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| Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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06-14-2013, 12:18 AM
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#1 |
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Stock manifold changing collector
im planning to change the Overpipe to (Motiv2.5/63mm), im using aftermarket (catback2.36/60mm) with (catless downpipe2.36/60mm)
since ther is no an aftermarket overpipe size of 2.36/60mm. im just warry of losing Power in low range or high because I heard large to small piping not worth it. and may result in bad power/TQ.. 
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06-14-2013, 12:31 AM
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#3 |
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header54mm+overpipe63.5mm+downpipe60mm+midpipe60mm +axleback60mm tips101mm=Lose Power??
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06-14-2013, 12:38 AM
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#4 |
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Exuse me But I want A Pro dyno tuning guy have some experinse with that
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06-14-2013, 11:20 AM
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#5 |
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SomeBody Anybody..help me on that
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06-14-2013, 12:57 PM
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#6 |
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NASA SpecE30 Racer
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Dude you are talking about less than a 1/4 of an inch (because Merica) difference here. That is very negligable and you don't need to worry about it. There are tons more places to find power and worry about than this.
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06-14-2013, 02:04 PM
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#7 |
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get the motive over pipe and the motive front pipe,.. they are both 2.5" then sell your existing 60mm front pipe if your worried about it.
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06-15-2013, 03:23 AM
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#8 | |
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Quote:
throw it no nearly garbage
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