S4? or S5?
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S4? or S5?
Is a 1991 mazda RX7 convertible considered an S4 or an S5?????
Need to know for exhaust purposes. I bougght the RB header collector Presilencer and catback system for it. Hoping for mnore horse power and a louder throatier sound
Need to know for exhaust purposes. I bougght the RB header collector Presilencer and catback system for it. Hoping for mnore horse power and a louder throatier sound