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we tested several designs which include a square to tapered manifold which unfortunately didn't work and then our Gen2 design finally got the go ahead after month's of testing
identical to the ones we are fitting onto our project SiCo-Boost
Most of all
1 Eco Boost
Forge Focus RS Mk2 Induction Kit HKS we tested several designs whichThis Induction kit has been developed for the Ford Focus RS MK2. Whilst the original intake system proved to be very efficient, we were able to make an improvement by combining a low resistance filter capable of flowing a high volume, sited to maximise cold air, along with a tuned inlet tract. On our test vehicle we gained 9 hp over the original air box with no other modifications. With software tuning and an uprated intercooler, greater gains will be