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Why are you convinced you DON'T want a cat? Yes, an open exhaust will allow for more power but as mentioned it can also lead to boost creep by overwhelming your wastegate. And a boost controller will NOT help for creep, only porting the wastegate (requires pulling the turbos) or keeping a cat. A resonated mid-pipe MIGHT help, but I have no experience with them so I'm not sure. They do cost more and I think you want to get one that has a proven record with the higher exhaust temps of a rotary.
Keeping a cat, preferably a hi-flow cat, has other advantages too. It helps quiet the car to a level where a stereo is functional. It also keeps the fumes from making your eyes water and smelling like a monkey's ass at high-noon.
And please, enough with the self-flagellation in your posts. It's just wierd. Ask a straight question and I'll (we'll) answer it if we can.
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Jim
VR R1 FD
Last edited by Signal 2; 12-03-2011 at 06:12 AM.
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12-03-2011, 06:05 AM
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