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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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Exhaust
Hi, looking for someone who’s actually done this before, I worry about having a bottle neck if I leave the stock over pipe in. I have a borla cat back coming, and I’m going to do Tomei UEL Headers and I don’t think I want to believe there really is going to be noticeable performance differences between stock and AM over pipe. Also, anyone have any good front pipe recommendations? My borla is 2.5 inch at that spot and I want a catted one.
Also, new maybe sort of Tag idea “Noticeable or Negligible?” For any performance part could be put under that sort of catalog |
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There will not be a bottleneck unless you're making a lot of power, you're fine.
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Turbo FR-S Build - Build Thread
JDL EL Recirc manifold, Boostlab BL58x Turbo w/ T51R, 17x9 ARC-8, IAG block |
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OP aren't a huge restriction. Not required but It's a "while you are in there" type of mod since you usually need the header out anyways to replace it. The stock front pipe kills a lot of rasp. Typically you want something higher end with high flow cat and a resonator to combat that.
If you are looking at tomei headers consider gruppe-s while you are at it. You could grab their header and OP for the same price as tomei header by it self. All made in the same factory, and near identical runner design. |
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Tags |
borla, catback, exhaust, front pipe, over pipe |
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