Quote:
Originally Posted by L78toLT1
My maggie does not rattle at all but your car does sound like it's idling a fair amount lower than mine. My buddy just installed a whipple on his '16 Silverado 5.3. His does not rattle either. I'm betting you will be good to go with a slight idle rpm bump.
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Yeah that is exactly what I think the issue is. The car is idiling to low. If I raise the rpm it goes away. It's idiling around 500rpm which is causing the bump back -n- fourth sound in the gear case.