet Diameter: 2.500 In.
- Mount Type: Uses New Hangers (not Included)
- Automotive Item Grade: High Performance
- California Proposition 65 Chemical Name 2: Chromium (hexavalent Compounds)
- Outlet Connection Type: Pipe
- California Proposition 65 Chemical Name 1: Nickel (metallic)
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Muffler Series: Super 44 Series
- Overall Length: 19.000 In.
- Inlet Inside Diameter: 2.250 In.
- Outlet Outside Diameter: 2.250 In.
- Main Piping Diameter: Oem
- Shape: Oval
- Inlet Position: Offset
- Outlet Type: Single Center Outlet
Features:
- Durable Fully Welded 16ga Stainless Steel
- Limited Lifetime Warranty
- Deep Aggressive Exhaust Note
- Noticeable Interior Resonance
- Recent Two Chamber Improvement
- Race Proven Patented Delta Flow® Technology
- No Internal Packing To Blowout
- Premium Flowmaster Quality
Flowmasters Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a rich powerful tone and are the most aggressive, highest performing street muffler weve ever built in a four inch case. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1977 - Pontiac Grand LeMans	V	5733	8 Cyl 5.7L	350

7 In Stock

Holiday Special

$191.34 USD

$229.61 USD


Brand	Flowmaster
Part #	F13842446
Condition	New
Warehouse	B

1977 Pontiac Grand LeMans Exhaust Muffler 8 Cyl 5.7L Flowmaster

2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; 409 Stainless Steel
40 Series™ Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; 409 Stainless Steel;
40 Series™ Muffler
Product Attributes:
- Tip Quantity: 0
- Muffler Type: Reflection
- Outlet Position: Center
- Inlet Diameter: 2.250 In.
- Sound Level: Aggressive
- WARNING CA Proposition 65: Yes
- Fitment: Universal
- Body Width: 9.750 In.
- Inlet Type: Single Offset
- Body Length: 13.000 In.
- Inlet Outside Diameter: 2.250 In.
- Inlet Connection Type: Pipe
- Outlet Diameter: 2.500 In.
- Mount Type: Uses New Hangers (not Included)
- Automotive Item Grade: High Performance
- California Proposition 65 Chemical Name 2: Chromium (hexavalent Compounds)
- Outlet Connection Type: Pipe
- California Proposition 65 Chemical Name 1: Nickel (metallic)
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Muffler Series: 40 Series
- Overall Length: 19.000 In.
- Inlet Inside Diameter: 2.250 In.
- Outlet Outside Diameter: 2.250 In.
- Main Piping Diameter: Oem
- Shape: Oval
- Inlet Position: Offset
- Outlet Type: Single Center Outlet
Features:
- 409 Stainless Steel
- Limited Lifetime Warranty
- Aggressive And Powerful Exterior Exhaust Tone
- Notable Interior Resonance
- Excellent Street/Strip And Off Road Application
- No Internal Packing To Blowout
- The Original Two Chamber Design
- Premium Flowmaster Quality
The Original 40 series muffler delivers an aggressive exterior and interior tone. If youre looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1977 - Pontiac Grand LeMans	V	5733	8 Cyl 5.7L	350

1 In Stock

Holiday Special

$186.82 USD

$224.18 USD


Brand	Flowmaster
Part #	F138042441
Condition	New
Warehouse	B

1977 Pontiac Grand LeMans Exhaust Muffler 8 Cyl 5.7L Flowmaster

2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
50 Series™ Delta Flow Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel;
50 Series™ Delta Flow Muffler
Product Attributes:
- Tip Quantity: 0
- Muffler Type: Reflection
- Outlet Position: Center
- Inlet Diameter: 2.250 In.
- Sound Level: Moderate
- WARNING CA Proposition 65: No
- Fitment: Universal
- Body Width: 9.750 In.
- Inlet Type: Single Offset
- Body Length: 17.000 In.
- Inlet Outside Diameter: 2.250 In.
- Inlet Connection Type: Pipe
- Outlet Diameter: 2.500 In.
- Mount Type: Uses New Hangers (not Included)
- Automotive Item Grade: High Performance
- Outlet Connection Type: Pipe
- Muffler Series: 50 Series Delta Flow
- Overall Length: 23.000 In.
- Inlet Inside Diameter: 2.250 In.
- Outlet Outside Diameter: 2.250 In.
- Main Piping Diameter: 2.250 In.
- Shape: Oval
- Inlet Position: Offset
- Outlet Type: Single Center Outlet
Features:
- Durable Fully Welded 16ga Aluminized Steel
- 3 Year Limited Warranty
- Mild to Moderate Exterior Exhaust Tone
- Minimal Interior Resonance
- Excellent Choice For Street Rods Cars and Trucks
- Improved HP/TQ and Potential Mileage Improvement
- Race Proven Patented Delta Flow® Technology
- Premium Flowmaster Quality
The three chamber design utilizes Flowmasters Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1977 - Pontiac Grand LeMans	V	5733	8 Cyl 5.7L	350

21 In Stock

Holiday Special

$233.54 USD

$280.25 USD


Brand	Flowmaster
Part #	F13942451
Condition	New
Warehouse	B

1977 Pontiac Grand LeMans Exhaust Muffler 8 Cyl 5.7L Flowmaster

2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; 409 Stainless Steel Not Direct Fit-Some Adaptation Required
Super 44™ Delta Flow Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; 409 Stainless Steel;
Super 44™ Delta Flow Muffler
Product Attributes:
- Tip Quantity: 0
- Muffler Type: Reflection
- Outlet Position: Center
- Inlet Diameter: 2.250 In.
- Sound Level: Aggressive
- WARNING CA Proposition 65: Yes
- Fitment: Universal
- Body Width: 9.750 In.
- Inlet Type: Single Offset
- Body Length: 13.000 In.
- Inlet Outside Diameter: 2.250 In.
- Inlet Connection Type: Pipe
- Outlet Diameter: 2.500 In.
- Mount Type: Uses New Hangers (not Included)
- Automotive Item Grade: High Performance
- California Proposition 65 Chemical Name 2: Chromium (hexavalent Compounds)
- Outlet Connection Type: Pipe
- California Proposition 65 Chemical Name 1: Nickel (metallic)
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Muffler Series: Super 44 Series
- Overall Length: 19.000 In.
- Inlet Inside Diameter: 2.250 In.
- Outlet Outside Diameter: 2.250 In.
- Main Piping Diameter: Oem
- Shape: Oval
- Inlet Position: Offset
- Outlet Type: Single Center Outlet
Features:
- Durable Fully Welded 16ga Stainless Steel
- Limited Lifetime Warranty
- Deep Aggressive Exhaust Note
- Noticeable Interior Resonance
- Recent Two Chamber Improvement
- Race Proven Patented Delta Flow® Technology
- No Internal Packing To Blowout
- Premium Flowmaster Quality
Flowmasters Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a rich powerful tone and are the most aggressive, highest performing street muffler weve ever built in a four inch case. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.