FLOWMASTER
Flowmaster Exhaust Systems, Mufflers, and Accessories at JJ Motorsports
Flowmaster, founded in 1983 by Ray Flugger in Santa Rosa, California, initially called Hush Power, revolutionized the automotive exhaust industry by creating mufflers that reduced noise in racecars while enhancing performance. Starting with the iconic "suitcase muffler," Flowmaster has grown into a global leader in high-quality exhaust systems, known for innovation, durability, and superior sound engineering. Their products cater to a wide range of vehicles, including muscle cars, trucks, off-road vehicles, jeeps, SUVs, and classic cars, trusted by enthusiasts and professionals for boosting horsepower and torque.
At JJ Motorsports, we offer a comprehensive selection of Flowmaster products to upgrade your vehicle's exhaust system. For enhanced flow and aggressive sound, check out the American Thunder Cat-Back Exhaust System, or the versatile Outlaw Series Muffler. Improve performance with the Delta Force Headers, and complete your setup using the Scavenger Series Elite Headers. Whether you're tuning for the street or track, Flowmaster provides reliable solutions compatible with various models. Explore our inventory to find the perfect upgrades for your ride.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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98-03 Durango American Thunder Exhaust System FLO17208
FLOWMASTER
$562.95A quality exhaust system is fundamental to maximizing engine efficiency and power output on your second-generation Durango. The American Thunder Cat-Back system delivers improved scavenging and...FLO17208- SKU:
- FLO17208
- Availability:
- Ships Same Business Day
- Weight:
- 40.80 LBS
- MFG Part #:
- 17208
$562.95Qty in Cart: 0Quantity:Price:$562.95Subtotal: -
S/S Exhaust Tip 4.25 x 2.25in Oval - 2.5in Pipe FLO15385
FLOWMASTER
$72.45A quality exhaust tip is one of the most visible performance upgrades on your vehicle, and this polished stainless steel oval tip delivers both aesthetic appeal and functional exhaust flow. The 4.25...FLO15385- SKU:
- FLO15385
- Availability:
- Ships Same Business Day
- Weight:
- 1.53 LBS
- MFG Part #:
- 15385
$72.45 -
Hushpower Pro Muffler - 4.00 In/Out Aluminized FLO14020100
FLOWMASTER
$306.95The Hushpower Pro Muffler delivers aggressive sound suppression without sacrificing exhaust flow, making it ideal for street and moderate track applications where backpressure control matters. Its...FLO14020100- SKU:
- FLO14020100
- Availability:
- Ships Same Business Day
- Weight:
- 21.05 LBS
- MFG Part #:
- 14020100
$306.95 -
Hushpower Pro Muffler - 3.50 In/Out Aluminized FLO13516101
FLOWMASTER
$299.95If you're running a universal exhaust setup and need a muffler that delivers genuine sound deadening without sacrificing flow, the Hushpower Pro combines efficient silencing with a clean turndown...FLO13516101- SKU:
- FLO13516101
- Availability:
- Ships Same Business Day
- Weight:
- 11.30 LBS
- MFG Part #:
- 13516101
$299.95 -
Hushpower Pro Muffler - 3.00 In/Out Aluminized FLO13016100
FLOWMASTER
$277.95The Hushpower Pro Muffler delivers serious noise reduction without sacrificing exhaust flow, letting you run aggressive power while keeping sound levels track-legal or street-friendly. Its stainless...FLO13016100- SKU:
- FLO13016100
- Availability:
- Ships Same Business Day
- Weight:
- 10.65 LBS
- MFG Part #:
- 13016100
$277.95Qty in Cart: 0Quantity:Price:$277.95Subtotal: -
Hushpower II Muffler - 2.50 In/Out 18L 409S FLO12518409
FLOWMASTER
$199.95A quality muffler is fundamental to any performance exhaust system—it must flow efficiently without sacrificing sound control or durability. The Hushpower II delivers exactly that balance, using 409...FLO12518409- SKU:
- FLO12518409
- Availability:
- Ships Same Business Day
- Weight:
- 10.18 LBS
- MFG Part #:
- 12518409
$199.95Qty in Cart: 0Quantity:Price:$199.95Subtotal: -
Hushpower II Muffler - 2.50 In/Out 18L 304S FLO12518304
FLOWMASTER
$256.95The Hushpower II delivers serious noise reduction without sacrificing flow—critical for street-legal track cars and weekend warriors who need to pass inspection without losing performance. Its 304...FLO12518304- SKU:
- FLO12518304
- Availability:
- Ships Same Business Day
- Weight:
- 10.18 LBS
- MFG Part #:
- 12518304
$256.95 -
Hushpower II Resonator - 2.50 In/Out 12L FLO12512409
FLOWMASTER
$169.95Excessive exhaust drone at highway speeds kills the driving experience—the Hushpower II Resonator targets that annoying mid-range resonance without sacrificing flow or horsepower. Built from...FLO12512409- SKU:
- FLO12512409
- Availability:
- Ships Same Business Day
- Weight:
- 7.09 LBS
- MFG Part #:
- 12512409
$169.95 -
Hushpower II Resonator - 2.50 In/Out 12L 304S FLO12512304
FLOWMASTER
$199.95The Hushpower II Resonator is engineered to reduce exhaust drone and resonance frequencies while maintaining optimal flow characteristics through your 2.50-inch exhaust system. By strategically...FLO12512304- SKU:
- FLO12512304
- Availability:
- Ships Same Business Day
- Weight:
- 10.19 LBS
- MFG Part #:
- 12512304
$199.95 -
Hushpower II Resonator - 2.25 In/Out 12L FLO12412409
FLOWMASTER
$169.95Reduce exhaust drone and unwanted resonance frequencies without sacrificing flow or adding backpressure—the Hushpower II Resonator uses proven acoustic engineering to deliver a refined sound profile...FLO12412409- SKU:
- FLO12412409
- Availability:
- Ships Same Business Day
- Weight:
- 10.18 LBS
- MFG Part #:
- 12412409
$169.95Qty in Cart: 0Quantity:Price:$169.95Subtotal: -
Hushpower II Resonator - 2.00 In/Out 12L FLO12012409
FLOWMASTER
$169.95Excessive exhaust noise reduces drivability on street applications and can draw unwanted attention at the track. The Hushpower II Resonator uses tuned chamber technology to absorb mid-range...FLO12012409- SKU:
- FLO12012409
- Availability:
- Ships Same Business Day
- Weight:
- 8.50 LBS
- MFG Part #:
- 12012409
$169.95Qty in Cart: 0Quantity:Price:$169.95Subtotal: -
Scavenger Series Y-Collector 2.5in x 3in Y250300
FLOWMASTER
$120.95The Scavenger Series Y-Collector consolidates dual primary tubes into a single outlet, reducing backpressure and improving exhaust scavenging for measurable gains in mid-range torque and peak...FLOY250300- SKU:
- FLOY250300
- Availability:
- Ships Same Business Day
- Weight:
- 4.07 LBS
- MFG Part #:
- Y250300
$120.95 -
10 Series Delta Flow ASA Muffler 9435109
FLOWMASTER
$170.95The 10 Series Delta Flow ASA Muffler delivers efficient exhaust flow with minimal backpressure, making it an ideal choice for builders seeking a balance between performance and sound control. Its...FLO9435109- SKU:
- FLO9435109
- Availability:
- Ships Same Business Day
- Weight:
- 6.95 LBS
- MFG Part #:
- 9435109
$170.95Qty in Cart: 0Quantity:Price:$170.95Subtotal: -
10 Series Delta Flow Muffler 9430109
FLOWMASTER
$146.95The 10 Series Delta Flow Muffler delivers efficient exhaust scavenging with minimal backpressure, keeping engine temperatures in check while maintaining a controlled sound signature. Its compact oval...FLO9430109- SKU:
- FLO9430109
- Availability:
- Ships Same Business Day
- Weight:
- 7.46 LBS
- MFG Part #:
- 9430109
$146.95 -
10 Series Delta Force Race Muffler 325108
FLOWMASTER
$146.95The 10 Series Delta Force Race Muffler is engineered for racers and performance enthusiasts who demand maximum flow without sacrificing durability. Its compact oval design integrates seamlessly into...FLO325108- SKU:
- FLO325108
- Availability:
- Ships Same Business Day
- Weight:
- 4.71 LBS
- MFG Part #:
- 325108
$146.95 -
50 Series Delta Flow Muffler FLO942551
FLOWMASTER
$173.95The 50 Series Delta Flow Muffler delivers efficient exhaust scavenging with minimal backpressure, making it ideal for both street and track applications where flow consistency matters. Its offset...FLO942551- SKU:
- FLO942551
- Availability:
- Ships Same Business Day
- Weight:
- 15.40 LBS
- MFG Part #:
- 942551
$173.95 -
Super 44 Series Muffler FLO842448
FLOWMASTER
$139.95The Super 44 Series Muffler delivers a refined exhaust note while maintaining flow efficiency—ideal for street-driven performance builds where you need a balance between sound character and low...FLO842448- SKU:
- FLO842448
- Availability:
- Ships Same Business Day
- Weight:
- 10.00 LBS
- MFG Part #:
- 842448
$139.95 -
Cat Back Exhaust 19- Dodge Ram 1500 5.7L FLO817843
FLOWMASTER
$1,126.95If you're running a 5.7L Hemi in your 2019 Ram 1500, a quality cat-back exhaust is one of the most effective upgrades for unlocking both performance and sound. The American Thunder Cat Back delivers...FLO817843- SKU:
- FLO817843
- Availability:
- Ships Same Business Day
- Weight:
- 70.00 LBS
- MFG Part #:
- 817843
$1,126.95 -
Cat-Back Exhaust Kit 09- 13 GM P/U 1500 5.3L FLO817706
FLOWMASTER
$460.95If you're running a 5.3L LS in your 09-13 GM truck, factory exhaust is costing you horsepower and restricting your truck's potential. This cat-back kit delivers a direct path for exhaust gases to...FLO817706- SKU:
- FLO817706
- Availability:
- Ships Same Business Day
- Weight:
- 19.00 LBS
- MFG Part #:
- 817706
$460.95 -
Engine Cold Air Intake 14-18 Dodge Ram 2500 6.4 FLO615112
FLOWMASTER
$476.95The factory intake system on your 6.4L HEMI throttles airflow and forces your engine to work harder than it should. This cold air intake kit delivers significantly cooler, denser air directly to the...FLO615112- SKU:
- FLO615112
- Availability:
- Ships Same Business Day
- Weight:
- 11.70 LBS
- MFG Part #:
- 615112
$476.95Qty in Cart: 0Quantity:Price:$476.95Subtotal: -
Engine Cold Air Intake 09-18 Ram 1500 5.7L FLO615111
FLOWMASTER
$460.95Cold air intake systems are essential for unlocking your 5.7L Hemi's full potential—they reduce intake restriction, improve volumetric efficiency, and deliver measurable gains in horsepower and...FLO615111- SKU:
- FLO615111
- Availability:
- Ships Same Business Day
- Weight:
- 15.65 LBS
- MFG Part #:
- 615111
$460.95Qty in Cart: 0Quantity:Price:$460.95Subtotal: -
70 Series Hi-Performance Muffler FLO530702
FLOWMASTER
$249.95If you're running a big block engine and want to maximize exhaust flow without sacrificing street manners, the 70 Series Hi-Performance Muffler delivers measurable gains in scavenging efficiency and...FLO530702- SKU:
- FLO530702
- Availability:
- Ships Same Business Day
- Weight:
- 22.00 LBS
- MFG Part #:
- 530702
$249.95Qty in Cart: 0Quantity:Price:$249.95Subtotal: -
70 Series Hi-Performance Muffler FLO524704
FLOWMASTER
$243.95The 70 Series Hi-Performance Muffler delivers the exhaust flow you need to maximize horsepower while maintaining street-legal sound levels. Engineered with dual 2-1/4" inlets and outlets, this...FLO524704- SKU:
- FLO524704
- Availability:
- Ships Same Business Day
- Weight:
- 21.85 LBS
- MFG Part #:
- 524704
$243.95Qty in Cart: 0Quantity:Price:$243.95Subtotal: -
99-06 GM P/U Reg Cab SB Force II Exhaust System FLO17435
FLOWMASTER
$870.95If you're running a '99-'06 GM full-size truck with a standard-duty engine, upgrading to a quality cat-back exhaust is one of the most cost-effective ways to unlock hidden performance and improve...FLO17435- SKU:
- FLO17435
- Availability:
- Ships Same Business Day
- Weight:
- 69.00 LBS
- MFG Part #:
- 17435
$870.95 -
99-05 GM P/U Ext Cab SB Force II Exhaust System FLO17362
FLOWMASTER
$773.95A cat-back exhaust system is one of the most effective bolt-on modifications for improving your truck's performance and sound. The Force II delivers increased flow to your engine, reducing...FLO17362- SKU:
- FLO17362
- Availability:
- Ships Same Business Day
- Weight:
- 59.00 LBS
- MFG Part #:
- 17362
$773.95Qty in Cart: 0Quantity:Price:$773.95Subtotal: -
Hushpower Pro Muffler - 3.00/3.50 In/Out Alumnzd FLO13016101
FLOWMASTER
$189.95The Hushpower Pro Muffler delivers the acoustic control and flow efficiency serious builders demand without sacrificing exhaust scavenging or low-end torque. Its stainless steel construction and...FLO13016101- SKU:
- FLO13016101
- Availability:
- Ships Same Business Day
- Weight:
- 10.75 LBS
- MFG Part #:
- 13016101
$189.95Qty in Cart: 0Quantity:Price:$189.95Subtotal: -
Scavenger Series Y-Collector 3in x 4in Y300400
FLOWMASTER
$122.95Exhaust scavenging efficiency directly impacts horsepower and throttle response—especially in naturally aspirated and forced-induction builds where header design matters. The Scavenger Series...FLOY300400- SKU:
- FLOY300400
- Availability:
- Ships Same Business Day
- Weight:
- 5.58 LBS
- MFG Part #:
- Y300400
$122.95
