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Flowmaster Resonator

Resonator - Universal - 2.50 in. Offset In / 2.50 in. Offset Out

PART# 15150S

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Flowmaster's universal resonator helps avoid interior drone with an innovative product designed by Flowmaster's advanced R & D lab. Featuring a 2.50 inch offset inlet, 2.50 inch same side offset outlet, it delivers sound control on tough to quiet applications unlike anything else on the market. Flowmaster's universal resonator can be installed in front of or behind the muffler in new or existing installations and will work with other muffler types beyond Flowmaster. These amazing resonators feature full 409S stainless construction and are backed by our limited lifetime warranty. Best of all, they contain no packing materials so the tone achieved on initial start up, is the tone for life. These resonators have proven to be very effective when installed in the tailpipes behind the mufflers in dual muscle car applications, but can also be used in smaller displacement truck and SUV applications.


  • Universal
  • Reduces interior resonance
  • Universal inline resonator 2.50 in. inlet and outlet
  • Durable fully welded 409 stainless steel


Automotive Item GradeHigh Performance Part
Body Height (in)3
Body Length (in)11.75
Body Width (in)6
Emission Code5
Inlet Connection TypeStraight Pipe
Inlet Diameter (in)2.5
Inlet PositionOffset
MaterialStainless Steel
Material Gauge16
Mount TypeNo
Outlet Connection TypeWeld-On
Outlet Diameter (in)2.5
Outlet PositionOffset (Same End)
Product TypeExhaust Accessories
Sound LevelMild Sound
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number15150S



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Universal Resonator - Not a direct fit. Some adaptation required.
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