Thread: STS engines
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Old 01-07-2004, 06:11 PM   #136
SirioInside
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Join Date: Jan 2004
Location: NJ, USA
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I bought the STS ajustable pipe for my sirio .12 turbo. I used the 6mm opening. I dont know if i would say it improved but it was definatly differnet than stock. Killer top-end! Pretty durable too. Nice construction.
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