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Evolution of Speed

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Evolution of Speed is proud to announce our Billet intake manifold for the B58 Engines.  Our manifold is designed to work with both Gen1 and Gen2 B58 engines.  The manifold is made from Billet 6061-T6 aircraft grade aluminum.  The end tanks start off at over 50lbs of material for each side and end up about 3.8lbs that's a lot of chips!  Like all of our products these manifolds are completely made in the USA.  All machining done in house  in our state of the art manufacturing facility.  

The manifold features integrated Port Injection, and Meth or nitrous bungs.  This means when you purchase the manifold there is no need to add a fueling spacer between the engine and the manifold.  The Injectors are now relocated to the topside, making them easier to service if needed.  In addition to adding more fuel, we have designed the manifold to accept a larger throttle body for those extreme horsepower cars!  We make our manifolds in house and control all aspects of the design.  If there is a feature you don't see, or would like added, just shoot us a message and we can customize the manifold for your specific needs.

We teamed up with C&R Racing / PWR to bring you the best core available in the industry.  Using a proprietary design we are able to provide a very dense core, at the fraction of the weight of a standard bar and plate setup!  The air to water core is over double the size of the standard core that is found on these engines. What does all of this add up to be?  Simple cooler intake air for your engine!

 Injectors, meth nozzles and Nitrous nozzles are all sold separately.


***This Item is for off road use only***

Returns Policy

--PLEASE NOTE: MOST ORDERS ARE SUBJECT TO RESTOCK OR CANCELATION FEE. PLEASE CALL OUR OFFICE FOR DETAILS AND EXCEPTIONS-- You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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