RCU Forums - Aviastar 53, OS compatile muffler pattern?

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AraTidwell

03-22-2011 08:17 PM

Aviastar 53, OS compatile muffler pattern?

Does the Aviastar 53 have an OS compatible muffler pattern? I'm looking for OS 55 alternatives for 3d response and power on commonly aviliable tuned exhasut systems.

jeffie8696

03-22-2011 08:32 PM

RE: Aviastar 53, OS compatile muffler pattern?

The Aviastar muffler is about 1.48" center to center on the mounting bolts.

fredsedno

03-23-2011 03:19 PM

RE: Aviastar 53, OS compatile muffler pattern?

I have a Aviastar53. The bolt holes are .020 to .030[thousanths] out of line and are not interchangeable.
fredsedno

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