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Doug's Headers Corvette Side Pipe Mufflers

Doug's Headers Corvette side pipe mufflers afford you the option of choosing your desired power and sound! Three different side pipe muffler inserts are offered. Doug's maximum flow mufflers provide the most power; reverse flow mufflers are quieter; and glasspack mufflers balance power and throaty sound. Whether your concern is sound control or maximum power, Doug's choice of Corvette side pipe mufflers will match your desires.

4.7 out of 5 stars ( 37 )

$248.99

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$292.64

Car Chemistry Exhaust Inserts

Now you can have the over-the-top power and torque of open headers and still meet all of your sound requirements. These 18-gauge steel exhaust inserts from Car Chemistry fit directly into your header collectors and reduce sound output without restricting power. The 2-disc inserts are for racing applications and meet NHRA noise requirements, while the 3-disc inserts are for use on street/strip vehicles.

4.42 out of 5 stars ( 118 )

$48.79

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$73.99

Hooker Super Competition Sidetube Slip-in Mufflers

Hooker Super Competition sidetube slip-in mufflers have been developed for vehicles with 4 in. sidepipes, such as those equipped with Hooker Super Roadster and side mount headers. The mufflers are easily removed for racing purposes, and are available in a performance-style glasspack or in a quieter, all-metal, reverse flow-style. They produce an average of 23 percent more power than open headers, and feature a high-flow, perforated core that operates at 99 percent efficiency. High-temperature packing material absorbs noise while producing a powerful, mellow sound. The outer case is constructed of durable 16-gauge aluminized steel and protected by electrostatically applied high-temperature black paint. The inlet and outlet are 2.5 in. perforated cores in a 4 in. casing.

4.29 out of 5 stars ( 45 )

$316.95

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$319.95

ZZPerformance Exhaust Insert Cones

Reduce decibels with ZZPerformance exhaust insert cones. These slip-fit sound reducers fit directly into your exhaust, but you will need to either use the integrated nut or tack weld them in. Available in two sizes, each cone will typically result in a reduction of 1 to 3 dB. Bring down the volume without the need for extra resonators or mufflers with ZZP's exhaust insert cones. Choose the size needed for your exhaust. Features: * 100 percent T-304 stainless steel construction * Compact size fits all racing applications * Ultra lightweight at less than 1/2 lb. each * Little or no power loss * Easy bolt-in or weld on installation

4.83 out of 5 stars ( 6 )

$49.99

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$54.99

Summit Racing™ Exhaust Insert Cones

Summit Racing™ exhaust insert cones are used to reflect and dissipate sound energy, effectively reducing the decibel level. These are manufactured from T-304 stainless steel and due to the open nature of the cone, it does not significantly increase back pressure. The inserts are sold in several different size to suit your individual needs.

3.67 out of 5 stars ( 12 )

$80.99

Patriot Muffler Inserts

Get sound control for your pipes with Patriot muffler inserts. Offered in a standard and auger style, Patriot inserts are designed to provide excellent sound control with or without fiberglass packing. Standard inserts feature a heavy-duty, 6-sided louvered core that is wrapped with high-temperature packing for long life. Slip Patriot muffler inserts inside exhaust turnouts, side pipes, or extensions, for sound control of almost any occasion.

4.43 out of 5 stars ( 77 )

$28.10

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$60.45

Borla Exhaust Block-Off Plates

Borla exhaust block-off plates allow you to customize the sound of your vehicle. By changing the block-off plates, you can adjust the SPL (Sound Pressure Level) to your taste. They're machined from T-304 stainless steel so you'll never have to worry about rust. Order the kit recommended for your application.

5.0 out of 5 stars ( 3 )

$58.99

HardDrive Exhaust Torque Valves

HardDrive exhaust torque valves, or torque cones as some like to call them, are designed to give back some of the bottom end torque that is lost when drag pipes or exhaust systems without baffles are used. HardDrive exhaust torque valves fit a variety of applications and are made from durable stainless steel.

5.0 out of 5 stars ( 1 )

$16.16

Kuryakyn Torque Cones

Kuryakyn torque cones are designed to create a back-pressure while accelerating the exhaust gases through the pipe to avoid resonance. Long rides are more pleasant with the cones installed because the engine has a more constant response. Smooth out your power curve to provide a more consistent performance—and recover some of that lost horsepower and gas mileage without affecting the sound. Torque cones are available for a variety of Harley-Davidson® bikes from 1984 and up.

Not Yet Reviewed

$46.99