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High Flow Full 3" O2 Housing for Evo 4/5/6/8/9


High flow full 3" O2 housing for Evo 4/5/6/8/9. Deletes the factory donut gaskets to eliminate the 2.5" restriction between most O2 housings and downpipes and creates a true 3" all the way through flow-path from entry to exit.

Works fantastically well with large stock location turbos with large turbine wheels. This eliminates one of the biggest bottlenecks in the Evo exhaust system.

Also, 02 bung is strategically located away from the direct exit of the turbine wheel to avoid additional restriction and turbulence.

Please note that we advise that you use a mating downpipe that has an integrated flex bellow after deleting the donut gasket. This will ensure vibrations and engine movement during driving is properly absorbed to avoid stress damage to other parts of your exhaust system.


  • Note: Products sold through this website that do not bear the Exoticspeed Brand name are serviced and supported exclusively by their manufacturers in accordance with terms and conditions packaged with the products. Exoticspeed Limited Warranty does not apply to products that are not Exoticspeed-branded, even if packaged or sold with Exoticspeed products. Please contact the manufacturer directly for technical support and customer service.
  • Warranty: One year
$249.00 USD
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