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Hooker Competition Header-Back Exhaust Systems for 1963-1974 CORVETTE - 16521HKR Systems, Header-Back, Dual, Steel, Aluminized, Split Rear Exit, Chevrolet, Kit

SKU: HOK16521HKR

Exhaust Systems

Hooker Competition Header-Back Exhaust Systems for 1963-1974 CORVETTE - 16521HKR Systems, Header-Back, Dual, Steel, Aluminized, Split Rear Exit, Chevrolet, Kit

SKU: HOK16521HKR

Exhaust Systems
A$1,231.20
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

IMPORTANT NOTICE: Note for Australian and European MarketsUnless otherwise stated, this product may be engineered for use in Left-Hand Drive vehicles. Steering components, pedals, shifters, linkages, instrument clusters, panhard rods/traction bars, drag links, brake boosters, brake or clutch lines, accelerator cables, heater cores, some master cylinders and adjacent parts can vary between LHD and RHD configurations. In some models compenents such as windscreen wiper arms, motors and linkages could differ in their size and orientation. Items such as floor mats & dash mats may have differences in their structure around the front row (or padding in different locations). In many cases items are identical depending on the design of the vehicle and part, but may have differing mounts, lengths or bolt patterns. Carefully review the product images and details to ensure suitability for your vehicle, or contact StreetFX support if you are unsure. Returns are not accepted for special order products.(keyword: header)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.Reference Information Reference Data (Provide these details to our support team) Brand Name/s Hooker Headers, Hooker, Hooker (holley), Hooker Blackheart StreetFX SKU hok16521HKR SFX Item ID 5013476 Accounting SKU hok-16521HKR Manufacturer SKU 16521HKR Manufacturer UPC 700414023595 Alternative References 16521HKR, HKR16521, HKR16521HKR, HOK-16521HKR

Exhaust System - Header-Back - 2.25 in Diameter - Steel - Natural - Small Block Chevy - Chevy Corvette 1963-74 - Kit


Data: v2 - Desc: v4.2 - Upd: 2026-10-14 03:16:27

Part Type

63-82 SB Vette Exhaust Kit

Data: v4.2 - Upd: 2026-10-14 03:16:27

Specifications

Exhaust Systems, Competition Header-Back, Dual, Steel, Aluminized, Split Rear Exit, Chevrolet, Kit

Maximize your exhaust flow and reduce back pressure. Hooker Competition header-back exhaust systems feature large-diameter, 16-gauge steel tubing for improved efficiency, less backpressure, and longer life. Each system is mandrel-bent to maintain a consistent inside diameter for maximum flow. All systems come without mufflers.

Product Attributes
BrandHooker Headers
Manufacturer's Part Number16521HKR
Part TypeExhaust Systems
Product LineHooker Competition Header-Back Exhaust Systems
UPC700414023595
System MaterialSteel
System StyleHeader-back
Exhaust TypeDual
Exit LocationSplit rear
System FinishAluminized
Catalytic Converter(s) IncludedNo
Intermediate Pipe Diameter (in.)2.25 in.
Muffler IncludedNo
Hardware IncludedYes
Tailpipe Diameter (in.)2.25 in.
Tip IncludedNo
RemanufacturedNo
QuantitySold as a kit.
NotesMust use 2 1/4 in. offset inlet/center outlet muffler. Designed for use with Hooker Competition headers. Will not fit applications equipped with TH400 automatic transmission.
Special AttentionIt is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards.

Reference Information

Brand Name/s Hooker Headers
StreetFX SKU hok16521HKR
SFX Item ID 5013476
Supplier Item Code 5013476
Manufacturer SKU 16521HKR
Manufacturer UPC 700414023595
Alternative References HKR16521, HKR16521HKR

Compatibility

No specific fitment data available for this part. For clarification, please contact us.

Detailed Compatibility


Application Data
Application NotesMust use 2 1/4 in. offset inlet/center outlet muffler. Designed for use with Hooker Competition headers. Will not fit applications equipped with TH400 automatic transmission.
Beginning Year1963
Body StyleConvertible
Doors2
DrivetrainRWD
Ending Year1968
Engine FamilyChevy small block Gen I
Engine Size5.3L/327
Engine TypeV8
MakeCHEVROLET
ModelCORVETTE
SubmodelBASE
TransmissionAutomatic
UniversalNo
Application NotesMust use 2 1/4 in. offset inlet/center outlet muffler. Designed for use with Hooker Competition headers. Will not fit applications equipped with TH400 automatic transmission.
Beginning Year1963
Body StyleConvertible
Doors2
DrivetrainRWD
Ending Year1968
Engine FamilyChevy small block Gen I
Engine Size5.3L/327
Engine TypeV8
MakeCHEVROLET
ModelCORVETTE
SubmodelBASE
TransmissionManual
UniversalNo
Application NotesMust use 2 1/4 in. offset inlet/center outlet muffler. Designed for use with Hooker Competition headers. Will not fit applications equipped with TH400 automatic transmission.
Beginning Year1963
Body StyleCoupe
Doors2
DrivetrainRWD
Ending Year1968
Engine FamilyChevy small block Gen I
Engine Size5.3L/327
Engine TypeV8
MakeCHEVROLET
ModelCORVETTE
SubmodelBASE
TransmissionAutomatic
UniversalNo

This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.

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