Just installed top speed headers on my 91 after replacing 4 exhaust bent valves... long story. But I did notice some small amount of flexion, 2-3mm on the front header runners below the oil pan, is that normal? The car hasnt been started yet, still need to finish changing all the small hoses on the upper side of the engine. BTW fitting of the headers was spot on apart from the necessary front crossmember notching, all matched up to the OEM cats and the Dali catback.
Header runner flexion??
- Thread starter PS172
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