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Ok so I have a 2014 q60 and I had a Top Speed Pro 1 axle back on it for about 9 months. As time went on, my Rpm's would drop when I stopped(mostly abrupt stops) and when I would turn into a parking space. It would even stall from time to time. The longer it was on, the louder and more sloppy sounding it got. So I put my stock one back on. No stumbling, smoother acceleration and no stalling. The top speed exhaust had no leaks. Do our cars just hate canister style mufflers?
Your right, they hate that too.But even when I cleaned both of the above mentioned, it still did it. As soon as the stock muffler went back on, those issues were gone. Very strange.
Well, if you are increasing the outflow, you need to increase the inflow.
To fix the problem with your axle-back, you'd be wise to install forced induction. FI solves most problems like magic.
That's a naked attempt to push an agenda. Thousands of Gs have only exhaust changes that run just fine. I still think there's something wrong at the front of the car.
Don't get me wrong, it didn't happen alot, I just noticed that it didn't happen at all once I put the OEM muffler back on. The car runs perfect, smooth as silk.
03-15-2019, 11:44 PM
