Exhaust

This CARB-compliant catalytic converter kit fits the Rocky Mountain Westy stainless steel exhaust that we manufacture for Subaru conversions.  Perfect for replacement or upgrading your van or bus to CARB-compliant state regulations. Fits both...

Retrofit kit for our Subaru conversion exhaust system utilizing our new Stealth stainless steel muffler. If you have an older Rocky Mountain Westy Subaru conversion with a straight-through Magnaflow muffler, this Stealth retrofit kit is what you need to...

The two words that best describe RMW's Stealth muffler for Subaru conversion is “Stealthy Quiet". As quiet as many stock Subaru mufflers, the Stealth muffler series also offers incredible flow for a chambered muffler. Many chambered mufflers have...

This high quality Magnaflow muffler is a direct replacement for early Rocky Mountain Westy Subaru engine conversions.  If the inlet and outlet of your muffler are on the same plane rather than offset, this is the muffler for you. If your RMW...

This exhaust heat shield kit fits the Rocky Mountain Westy Subaru conversion when using a 1995-1999 Dual OverHead Cam Subaru engine as a donor.  This heat shield bolts to the Subaru timing cover and serves to mount the muffler/catalytic...