Quote:
Originally Posted by ///MPECABL
Could possibly be a blown out cat clogging the exhaust path… Good suggestion to take a look at the exhaust path. Seems like the front of the combustion process seems pretty well gone over.
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When there is an obstruction in the exhaust the sound decreases a lot, I ran into this problem, the turbo did not reach the required boost and with catless sounded less than originally with cat.