Ironmb
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- #1
Had a shop install ARH catted headers on my 2019 mustang gt. All was well, until i got a bumpy highway, and now it clunks bad near the passenger side. I got home put the car on stands and checked the clearance... all looks okay, there is a tight fit where the collector comes and the frame, but i've tried to move the headers by smacking them with my hand and pushing them but i can't replicate the noise. I was thinkin the motor mounts could be loose, but checked those too... the shop who installed them are closed sunday.. trying to get some opinions.
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