i should imagine it has a small performance gain of maybe 1 -2hp over a regular induction filter. There more suitable to small normally aspirated hot hatches with crammed engine bays.For performance per pound its definately not worth the money.
A decent intercooler is the best thing you can do for the s12's intake system
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Originally Posted by s13eater
i wished my cams cost only £130 each, i must have c*nt wrote on my head 
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