The new A5301 evoair intake system offers a shorter, more direct and totally unrestricted air intake pathway to the throttle for the VW A5 Rabbit and Jetta cars with the 2.5-liter DOHC 20V 5-cyl. engine. Through the elimination of sound-deadening bottlenecks and sharp turns found in the stock intake system, plus key design features exclusive to the A5301, it is now possible to breathe cool outside incoming air with maximum available air velocity for a genuine ramming effect that you can feel.

Among the main features, the A5301 offers a true bolt-on design that does not require any permanent modification to the vehicle. A premium-quality K&N® X-Stream-brand air filter with a built-in velocity stack was chosen to achieve a strong and fat incoming air velocity profile and pulsation signals. An especially-designed, powder-coated, 16-gage steel heatshield serves as a flexible support for the intake system, as a thermal barrier isolating the air filter area from the hot region of the engine bay and finally, as a guide to divert high speed incoming air to the air filter through the vehicle's front grill opening. A totally custom-built high-performance 4-ply authentic silicon throttle hose completes the package with aluminum CNC-machined same-as-stock-profile couplings that receive and securely lock in the air pump hoses for a leak-free operation always (see picture below of the throttle hose with the aluminum couplings installed). The silicon hoses are available in Blue, Red and Black. Please note the special part number designating each color when ordering.

Tested early in 2007 in one of industry's toughest dynamometers  (Dyno Dynamics Chassis Dynamometer), at Engine Logics in Houston, TX, the A5301 evoair intake produced at the wheels, a maximum gain of 7hp (at 5000rpm) and 10 ft/lb of torque (at 3700rpm). What is more remarkable is that the measured stock peak torque (145 ft/lb) that was originally available only from 3600 to 3900 rpm, now can be tapped at 2750rpm and lasts all the way thru 4900rpm for a very usable torque band. Measured max. torque of 155 ft/lb is achieved at 3500 thru 4000rpm. See the chart below for complete dyno results..

The dyno testing session was conducted by initially measuring the car without any other modification and 87 pump gas, only the engine management memory was cleared of any adaptation that could influence the results. 3 runs were made. Then, the A5301 evoair intake was installed and again, the computer's memory was cleared. 3 runs were also carried. The results are shown in the graph above.

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NOTE: For international customers (outside the US), please email us your order BEFORE sending money, so shipping costs to your country can be estimated. Thank you.

All rights reserved. Evolution tuning, Inc. 2007. Updated March31st 2008.