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12-24-2013, 12:24 PM
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#1 |
 ULTIMATE
Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
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That looks great. Is there an advantage on this motor of 4-1 over 4-2-1, or is it a cost decision? (those collectors can be pricey)
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Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific. |
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12-24-2013, 02:35 PM
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#2 | |
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Drives: 2015 H Production Yaris Join Date: Oct 2009
Location: Debary, FL
Posts: 1,953
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Quote:
 What I will say is based on the info I got the only reason you would good with a tri-y is packaging, two pipes often fit better than four.
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2005-2008 SCCA Solo BS National Champion 2017-2018 SCCA H Prod National Champion 
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12-24-2013, 02:36 PM
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#3 |
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0-60 in slow
Drives: light blue liftback Join Date: Aug 2009
Location: so cal
Posts: 926
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4-1 is better for torque up top vs a 4-2-1. A 4-2-1 is really difficult to get correct as there is a lot more information as it creates 2 torque curves.
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