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| Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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08-21-2017, 12:58 PM
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#1 |
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Join Date: Feb 2017
Drives: Red Scion Frs
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2.5 inch front pipe and over pipe to 3 inch catback opinions (Please give your advice
Alright guys so I have a tomei UEL header and am looking to go with VDS front pipe and over pipe combo which I've head on a few cars and sounds mean! I was thinking greddy evo gt catback to go with it but I didn't think it made sense to go 3 inches after starting at 2.5. Problem is, my car will have an edelbrock super charger thrown in it by the beginning of the new year and the goal is 300 to 350 hp. Can I keep the exhaust 2.5 inches and still get there or will I lose significant power? I will also be putting different fuel injectors. Also will greddy evo gt catback scrape when I lower my car? It seems to hang very low in pictures and that worries me.
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08-21-2017, 01:38 PM
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#2 |
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Senior Member
Join Date: Jul 2015
Drives: Late 2014 Subaru BRZ
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2.5" can flow just fine with those numbers. Just deleted the cats and resonator to remove any flow restrictions.
__________________
2014 Subaru BRZ
FBM Turbokit: GTX3076R - ECUTEK HRI FlexFuel tune - FBM 3" Turboback Exhaust - 550cc Injectors - Walbro 485 Fuel Pump - 4bar Map Sensor - FBM Oil Pan - ACT SB7-XTSS - AMSOIL all fluids - Forester XT Oil Cooler - Cusco engine, trans mounts - Whiteline rear differential bushings - Perrin shifter bushing - Firehawk 235/45/17 - AEM Failsafe |
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08-21-2017, 01:40 PM
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#3 |
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Member
Join Date: Feb 2017
Drives: Red Scion Frs
Location: Lutz, Florida
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It will be super charged by the beginning of next year. I am think ahead and curious if being 2.5 will reduce my hp gains by a lot
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