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Discussion Starter #1 (Edited)
Is it any benifit to make the downpipe shorter/longer on a twin billet 62mm 03 Cobra? Stock heads/cams. Downpipes are 3". I drive it on the street sometimes, so i was thinking about running it all the way behind the front seats at least and dumping it (no mufflers) But I won't if it sacrifices spool time or power. Thanks in advance.
 
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