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Jba

Jba

JBA 67-70 Ford Mustang 390-428 FE 1-3/4in-2-1/2in Primary Silver Ctd Tri Y Header

SKU: JBA6655SJS

Headers

JBA Tri Y Headers...

Jba

Jba

JBA 67-70 Ford Mustang 390-428 FE 1-3/4in-2-1/2in Primary Silver Ctd Tri Y Header

SKU: JBA6655SJS

Headers

JBA Tri Y Headers...

A$2,536.51
LOW STOCK! Est Ship 3-5 days. In stock at 2 locations (7 available)

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Description

Long Tube Header

JBA long tube headers are the number one choice for maximum performance gains and high RPM efficiency. Available in 409 or 304 Series Stainless Steel. These long tube designs are dyno and race proven to deliver the greatest possible increase in horsepower and torque throughout the RPM range. All JBA long tube headers feature large mandrel-bent stainless steel primary tubes, oversized exhaust ports, extra thick 3/8 one-piece flanges, and proprietary JBA Firecone® merged collectors for smooth flow. Each system is designed to give the maximum amount of ground clearance possible, so lowered cars do not drag the collectors.

Additional Information

JBA Tri Y Header 67-70 Mustang 390-428 FE Stick or Auto 1 3/4-2 1/2" Primary Silver Ctd 6655SJS

Product Overview

JBA long tube headers are the number one choice for maximum performance gains and high RPM efficiency. Available in 409 or 304 Series Stainless Steel. These long tube designs are dyno and race proven to deliver the greatest possible increase in horsepower and torque throughout the RPM range. All JBA long tube headers feature large mandrel-bent stainless steel primary tubes, oversized exhaust ports, extra thick 3/8 one-piece flanges, and proprietary JBA Firecone® merged collectors for smooth flow. Each system is designed to give the maximum amount of ground clearance possible, so lowered cars do not drag the collectors.

Additional Application Notes
• With C6 or 4 Speed transmission. Metallic Ceramic Coated Matching mid-pipes available. Fits most rack and pinion conversions. Factory power steering cars need 6656P JBA P/S ram drop down bracket.
• With C6 or 4 Speed transmission. Matching mid-pipes available. Fits most rack and pinion conversions. Factory power steering cars need 6656P JBA P/S ram drop down bracket.

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

Data: v4.2 - Upd: 2026-11-11 11:10:48

Features

  • 3/8" thick CNC laser-cut flanges
  • Large diameter mandrel-bent steel tubes
  • O2 sensor provisions
  • Oversized exhaust ports
  • Patented JBA Firecone® collector

Note for Australian and European Markets

Unless otherwise stated, this product may be engineered for use in Left-Hand Drive vehicles. Steering components, pedals, shifters, linkages, wing mirrors, 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.

Specifications

Product Details

Catalytic Converter(s) Included:No
Collector Diameter:2.25
Collector Port Diameter:2.25
Collector Reducers Included:Yes
Color:Grey
Description:67-70 Mustang Tri Y 390-428 Silver Ctd
Design:Full-length
Finish:Metallic Ceramic Coated
Flange Thickness:3/8
Gasket Or Seal Included:Yes
Gaskets Included:Yes
Grade Type:Performance
Header Material:409 Stainless Steel
Header Style:Full-length
Mounting Hardware Included:Yes
Oxygen Sensor Port:No
Part Number:jba6655SJS
Primary Tube Outside Diameter:1.75
Primary Tubing Diameter:1.75
Sheen Level:Semi-Gloss
Tube Wall Thickness:0.059

Product Downloads

# Document Type Download
1. Catalog

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 03:58:07

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Jba, Jba Performance Exhaust
StreetFX SKU jba6655SJS
SFX Item ID 4072070
Accounting SKU jba-6655SJS
Manufacturer SKU 6655SJS
Manufacturer UPC 694342531140
Alternative References JBA-6655SJS

Headers, Competition Ready, Stainless Steel, Silver Ceramic Coated, Ford, Big Block FE, Pair

JBA Performance Exhaust competition-ready long tube headers are the number-one choice for maximum performance gains and high rpm efficiency. Their designs are dyno and race-proven to deliver the greatest possible increase in horsepower and torque throughout the rpm range. All JBA long tube headers feature large mandrel-bent stainless steel primary tubes, oversized exhaust ports, extra-thick 3/8 in. one-piece flanges, and patented merged collectors for smooth flow. Each system is designed to give the maximum amount of ground clearance possible so that lowered cars do not drag the collectors. And, in addition, each JBA system includes high-quality hardware and thorough instructions to provide a professional, no-leak installation.

Product Attributes
BrandJBA Performance Exhaust
Manufacturer's Part Number6655SJS
Part TypeHeaders
Product LineJBA Performance Exhaust Competition-Ready Headers
UPC694342531140
Header StyleLong tube one-piece
Header Material409 stainless steel
Primary Tube Outside Diameter (in.)1 3/4 in.
Header ColorSilver ceramic coated
Flange StyleStandard
Weld-UpNo
Collector AttachmentBall and socket flange
Collector Diameter (in.)3.00
Collector Reducers IncludedNo
TunedNo
Primary Tube Gauge16-gauge
Flange Thickness (in.)0.38 in.
Bolts/Studs IncludedYes
Gaskets IncludedYes
Crossover Pipe IncludedNo
Catalytic Converter(s) IncludedNo
Motor Mounts IncludedNo
Transmission Mount IncludedNo
QuantitySold as a pair.
NotesFits manual steering or aftermarket rack and pinion with 4-speed or C6 transmissions.

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