Racing Beat Power Pulse Connecting Pipe (1990-1995)
Applications Mazda Miata
Part Number 56437

Power Pulse Connecting Pipe
1990-95 Miata

A Power Pulse Connecting Pipe is required with our Power Pulse muffler assemblies for proper fitment. The Racing Beat Power Pulse Connecting Pipe is constructed with 2.375-inch OD (60mm), stainless steel tubing with and uses cast stainless-steel flanges for positive gas sealing. This connecting pipe incorporates a pre-silencer that has been tuned to provide our Power Pulse Mufflers with an aggressive, deep exhaust note. A gasket is supplied for the connection of the muffler to the connecting pipe. To view a larger photo of this connecting pipe, click here.

If you prefer a slightly louder exhaust note for your Miata, you may want to consider the use of our Sport Connecting Pipe. This connecting pipe is produced from a length of steel tubing and does not include a presilencer.

Test Parameter
We used our 1990 RB Miata (1.6 ltr) in this test. The car is equipped with a RB High Flow Intake, 4:1 Header, and Power Pulse muffler. The different connecting pipes were installed and the car was lowered to the ground prior to testing. Using a handheld decibel meter, a sound level measurement was taken at a 45 degree angle, approximately 18” away from the muffler tip, The measurements are as follows:

Power Pulse Pipe (with presilencer)
Idle: 74db
3000 RPM: 82 db
5000 RPM: 87 db

Sport Pipe (without presilencer)
Idle: 75db
3000 RPM: 89 db
5000 RPM: 92 db

(Legal limit for California is 95 db.)

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