Quote:
Originally Posted by bryan_Z34
Exactly! Why the hell
Do people keep insisting I am loosing power and torque from taking off my mufflers from my cat back
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They are insisting that you are losing low down torque due to the loss of back pressure from having no restrictions, such as cats, and a larger pipe diameter, which would increase flow. A tune would correct the A/F and bring some of that lost power back.
As for consequences, if you were really lean it could cause detonation and damage your engine. I doubt that's happening though. The ECU will compensate as much as it can.