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Using a flow bench has been an eye opening experience. Don't let anyone tell you they can get an increase of airflow out your head or intake manifold with out the aid of a SuperFlow® bench - it's not going to happen. In fact, in most cases I have actually seen a decrease in air flow from the heads I have tested that were done by others without the aid a flowbench. My flowbench is a SuperFlow® 600 model, allowing me to get maximum flow out of all my heads.

Aside from offering competitive prices, there are many reasons to choose DH-Racing over other similar companies. 1. Superior customer service. E-mails are responded to within 24 hours. 2. All orders are shipped in a timely matter. Tracking numbers are provided automatically through paypal to all buyers to keep you updated on your shipping status. 3. After sale assistance. Being a DH-Racing customer entitles you to our experience and expertise - we want you to be successful. 4. Unique products. If there is something you cannot seem to find, most likely we can either get it, make it, or have something already for you. 5. Our SuperFlow® 600 FlowBench. Flowbench testing is REQUIRED to make more airflow and hence, more power. Anyone that tells you otherwise is not being truthful. Improper port work will actually reduce airflow and likewise reduce horsepower. Every head we work on is tested with a SuperFlow® 600 FlowBench to guarantee maximum results.