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Exhaust System for 1965 Buick Gran Sport

We have 4 Items In-stock.

Flowmaster - American Thunder Exhaust Systems

FLOWMASTER  – AMERICAN THUNDER EXHAUST SYSTEMS

Flowmaster’s American Thunder chambered exhaust system is dyno-proven to dramatically increase the power band, giving you more horsepower, torque, fuel economy and a new image with an aggressive, rich exhaust tone. Flowmaster, known as ‘the exhaust technology company,’ is a leading manufacturer of high performance exhaust systems and respected for design, innovation and engineering.

  • Flowmaster’s most popular exhaust system
  • Features an aggressive sound
  • 3-year limited warranty for aluminized steel/lifetime warranty for stainless steel
  • Come in aluminized or stainless steel
  • Proven to improve torque, horsepower and gas mileage
  • Mandrel-bent tubing allows for continuous airflow
  • Quick and easy installation
  • Best for muscle cars and trucks
  • Passenger side, split  or driver side exit design
  • Dyno-tested
  • Direct fit by vehicle year, make and model

Flowmaster American Thunder Exhaust System - Natural, Aluminized Steel

Best Seller
$503.69 $658.41 You Save $154.72 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Flowmaster 17119
  • Series: Flowmaster American Thunder
  • Material: Aluminized Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate-to-Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: Typically 5-7% increase over stock
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Exit Location: Dual Rear Exit
  • Exit Quantity: Dual
  • Includes: H-pipe, mounting hardware
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: 2.5 In. Inlet, 2.5 In. Outlet
  • Muffler Finish: Black
  • Muffler Material: Aluminized Steel
  • Muffler Quantity: Two
  • Muffler Type: Chambered
  • Notes: Includes Super 40 Series Muffler
  • System Type: Header-Back
  • Tip Cut: Tips Not Included
  • Tip Diameter: Tips Not Included
  • Tip Edge Style: Tips Not Included
  • Tip Finish: Tips Not Included
  • Tip Length: Tips Not Included
  • Tip Material: Tips Not Included
  • Tip Quantity: Tips Not Included
  • Tip Shape: Tips Not Included
  • Warranty: Flowmaster 3-Year Limited Warranty
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Fits the following 1965 Buick Gran Sport Submodels

  • 8 Cyl 4.9L | Base
  • 8 Cyl 7.0L | Base
  • 8 Cyl 6.6L | Base
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Flowmaster American Thunder Exhaust System - Natural, Aluminized Steel

$622.62 $813.88 You Save $191.26 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Flowmaster 17202
  • Series: Flowmaster American Thunder
  • Material: Aluminized Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: Typically 5-7% increase over stock
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Exit Location: Dual Side Exit
  • Exit Quantity: Dual
  • Includes: H-pipe, mounting hardware
  • Main Piping Diameter: 3 in.
  • Muffler Configuration: 3 In. Inlet, 3 In. Outlet
  • Muffler Finish: Black
  • Muffler Material: Aluminized Steel
  • Muffler Quantity: Two
  • Muffler Type: Chambered
  • Notes: Includes Super 40 Series Muffler; Tail pipe in turn down style
  • System Type: Header-Back
  • Tip Cut: Tips Not Included
  • Tip Diameter: Tips Not Included
  • Tip Edge Style: Tips Not Included
  • Tip Finish: Tips Not Included
  • Tip Length: Tips Not Included
  • Tip Material: Tips Not Included
  • Tip Quantity: Tips Not Included
  • Tip Shape: Tips Not Included
  • Warranty: Flowmaster 3-Year Limited Warranty
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Fits the following 1965 Buick Gran Sport Submodels

  • 8 Cyl 6.6L | Base
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Flowmaster American Thunder Exhaust System - Natural, Stainless Steel

$732.48 $957.49 You Save $225.01 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Flowmaster 817202
  • Series: Flowmaster American Thunder
  • Material: Stainless Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: Typically 5-7% increase over stock
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Exit Location: Dual Side Exit
  • Exit Quantity: Dual
  • Main Piping Diameter: 3 in.
  • Muffler Configuration: 3 In. Inlet, 3 In. Outlet
  • Muffler Finish: Black
  • Muffler Material: Stainless Steel
  • Muffler Quantity: Two
  • Muffler Type: Chambered
  • Notes: Includes Super 40 Series Muffler
  • System Type: Header-Back
  • Tip Cut: Cut
  • Tip Diameter: 3 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Natural
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Flowmaster Limited Warranty
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Fits the following 1965 Buick Gran Sport Submodels

  • 8 Cyl 4.9L | Base
  • 8 Cyl 7.0L | Base
  • 8 Cyl 6.6L | Base
See more

Flowmaster American Thunder Exhaust System - Natural, Stainless Steel

$569.82 $744.86 You Save $175.04 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Flowmaster 817412
  • Series: Flowmaster American Thunder
  • Material: Stainless Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: Typically 5-7% increase over stock
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Exit Location: Dual Side Exit
  • Exit Quantity: Dual
  • Includes: H-pipe, mounting hardware
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: 2.5 In. Inlet, 2.5 In. Outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: Two
  • Muffler Type: Chambered
  • Notes: Includes Super 40 Series Muffler; Tail pipe in turn down style
  • System Type: Header-Back
  • Tip Cut: Tips Not Included
  • Tip Diameter: Tips Not Included
  • Tip Edge Style: Tips Not Included
  • Tip Finish: Tips Not Included
  • Tip Length: Tips Not Included
  • Tip Material: Tips Not Included
  • Tip Quantity: Tips Not Included
  • Tip Shape: Tips Not Included
  • Warranty: Lifetime Flowmaster Limited Warranty
See more

Fits the following 1965 Buick Gran Sport Submodels

  • 8 Cyl 6.6L | Base
See more

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