Designed specifically for strut type front end cars and dragsters, this kit allows you to fabricate your own headers to save money or make changes to the kit to fit your specific needs. These kits are assembled in the same jig used for the finished headers. Then, it is simply tack welded on all connections. If needed, you can cut a tack-weld to reposition the tube, or you can simply finish welding the kit and have the same header offered by Dynatech®.

• Mild Steel, Bare Metal

• CNC laser-cut flanges, gaskets, gussets and bolts included.

• Optimum port exit angle for added power.

• Collectors and star plugs must be purchased separately (see below.)

Dynatech High-flow Slip On Collectors are designed with maximum exhaust flow in mind. With a High-flow long transition area, these collectors maximize flow to help you get the most out of your exhaust system. Comes standard with a High-temp black painted finish and available in a number of different sizes.

• Mild Steel

• Length - 12”

• U-Tabs and Hardware Included

• O2 Sensor Bung and Pan E-Vac Adapter Included

Dynatech High-Flow Slip On Collectors are designed with maximum exhaust flow in mind. With a High-Flow long transition area, these collectors maximize flow to help you get the most out of your exhaust system. Comes standard Ceramic Coated inside and out. Designed with a unique Pan E-Vac / O2 Sensor bung. The bung installed in the collector has 18 mm threads, common to most O2 Sensors. For users that want to use a Pan E-Vac system, the kit comes with a fitting that adapts the 18 mm bung to pipe thread, common to most Pan E-Vac fittings. U-Tabs are already installed on the collectors for an easy bolt on to any Dynatech Header with no welding required. Extra U-Tabs and hardware are also included for installation on header without U-Tabs installed.

• Mild Steel

• Length - 12”

• O2 Sensor Bung Installed

• O2 Sensor Bung to Pipe Thread Pan E-Vac Adapter Included

• Extra U-Tabs and Hardware Included

This star plug is used anytime you are installing a weld on collector. This part is required to seal up the area between all four tubes. One required for each collector.

• Mild Steel

Dynatech Merge Collectors are an excellent way to maximize the potential of your exhaust system. The construction of a merge collector is such that the change in area at the primary tube to collector transition point is minimized. This gradual transition allows the exhaust gas to maintain as much velocity as possible. Maintaining gas velocity is the key to allowing the exhaust system to reach its efficiency potential. Designed with a 15 degree merge angle and comes with a High-temp black painted finish. In order to realize the full potential of a merge collector, dyno testing is recommended.

• Mild Steel

• U-Tabs and Hardware Included

• O2 Sensor Bung and Pan E-Vac Adapter Included

Dynatech Merge Collectors are an excellent way to maximize the potential of your exhaust system. The construction of a merge collector is such that the change in area at the primary tube to collector transition point is minimized. This gradual transition allows the exhaust gas to maintain as much velocity as possible. Maintaining gas velocity is the key to allowing the exhaust system to reach its efficiency potential. Designed with a 15 degree merge angle and comes with a High-temp black painted finish. In order to realize the full potential of a merge collector, dyno testing is recommended.

• Tube Size - 2.250”

• Outlet Size - 4.000”

• Mild Steel

• U-Tabs and Hardware Included

• O2 Sensor Bung and Pan E-Vac Adapter Included

Dynatech High-Flow Weld On Collectors are a great way to achieve that smooth looking header. Designed with the best exhaust flow in mind, utilizing a High-Flow long transition area, these collectors help maximize airflow. These collectors are an excellent way to save money when building your own header kit, by eliminating the use of collector tethering devices.

• Mild Steel

• Length - 12”

• A Star Plug Is Required

The Dynatech O2 Bung/Pan E-Vac Kit is an excellent way to increase horsepower by reducing crankcase pressure. This kit has shown to pull as much as 3 inches of vacuum on a typical bracket engine. An added feature to this kit is the ability to use an O2 sensor or Pan E-Vac setup. The bung included has 18 mm threads to accept common O2 sensors. The adapter included in the kit has 18 mm threads on one side and 1/2 pipe threads on the other. This allows you to insert the 18 mm threads into the bung while having pipe threads on the other end to attach most Pan E-Vac check valves. This kit comes complete with angle cut bung, threaded adapter, threaded plug and copper washer. One kit required for each collector.

You can purchase the kit or separate items if you do not need everything. Choose from the options below.