I have heard that with one chamber flowmasters on a 98GT you loose hp due to the lack of backpressure. Is this true? If it is, what is the best muffler for sound and power?
Originally posted by BosettiStang
I have heard that with one chamber flowmasters on a 98GT you loose hp due to the lack of backpressure. Is this true? If it is, what is the best muffler for sound and power?