Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

Greddy manifold. ECU remap required?

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Old Feb 5, 2003 | 03:50 PM
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Car Info: MY98 Wagon. Whiteline, AGX, H&S, JDM 6MD DCCD, Exedy Hyper Single
Question Greddy manifold. ECU remap required?

http://www.crazytuning.com/catalog/p...roducts_id=255

Is it safe to use this manifold without remapping the ECU?
Old Feb 5, 2003 | 09:28 PM
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As with any aftermarket performance engine part, re-mapping the ECU is recommended. However, no harm will be done by installing this or any other manifold. You will just not see the MAXIMUM potential gain from it without tuning.
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