Why not send the TD04 to Blouch for $350 and have them rebuild it, and port it, put a better compressor on it, and turn it into a 19T turbo. That way you still have the great spool up time, and you get more top end power without dying off. That's what I would have done, but I went TD05H-18G
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2005 Subaru Impreza WRX
Slowboy Racing, Perrin Performance, Cobb Tuning, Invidia, Subaru Tenica International, and eBay

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