Is buschurs muffler delete pipe a.k.a "Test pipe"?
Thread Starter
Evolving Member
Joined: Nov 2004
Posts: 181
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From: Eglin AFB, FL
Is buschurs muffler delete pipe a.k.a "Test pipe"?
Also i was wondering if the evo's run efficently with out both the cat and muffler? Im not really worried about emissions and want to get the most out of a custom exhaust.
