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boost leak

  1. Technical Questions
    Hi all, I have an evo 5 which has a misfire under load in 3rd,4th and 5th gear. I’ve spent the last few days reading posts in the forum and the general consensus is to replace plugs, (gap them correctly) and if still not resolved then replace coil packs. I’ve been using the bpr8es plugs for...
  2. Technical Questions
    Right then, Bit of a problem after a spirited drive i have an issue. Under high boost and hard acceleration the car is juddering but if i accelerate slowly i it will reach full boost (1.2) ive changed the majority of vacuum hoses and its still happening getting it in tomorrow for a boost leak...
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