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I agree with what brusk said. I have 3" pipes on mine just because I was able to get a good set with perfect fitment for a good deal.
I have noticed no decrease in low in torque or power. Just faster spool, more sweet noise and a good bit more power. Getting rid of the cat is the biggest difference going for you, not the 0.5" difference in pipe diameter.
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Current: E82 AW/CR 135i FBO+Meth+E30, '95 Cosmos M3, '99 AW MRoadster, '88 944 Turbo S - 401rwhp/429ftlb
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