Originally Posted by
dscivicdx
integra type r and s2000 mufflers have 2.5" inlets and flow pretty well.
wrx mufflers are 2.5" also, but i dont know about flow rates for them.
The S2000 muffler is 2.25. I know the type r muffler is slightly larger than the S2000 muffler, but i dont believe its 2.50. Reason being that I have an S2K muffler on my car.
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