my car has been sounding like a Subaru when it came back from the mot, they turned the boost down without being able to explain it to me....when you drive it feels like its stuttering.
Anyway car engine sounds ok and car seems ok but when driving sounds like the exhaust is putting....checked all hoses and exhaust clamps but found this on my down pipe which wasnt there before it went for the mot...





would this be the cause of my car sounding and feeling like its stuttering when driving