It usually holds true that replacing factory exhaust manifolds with tubular headers reduces airflow restrictions out of the engine and therefore increases overall efficiency and power.
It usually holds true that replacing factory exhaust manifolds with tubular headers reduces airflow restrictions out of the engine and therefore increases overall efficiency and power. Badly engineered headers, however, might add peak power but they can also give it away at other engine speeds.
JBA Performance Exhaust has long been a favorite of enthusiasts, creating well-engineered products — not cheap products — for vehicles that few others seem to bother with. JBA is one of the first to build exhaust headers for the optional 382-horsepower 5.7-liter V8 found in the Toyota Tundra pickup. Already a stout engine, the V8 is claimed to pick up 20 rear-wheel-horsepower (which equates to about 25 if measured at the flywheel) and 20 pound-feet of rearwheel torque. At $714 (list price) the Tundra headers aren’t the cheapest on the market but they’re a direct bolt-on, smog legal, won’t void factory warranty (according to JBA) and are constructed of stainless steel for long life.
No muss, no fuss and no headaches. Sounds like money well spent to us. Visit www.jbaheaders.com or call the San Diego, Calif., company at 619-229-7797.
Do you have an auto-related product the world should know about? Please send your information via our Web form at www.wheelbase.ws/mailbag.html.