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Discussion Starter · #1 ·
i just did a quick search but does anyone have a link or know the different types of headers that are out there for an IS, and how much of a power gain each of them make. thanks.
 

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how much rwhp should i expect with toyo header, toyo exhaust. i plan on getting the injen intake with the safc.
 

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HUSTLER said:
how much rwhp should i expect with toyo header, toyo exhaust. i plan on getting the injen intake with the safc.
do you have auto or manual?
 
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