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DOC Race Mazda RX-7 93+ Exhaust Manifold

$845.00
SKU: 
DOC-13B-MVR
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Features

DOC Race manifolds are built in house by our highly trained and skilled fabricators who have years of experience. Our manifolds have been known to make over 900whp and are sold worldwide. Many manifolds have been sold to to racers across the country competing in NHRA and BOTI SFWD class. We only use high quality 304 stainless steel tubing with thick wall to insure absolutely no cracking or warping even under high horsepower applications. We custom make our own collectors which over the years have been developed with lowest angle possible. This produces minimal exhaust turbulence which equals fast spool and high horsepower capabilities. All manifolds go through a major port and polish job to guarantee the absolute highest flow possible. Our porting process has been dyno proven over and over again to reduce lag as well as aid in peak power.

Our rotary turbo manifold is one of the best on the market. It is completely equal length and runner size is matched with the rotor housing perfectly. Runner length and size was developed through years of r&d and dyno tuning to finally find a perfect match. It is twin scroll which is proven to help with spool and increase top end. Entry into the manifold has no bends which increases flow right out of the motor. Entry into the turbo is also a straight shot without any bends which also significantly increases flow. Runner length is very important on a rotary motor and we have tested many different manifolds. Our rotary manifold will make an easy 600whp and is capable of making 700+whp.

»93+ RX7
»(will work on 86-91 chassis with some modification to wastegate)
»Tial 44mm wastegate

**ALL DOC RACE MANIFOLDS ARE SPECIAL ORDER, AND ARE BUILT TO ORDER IN THE USA AND TAKE 1-3 WEEKS TO BUILD**

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