Hi all, I have a beautiful 2012 abarth 500 which drives like a dream...till 3 weeks ago where I lost boost pressure. Looked under the bonnet and found a split pipe which I repaired. The boost gauge is still not going up and the engine sounds deeper with less pops and bangs. Took it to a turbo specialist who did all the smoke tests and readings and they found no issues, still the boost seems restricted and doesn't go above 0.6 / 0.7. At a loss what to do now , any ideas?