Muffler/Silencer
Catalysts can last well over 100k miles, and USA track people have not found
premature failure through overheating (indicating high quality). Their price is
around £300 from Mazda UK Main Dealers (93-V6), and £100 from the aftermarket.
Clogging is rare, but not impossible - the car will struggle to accelerate even
to 40mph.
Last Upload: 31st January, 2002. V1.50a
Exhaust Failure Mode
As with many cars if subjected to frequent cold stop/starts and heavy winter
salting, the rear-box failure point is where the engine-side exhaust pipe enters
it. A replacement is circa £220/300$US (less from Roebuck Mazda, USA).
Exhaust Replacements
A common replacement state-side is the Borla unit, of heavy guage T304
Stainless Steel, with high quality welds & hangers. US prices are around 350$US
from the catalyst-back (replacing resonator/S-pipe/rear box) with a lifetime
warranty and sound very like stock. Fitment is for 93-95 V6/I4 cars, with
OBD-II cars requiring a short extension pipe (catalyst movedcloser to engine
for better first 15-seconds emissions). Environmentally, a stainless exhaust
is a fit once for life.
URL: http://homepage.ntlworld.com/dorothy.bradbury/probemx/p_ws3.htm