order by phone (Se Habla Español) 1-800-913-6119 | 1-801-214-2997 or Live Chat
APWPART FINDER
My Vehicle Add New
  • Select Year
  • Select Make
  • Select Model
  • Select Submodel
  • Select Engine

Filter Products by

Exhaust System for 1965 Buick Gran Sport

We have 3 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 Exhaust System, Flowmaster American Thunder, Aluminized Steel, Natural
$479.99 List Price $621.16 Save $141.17 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: F1317119
  • 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
see more Fits the following 1965 Buick Gran Sport submodels:
  • 8 Cyl 6.6L | Base
Flowmaster Exhaust System, Flowmaster American Thunder, Stainless Steel, Natural
$542.99 List Price $702.69 Save $159.70 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: F13817412
  • 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
Flowmaster Exhaust System, Flowmaster American Thunder, Aluminized Steel, Natural
$557.81 List Price $878.71 Save $320.90 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: F1317202
  • 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
see more Fits the following 1965 Buick Gran Sport submodels:
  • 8 Cyl 6.6L | Base