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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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05-06-2020, 07:49 PM | #1 |
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Front pipe/over pipe question
So I’m looking to get JDL front pipe/over pipe combo. I’m not sure what size to get it in. I have a jdl header and a greddy sp 2.5 cat back. Eventually I do plan on going FI. Should I get the 2.5 or get the 3 inch piping?
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05-06-2020, 07:52 PM | #2 |
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If you're going supercharger just go 2.5 or if turbo it depends in my opinion. Maperformance turbo kit uses a 2.5 diameter downpipe. Ptuning turbo kit uses factory or aftermarket header.
Also while you're NA 2.5 all the way back will be more give more low end torque. Sent from my SM-N960U using Tapatalk |
The Following User Says Thank You to Joveen For This Useful Post: | Jmk91 (05-06-2020) |
05-07-2020, 07:03 PM | #3 | ||
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05-07-2020, 11:54 PM | #4 | |
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Yeah I have a tune, I’ve had one for a long time haha. I did the basic oft tune than I paid steve99 for a better tune. I was just wondering for my exhaust what route to go. Last thing I want to do later on is rebuy. I’d rather do it once and call it a day. That’s why I use quality products. I’d rather pay the premium than save a few to spend a lot more later on. As stated I already have headers and a cat back. Was just wondering for front/Op. |
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05-08-2020, 03:25 PM | #5 | |
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05-08-2020, 04:26 PM | #6 |
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anyway VVT can help recovering a bit of low end torque if going large with exhaust pipes diameter, by reducing overlap between valves
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