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Exhaust System for 2009 Hummer H3

We have 16 Items In-stock. Select your vehicle's Submodel to continue.

Magnaflow Performance Exhaust Systems

MAGNAFLOW PERFORMANCE EXHAUST SYSTEMS

Over the past 30 years, Magnaflow has grown as a market leader of exhaust systems, focusing on three key elements with each product they produce—quality, power and sound. Magnaflow’s Performance exhaust systems feature stainless steel construction and mandrel bent pipes, allowing for greater fuel economy and improved performance. A full-bodied exhaust note, emblematic of the brand, is achieved through the smooth, lap-joint welded body, tightly packed with acoustical fibers designed to dampen irritating pitch tones.

Magnaflow Exhaust System, Magnaflow Performance, Stainless Steel, Natural
$694.90 List Price $899.28 Save $204.38 Availability: In Stock
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  • SKU#: M6616592
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt/Clamp On
  • Downpipe Diameter: 3 in.
  • Exit Location: Rear (Passenger's Side)
  • Exit Quantity: Single
  • Main Piping Diameter: 3 in.
  • Muffler Configuration: Single Inlet and Outlet
  • Muffler Finish: Polished
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Straight Thru
  • Notes: Includes: Mounting hardware, 5 x 11 x 22 in. muffler
  • System Type: Cat-Back
  • Tip Cut: Straight
  • Tip Diameter: 4 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 7 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: 1
  • Tip Shape: Round
  • Warranty: Lifetime Magnaflow Limited Warranty
see more Fits the following 2009 Hummer H3 submodels:
  • 8 Cyl 5.3L | Championship Series, Alpha
Magnaflow Exhaust System, Magnaflow Performance, Stainless Steel, Natural
$698.39 List Price $903.80 Save $205.41 Availability: In Stock
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  • SKU#: M6616832
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Advertised Power Gains: 10% increase in horsepower
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt/Clamp On
  • Exit Location: Split Rear
  • Exit Quantity: Dual
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual Outlet
  • Muffler Finish: Polished
  • Muffler Material: Stainless Steel
  • Muffler Quantity: Two
  • Muffler Type: Straight Thru
  • Notes: Includes: Mounting hardware, 5 x 8 x 18 in. muffler
  • System Type: Cat-Back
  • Tip Cut: Straight
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Rolled
  • Tip Finish: Polished
  • Tip Length: 7.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: 2
  • Tip Shape: Round
  • Warranty: Lifetime Magnaflow Limited Warranty
see more Fits the following 2009 Hummer H3 submodels:
  • 8 Cyl 5.3L | Alpha
Magnaflow Exhaust System, Magnaflow Performance, Stainless Steel, Natural
$698.28 List Price $903.65 Save $205.37 Availability: In Stock
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  • SKU#: M6616630
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt/Clamp On
  • Exit Location: Split Rear
  • Exit Quantity: Dual
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual Outlet
  • Muffler Finish: Polished
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Straight-Through
  • Notes: Includes: Resonator, mounting hardware, 5 x 11 x 22 in. muffler
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 7.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: 2
  • Tip Shape: Round
  • Warranty: Lifetime Magnaflow Limited Warranty
see more Fits the following 2009 Hummer H3 submodels:
  • 5 Cyl 3.7L | X, Base

Gibson - Split Rear Cat-Back Exhaust Systems

GIBSON – SPLIT REAR CAT-BACK EXHAUST SYSTEMS

Gibson’s Split Rear cat-back exhaust system is dyno-proven to dramatically increase the power band in the low to mid range, giving you more horsepower, torque and fuel economy and a design that leaves you room for a hitch, spare or roll pan. Gibson is known as the leading manufacturer of street-legal, high performance exhaust systems for trucks, SUVs, diesels, off-road vehicles and RVs.

  • Stainless exhausts backed by a lifetime warranty
  • Deep, rich sound (a bit louder when towing)
  • Patented Superflow technology means dramatically more efficient exhaust flow
  • Designed to work with most bumpers without interfering with a hitch, roll pan or spare tire
  • Comes in aluminized or stainless steel
  • Baffled and chambered design means optimal volumetric efficiency
  • Proven to improve torque, horsepower and gas mileage
  • Mandrel-bent tubing allows for continuous airflow
  • Polished stainless tips feature sleek clampless connection
  • Dyno-tested
  • Direct fit by vehicle year, make and model
  • Made in America
  • Legal in all 50 states
Gibson Exhaust System, Gibson Split Rear, Aluminized Steel, Natural
$396.27 List Price $696.69 Save $300.42 Availability: In Stock
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  • SKU#: G27312701
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Straight out the back
  • Exit Quantity: Dual
  • Includes: Superflow SFT muffler, over axle tail pipes, zinc-plated 0.375-0.5 in. factory style hangers, and heavy duty clamps
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual Outlet
  • Muffler Finish: Natural
  • Muffler Material: Aluminized Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2009 Hummer H3 submodels:
  • 8 Cyl 5.3L | Alpha, Championship Series
Gibson Exhaust System, Gibson Split Rear, Stainless Steel, Natural
$505.55 List Price $908.56 Save $403.01 Availability: In Stock
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  • SKU#: G27612701
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 8-10 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Straight out the back
  • Exit Quantity: Dual
  • Includes: Superflow SFT muffler, over axle tail pipes, zinc-plated 0.375-0.5 in. thick factory style hangers, and heavy duty clamps
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual Outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2009 Hummer H3 submodels:
  • 8 Cyl 5.3L | Alpha, Championship Series
Gibson Exhaust System, Gibson Split Rear, Stainless Steel, Natural
$509.77 List Price $908.56 Save $398.79 Availability: In Stock
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  • SKU#: G27612700
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 8-10 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Rear Tire
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps, bolt kit
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual Outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 4 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2009 Hummer H3 submodels:
  • 5 Cyl 3.7L | Base
Rating: (see review/s)

"You cant go wrong ordering we this company.The y also ship fast and reasonable" posted by: officer danko on February 23, 2014

Gibson - Swept Side Cat-Back Exhaust Systems

GIBSON – SWEPT SIDE CAT-BACK EXHAUST SYSTEMS

Gibson’s Swept Side cat-back exhaust system is dyno-proven to dramatically increase the power band in the 1800-3000 RPM range, giving you more horsepower, torque, fuel economy and towability with a rich, deep exhaust tone. Gibson is known as the leading manufacturer of street-legal, high performance exhaust systems for trucks, SUVs, diesels, off-road vehicles and RVs.

  • Gibson’s most popular, affordable and leading performance exhaust system
  • Stainless steel exhausts backed by a lifetime warranty
  • Patented Superflow technology means dramatically more efficient exhaust flow
  • Optimizes towing power, hill climbing and passability
  • Comes in aluminized or stainless steel
  • Proven to improve torque, horsepower (up to 20 hp) and gas mileage
  • Mandrel-bent tubing allows for continuous airflow
  • Polished stainless tips feature sleek clampless connection
  • Dyno-tested
  • Direct fit by vehicle year, make and model
  • Made in America
  • Legal in all 50 states
Gibson Exhaust System, Gibson Swept Side, Stainless Steel, Natural
$445.33 List Price $796.15 Save $350.82 Availability: In Stock
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  • SKU#: G27612801
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 8-10 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Straight out the back
  • Exit Quantity: Single
  • Includes: Superflow CFT muffler, head pipe, zinc-plated 0.375-0.5 in. thick factory style hangers, and heavy duty clamps
  • Main Piping Diameter: 3 in.
  • Muffler Configuration: Single Inlet and Outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 4 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 4 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: One
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2009 Hummer H3 submodels:
  • 8 Cyl 5.3L | Alpha, Championship Series
Gibson Exhaust System, Gibson Swept Side, Aluminized Steel, Natural
$328.98 List Price $578.96 Save $249.98 Availability: In Stock
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  • SKU#: G27312801
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Straight out the back
  • Exit Quantity: Single
  • Includes: Superflow CFT muffler, head pipe, zinc-plated 0.375-0.5 in. factory style hangers, and heavy duty clamps
  • Main Piping Diameter: 3.0 in.
  • Muffler Configuration: Single Inlet and Outlet
  • Muffler Finish: Natural
  • Muffler Material: Aluminized Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 4 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 4 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: One
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2009 Hummer H3 submodels:
  • 8 Cyl 5.3L | Alpha, Championship Series
Gibson Exhaust System, Gibson Swept Side, Stainless Steel, Natural
$445.33 List Price $796.15 Save $350.82 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
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  • SKU#: G27612800
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 8-10 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Straight out the back
  • Exit Quantity: Single
  • Includes: Pipes, installation hardware, gaskets
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: One
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2009 Hummer H3 submodels:
  • 5 Cyl 3.7L | Base

Gibson - Dual Extreme Cat-Back Exhaust Systems

GIBSON – DUAL EXTREME CAT-BACK EXHAUST SYSTEMS

Gibson’s Dual Extreme cat-back exhaust system will not only boost your extremist image, but is dyno-proven to dramatically increase your truck’s power with its aggressive style and sound – the most extreme in Gibson’s exhaust line-up. Gibson is known as the leading manufacturer of street-legal, high performance exhaust systems for trucks, SUVs, diesels, off-road vehicles and RVs.

  • Gibson’s most aggressively styled exhaust with the most aggressive sound
  • Stainless steel exhausts backed by a lifetime warranty
  • Dual exit style is aggressively angled at the rear wheels for optimal performance and sound
  • Patented Superflow technology means dramatically more efficient exhaust flow
  • Comes in aluminized or stainless steel
  • Proven to improve torque and horsepower (up to 20 hp) as well as mileage
  • Mandrel-bent tubing allows for continuous airflow
  • Polished stainless tips feature sleek clampless connection
  • Dyno-tested
  • Direct fit by vehicle year, make and model
  • Made in America
  • Legal in all 50 states
Gibson Exhaust System, Gibson Dual Extreme, Stainless Steel, Natural
$505.55 List Price $908.56 Save $403.01 Availability: In Stock
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  • SKU#: G2762211
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Each Rear Tire
  • Exit Quantity: Dual
  • Includes: Superflow SFT muffler, over axle tail pipes, zinc-plated 0.375-0.5 in. factory style hangers, and heavy duty clamps
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2009 Hummer H3 submodels:
  • 8 Cyl 5.3L | Alpha, Championship Series
Gibson Exhaust System, Gibson Dual Extreme, Aluminized Steel, Natural
$392.05 List Price $696.69 Save $304.64 Availability: In Stock
  • Free Ground Shipping
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  • SKU#: G272211
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Each Rear Tire
  • Exit Quantity: Dual
  • Includes: Superflow SFT muffler, over axle tail pipes, zinc-plated 0.375-0.5 in. thick factory style hangers, and heavy-duty clamps
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual Outlet
  • Muffler Finish: Natural
  • Muffler Material: Aluminized Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2009 Hummer H3 submodels:
  • 8 Cyl 5.3L | Alpha, Championship Series
Gibson Exhaust System, Gibson Dual Extreme, Stainless Steel, Natural
$509.77 List Price $908.56 Save $398.79 Availability: In Stock
  • Free Ground Shipping
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  • SKU#: G2762210
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Each Rear Tire
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps, bolt kit, grommet
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual Outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2009 Hummer H3 submodels:
  • 5 Cyl 3.7L | Base

Flowmaster - Force II Exhaust Systems

FLOWMASTER  – FORCE II EXHAUST SYSTEMS

Flowmaster’s Force II exhaust system is dyno-proven to dramatically increase the power band, giving you more horsepower, torque, fuel economy and a nice mild tone that doesn’t draw too much attention or seem too obnoxious for your daily commute. Flowmaster, known as ‘the exhaust technology company,’ is a leading manufacturer of high performance exhaust systems and respected for design, innovation and engineering.

  • Features a mild sound thanks to the use of larger displacement mufflers and resonators
  • 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 daily driver type vehicles
  • Passenger side, split  or driver side exit design
  • Dyno-tested
  • Direct fit by vehicle year, make and model
Flowmaster Exhaust System, Flowmaster Force II, Stainless Steel, Natural
$618.99 List Price $801.05 Save $182.06 Availability: In Stock
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  • SKU#: F13817526
  • Quantity Sold: Assembly
  • Muffler Sound Level: Mild
  • 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: Pipes, mounting hardware
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: 3 In. Inlet, 2.5 In. Outlet
  • Muffler Finish: Black
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Chambered
  • Notes: Includes Super 50 Series Muffler
  • System Type: Cat-Back
  • Tip Cut: Turndown
  • Tip Diameter: 3 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 11 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Flowmaster Limited Warranty
see more Fits the following 2009 Hummer H3 submodels:
  • 5 Cyl 3.7L | X, Base