K&N
K&N High Performance Air Filters, Air Intakes, Oil Filters, Exhaust and Tuning
For over 50 years, K&N® has been an industry-leader in automotive filtration and technology—offering products to increase performance, protection, and longevity in thousands of vehicle applications for consumers worldwide. All K&N products undergo rigorous testing to ensure that they adhere to demanding quality standards. K&N stands behind their products with some of the most extensive warranties in the aftermarket.
Horsepower and torque claims are based on testing of an actual vehicle on a dynamometer before and after a K&N product has been installed. Horsepower/torque testing is performed on Dyno Jet 248 and SuperFlow 880E dynamometers, which measure actual brake horsepower and torque at the wheel(s) receiving power from the drive train.
K&N performs all airflow testing on a SuperFlow SF-1020 flow bench. The SF-1020 is a computerized flow bench capable of measuring airflow rates up to 1020 cubic feet per minute (cfm) at test pressures of up to 65 inches of water.
In addition to their world famous air filters, K&N manufactures air intake systems, air cleaners, oil filters, cabin filters, exhaust systems and tuning products. Accesspeed is proud to offer K&N products to our customers. With our low price match guarantee, you will always find the best combination of price and selection at Accesspeed.
Air Intake and Induction » Intake Manifolds
What is an intake manifold?
The intake manifold is the part of an engine that supplies fresh air to the cylinders. It works with the air intake, throttle body, and fuel delivery system to ensure the proper mixture of air and fuel is being burned by the engine.
What does a performance intake manifold do?
The primary function of a performance intake manifold is to increase air intake and more-evenly distribute the combustion mixture (or just air in a direct injection engine) to each intake port in the cylinder head(s). Even airflow distribution is important to optimize the efficiency and performance of the engine.
Do intake manifolds increase horsepower?
Aftermarket intake manifolds will increase horsepower and can change the rpm range at which the most horsepower is created.
How much horsepower does a manifold add?
Most people see a 15-20 horsepower increase with just an aftermarket V8 intake manifolds. If your vehicle has other aftermarket parts and/or modifications, you may see up to 30 horsepower.
Is a bigger intake manifold better?
An intake manifold designed with larger-area runners will improve the flow at higher engine speeds, but may also slow the filling of the cylinders at lower engine speeds. Longer runners will sometimes impact the power and torque production at lower engine speeds while shorter runners may move the peak torque rpm higher up.