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Old 10-03-2013, 10:22 PM
CdnoilRAM's Avatar
CdnoilRAM CdnoilRAM is offline
I push the skinny pedal


 
Join Date: Jul 2009
Location: Calgary, AB, CA
Age: 31
Posts: 17,229
Gender: Male
Vehicle: 2009 Blown 349 Hemi
Trim Level: Sport - Modified
Color: Brilliant Black/Snake Skin Green
Engine: 2009-2012 345ci (5.7L) Hemi V8 390hp 407lb/ft
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Rep:3277
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If you're going for performance, then it'd be foolish not to get LTs. If you want better flow for a lower cost, shorties are just fine. In the end it's entirely up to you what you do, however, LTs have the best gains over a broader rpm compared to shorties.

Another thing that gets some people is the difference between 1 3/4" vs 1 7/8" primaries. In this case, bigger is NOT better, and will hurt performance unless you physically need the extra diameter to flow more air. Standard bolt ons with a programmer does not constitute a need for 1 7/8 primaries. They should be reserved for supercharged, nitrous, or stroker applications, outside of that you slow down your exhaust velocity faster with 1 7/8" and start creating back pressure.
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