JBA has been building and testing headers for the LX platform since it was introduced in 2005. With this experience their engineers were familiar with the design and flow characteristic of these cars and knew what the engine would respond best to. The engineering team at JBA addressed the critical short comings of the 3.5L''s exhaust manifolds with a fresh design that started with high flowing 1-5/8" mandrel bent stainless steel tubing. By giving each cylinder a smooth unrestricted path, back pressure is reduced and flow goes way up. Other standard features like thick 3/8" CNC laser-cut flanges, O.E. style JBA sealing dome connection to the exhaust and reuseability of the factory hardware make them a highly effective and inexpensive upgrade for the 3.5L engine.
Features:
- 3/8" thick laser-cut single piece flanges
- 1-5/8" 409 stainless steel primaries
- JBA sealing dome connection with exhaust
- Direct bolt-on installation
- Will not void factory warranty
- 50 state smog legal
Benefits:
- 9 HP increase & 17 rwtq throughout RPM range
- Improved throttle response
- Reduced back pressure
- Reduced under hood temperature
- Increased passing power
- Increased low-end torque
- Makes engine more sensitive to other modifications (intake, chip, supercharger, etc.)
- Improved engine compartment appearance
Optional: We also sell replacement exhaust gaskets if you feel more comfortable replacing the exhaust gaskets with new OEM gaskets when you install these headers. It is not required due to the high quality of the factory gaskets but for many it is added assurance against header leaks. Check the links below for the gaskets
