Engine issue????

[Musicman_94]

Hello,

So today I was accelerating to get on the freeway and I noticed that it sounded like the engine started to rumble on high acceleration. Anyone deal with this issue before? I checked with a mechanic and they checked my spark plugs and said they were fine. Also no codes showed up so I’m not sure what could be the issue.

 

[Musicman_94]

Forgot to say I have an mbrp exhaust, bms intakes and a catch can. That’s pretty much it.

 

[Snicklefritz]

check all of your aftermarket exhaust fittings. I saw a mustang yesterday and the left downpipe was two or three inches lower than the right one, easily scrapeable on a speed bump or similar. I could see it moving side to side too, very scary.