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BMW 3-Series (E90 E92) Forum
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have an exhaust question....
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| 08-18-2009, 05:58 PM | #1 |
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Private First Class
 
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have an exhaust question....
what are the advantages/disadvantages of being fully catless? power and performance wise?
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AA BOV//AA INTERCOOLER//CATLESS DP'S CUSTOM EXHAUST// JB3 V1.3// H&R SPRINGS// RR OCC
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| 08-18-2009, 06:06 PM | #2 |
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Captain
 
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catless- plainly put - more power, no restrictions, nicer exchaust note.
Cons- odor from unspent fuel. O2 sims required in the ECU, emissions inspection failure. |
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Appreciate
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