Reply To: coolant in a 12

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A typical symptom of a restrictive or plugged exhaust system is smooth rpm limiting loss of power. We are seeing this a lot with cat. converters plugging up in modern cars..

Unless you are feeling like the car is pushing against ferocious head wind, or constantly climbing a hill when actually on level ground.. I doubt that a marginally undersize exhaust system is causing overheating.. it’s possible, but a remote chance..

Is the muffler a straight through design or a bypass design ?? It’s pretty hard to clog up or restrict a straight through muffler. If it’s a bypass design I’d replace it anyway.

Greg Long