Constructed from polished T-304 stainless steel, the DC Sports 4-2-1 One-Piece Header maintains a high standard.
DC Sports headers are dyno tested resulting in maximum horsepower and efficiency. The one-piece header eliminates the two middle flanges making the header lighter and giving it a cleaner look. To help lighten up the heade...
Stainless Steel TIG welded 4-2 header. 4-6 wheel HP gains. 50 State Legal.
Comptech headers and exhaust systems are manufactured using CNC machined flanges and mandrel bent T-304 stainless steel tubing.
All Comptech headers have precision fit merge collectors and all joints are TIG welded for durability and appearance.
Comptech offers complete systems consisting of headers, B ...
Comptech Competition 4-2-1 Race Header
Long Tube Design for High RPM Flow.
Stepped Design for Increased Torque Gains.
Ideal for Road-Racing and All Motor Drag-Racing
Race Cars with High Lift Cams and High RPM Rev Range.
2.5" Collector for better flow.
The Comptech Race Header Eliminates Catalytic Converter
and bolts to Cat-back Exhaust with adapter
or Comptech Competition ...
DC Sports 4-into-1 and 4-2-1 header systems are dyno tested to outperform all comparable header systems on the market. Extensive research and development goes into each system to ensure the best performance for your vehicle.
DC header systems are precision bent on our CNC mandrel benders using data acquired from our non-contact digitizing scanner. Our flanges are CNC machined, we machine-...
DC Sports 4-into-1 and 4-2-1 header systems are dyno tested to outperform all comparable header systems on the market. Extensive research and development goes into each system to ensure the best performance for your vehicle.
DC header systems are precision bent on our CNC mandrel benders using data acquired from our non-contact digitizing scanner. Our flanges are CNC machined, we machine-grind ...
HKS Cast Iron Turbo Exhaust Manifolds are available for custom turbo kits on select turbocharged & naturally aspirated vehicles. These high quality cast units offer great flow characteristics and durability for mounting turbos & wastegates....
Megan racing headers are made with T-304 stainless steel, Mandrel bent tubing, CNC Machined Flanges. Each set is tested and dynoed to make sure the fitment and performance meet our goal. Each header comes with 1 year warranty.
Spec:
- 4-1 1 piece
- 2.5" outlet
- T-304 Stainless Stee with Polish finish
- Direct bolt on, gain more performance due to more air flow
...
This product has been developed in response to considerable demands for a balance between peak power and torque.
In its development, Spoon Sports has implemented all possible combinations of pipe diameter, assembly rotation, and other similar factors in exhaustive engine-bench, flow-bench, and actual driving tests.
Spoon Sports Header Furthermore, without any reduction in low speed ...
With a displacement volume of 1,600 cc, considerable praise is afforded to the 4-2-1 type of layout characterized by relatively low torque in the low speed range. In accordance with this, and with our testing and past experience, we can recommend the combination of this exhaust manifold with the genuine-part 2in1 component. All of Spoon's exhaust manifolds employ the "far"-insert production method...
This competition exhaust manifold is developed based on data acquired from competition and continual engine dyno bench testing. It is designed to extract every bit of horsepower from a modified normally aspirated K20A engine. With increased power output through out the entire rpm range, this exhaust manifold improves both midrange and highend power.