Performance

Tell Us More About Your Chevrolet K20. View all models

AutoZone carries hundreds of thousands of parts and accessories.

Select your Year, Make, Model and Engine to find those that fit your vehicle.

Chevy pioneered AWD utility with the classic C/K line-up, but maximizing those old combustion parts requires a few upgrades to your exhaust system. For more power and healthier engine, order the aftermarket Chevrolet K20 exhaust header from AutoZone's premium inventory.

Show of 13  Results
View:
  •  | Page 1 of 2 |  
  • Part Number: 11500FLT
  • Notes: Standard. Must remove the rubber stopper below the starter. Require air conditioner bracket PN[10042FLT]. With oxygen sensor- use reducer PN[10105FLT] for 2.5" Flange. With oxygen sensor - use reducer PN[10110FLT] for 3" flange. Primary tube collector size 1.5X3". Without air tubes. Modify stock exhaust to retain catalytic converter. Not legal for street use.
  • Part Number: 11510FLT
  • Notes: Standard; primary tube collector size 1.5x2.5"; Modify stock exhaust to retain catalytic converter.
  • Part Number: 49152-1FLT
  • Notes: Afterburner(TM). Ceramic; Without AIR Tubes; Modify Stock exhaust To Retain catalytic Converter; Not Legal For Street Use. With oxygen Sensor- Use reducer PN[10105FLT] For 2.5" flange. Require air conditioner Bracket PN[10042FLT]. With oxygen Sensor - Use reducer PN[10110FLT] For 3 in. Flange.
  • Part Number: 31530FLT
  • Application: With automatic transmission
  • Notes: Must use original factory big block engine frame mounts and hardware. Primary tube collector size 1.75X3". Modify stock exhaust to retain catalytic converter. Not legal for street use.
  • Part Number: 49152FLT
  • Notes: Afterburner(TM). Standard; Without AIR Tubes; Modify Stock exhaust To Retain catalytic Converter; Not Legal For Street Use. With oxygen Sensor- Use reducer PN[10105FLT] For 2.5" flange. Require air conditioner Bracket PN[10042FLT]. With oxygen Sensor - Use reducer PN[10110FLT] For 3 in. Flange.
  • Part Number: 31500FLT
  • Notes: Must remove the rubber stopper below the starter. Require air conditioner bracket PN[10042FLT]. Primary tube collector size 1.5X3". Without air tubes. Modify stock exhaust to retain catalytic converter. Not legal for street use.
  • Part Number: 11506FLT
  • Notes: Standard. Must remove the rubber stopper below the starter. Require air conditioner bracket PN[10042FLT]. With oxygen sensor- use reducer PN[10105FLT] for 2.5" Flange. With oxygen sensor - use reducer PN[10110FLT] for 3" flange. Primary tube collector size 1 5/8x2.5". Without air tubes. Modify stock exhaust to retain catalytic converter. Not legal for street use.
  • Part Number: 31506FLT
  • Notes: Must remove the rubber stopper below the starter. Require air conditioner bracket PN[10042FLT]. With oxygen sensor- use reducer PN[10105FLT] for 2.5" Flange. With oxygen sensor - use reducer PN[10110FLT] for 3" flange. Primary tube collector size 1 5/8x2.5". Without air tubes. Modify stock exhaust to retain catalytic converter. Not legal for street use.
  • Part Number: 11500SFLT
  • Notes: Standard. Primary tube collector size 1.5X3". With air injection manifold welded in. Modify stock exhaust to retain catalytic converter. Not legal for street use. Require air conditioner bracket PN[10042FLT]. With oxygen sensor- use reducer PN[10105FLT] for 2.5" Flange. With oxygen sensor - use reducer PN[10110FLT] for 3" flange
  • Part Number: 11530FLT
  • Application: With automatic transmission
  • Notes: Standard; Must use original factory big block engine frame mounts & hardware primary tube collector size 1.75x3"; Without AIR Tubes; Modify stock exhaust to retain catalytic converter; Not legal for street use.
  • Part Number: 1830S-6JT
  • Application: Cab and Pickup
    Without air injection
  • Notes: Titanium ceramic
    This Product has been granted a California Air Resources Board (CARB) "E.O" (Executive Order) Exemption, or is considered a Direct Replacement or Consolidated Replacement part. It is 50 State Legal when installed on the appropriate vehicle per the Manufacturer Application guide and Installation Instructions. D-57-29. Tube size: 1 5/8". Quantity per car: 5. Cat4Ward Shorty Header
  • Part Number: 1830S-6
  • Application: Without air injection
  • Notes: Stainless steel
    This Product has been granted a California Air Resources Board (CARB) "E.O" (Executive Order) Exemption, or is considered a Direct Replacement or Consolidated Replacement part. It is 50 State Legal when installed on the appropriate vehicle per the Manufacturer Application guide and Installation Instructions. D-57-29. Tube size: 1 5/8". Quantity per car: 5. Cat4Ward Shorty Header
  •  | Page 1 of 2 |  

When it comes to horsepower and torque, outflow is just as important as inflow. K20 exhaust headers from AutoZone fine-tune your gas pulse by lowering the pressure of exiting fumes. Factory manifolds tend to wear down much more quickly, but our aftermarket exhaust header for Chevrolet K20 features a high-strength build and weather-resistant coating. Performance manifolds also give you a lot more power and even extend the life of your engine. Order online for Same Day Store Pickup and enjoy trustworthy advice provided by helpful staff during your next store visit.

Other Customers Also Viewed

BUY WITH CONFIDENCE

ABOUT CORE PARTS

Buy online and return core parts to the store to be refunded the price.
Core Parts Policy

Core return policy

FREE SHIPPING

On Orders $75 or Greater
and free shipping to APO, FPO, DPO addresses.
Get More Details

Free shipping policy

RETURN ANYWHERE

Buy Online, Return
Anywhere
Get More Details

${returnanywherealttext}

SAME-DAY STORE PICKUP

Save time by buying online and picking up items in store.
Learn More

Same day store pickup
Payment Methods:
 
label.common.footer.alt.autozoneLogo