i have a volvo 850 t5 had a hybrid turbo put on with better exhaust manifold down pipe de cat re map injectors turbo intake pipe and a brand new rip kit after a few months the boost had dropped from hitting 20 psi to only hitting 18.7 now its only hitting 18 so i think its still dropping more boost what can cause this the rip kit is new so i dont think its a boost leak through a join. could it be actuator related or possibly engine wear? i really dont have a clue im no mechanic i would appreciate any help guys
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