03/11/2026
Throwback to a car we built mufflers on a few years back. A super tidy Mazda cosmo 20b rotary fire breathing dragon.
The car had an AES Dump valve fitted up the front to give some extra flow, but mostly to have a nice, loud, party mode for the exhaust. Needing a street-able exhaust for everyday driving, we supplied to big ovals for the rear to tame the angry rotary. Boy did they make a difference…..
Still making full power, and a free flowing exhaust, our mufflers provided a nice and quiet exhaust for driving around all day everyday.
A bit of fire alongside a HOT rotary exhaust is not issue for our mufflers, built tough to withstand the extreme conditions of a rotary exhaust.
Fast forward over 4 years, the car came back past the shop to get some work done next door, and as expected the mufflers are as good as the day they left.
Sick of ridiculously loud exhausts, or burning through sub par mufflers? Buy once, cry once SP Mufflers
