This RAGE downpipe / Front pipe is designed for the 2002 onwards version 8 WRX and STI. It is mild steel and 76mm diameter. Twin scroll turbo fitment only. Part number BB3117 (part of the complete BB9054 and BB9055 exhaust systems). Designed to fit the RAGE exhaust system.

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Hybrid GT2 spec intercooler kit - Legacy BL5 GT B4
Turbosmart FPR2000 fuel pressure regulator
4G63 Turbo dump pipe EVO 4-6 Kinugawa
4G63 Turbo dump pipe EVO 7-9 Kinugawa
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SR20 turbo dump pipe S13, S14 T25 atmos venting 