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Hooker Competition Turbo Muffler

Single 2-1/4" Offset Inlet, Single 2-1/4" Center Outlet. Low back pressure baffle network designed to flow in either direction resulting in better performance and economy.

Part # 21005HKR Be the first to write a review
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Competition Turbo Mufflers utilize a low back pressure baffle network designed to flow in either direction resulting in better performance and economy.


  • Improved Engine Efficiency Results in Better Performance and Economy
  • 4-1/4"H x 9-3/4"W x 13"L Oval Shaped Double Wrapped Aluminized Steel Construction for Longer Life
  • Throaty Exhaust Sound on Acceleration with Quiet Operation at Idle and Cruising Speeds
  • Compact Muffler Design Flows Either Direction, Allowing Easy Installation
  • 2-1/4" free flow cores Ensure a Low backpressure Reverse Flow Baffle Network
  • Single 2-1/4" Center Outlet
  • Single 2-1/4" Offset Inlet

About Hooker

Since the golden era of drag racing in the 1960s, Hooker has helped more racers reach the Winner's Circle than any other header company. From the stoplight to the race track, Hooker exhaust technology will make your car or truck perform and sound better.

Automotive Item GradeHigh Performance
Body Height (in)4.25
Body Length (in)13
Body Width (in)9.75
Brand Hooker
Emission Code5
Inlet Connection TypePipe Connection
Inlet Diameter (in)2.25
Inlet PositionOffset
MaterialAluminized Steel
Mount TypeUses New Hangers (Not Included)
Muffler SeriesHooker Competition
Muffler TypeTurbo
Outlet Connection TypePipe Connection
Outlet Diameter (in)2.25
Outlet PositionCenter
Overall Length (in)16.5
Product TypeStreet Mufflers
Sound LevelModerate Sound
Type of MufflerTurbo
Vehicle Type4/6 CYL Engine
Classic Muscle Car
Late Model Muscle Car
Street Rod
California Proposition 65 RequiredYes
Part Number21005HKR

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.

Universal Performance Muffler

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