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Invidia Gemini 80mm Full Titanium Exhaust (Part# HS17CTRTG3ST) - Civic Type R (FK8)

If you own an FK8 Type R, you know the factory exhaust is a bit restricted and frankly, a bit too quiet. You’re not just buying an exhaust here; you’re dropping a massive amount of weight and opening up the flow for the K20C1 engine. The Invidia Gemini Titanium Exhaust (Part# HS17CTRTG3ST) is the gold standard for guys who want the best performance without the massive bulk of stainless steel.Since this is full titanium, it’s insanely light compared to the stock system. We’re talking about a weight difference you can actually feel when you’re cornering. It uses an 80mm piping diameter, which is exactly what you need if you're running a bigger turbo or just want to let the engine breathe better during high-boost pulls. And the sound? It’s deep and aggressive, but Invidia tuned it so you don't get that "tinny" vibration that comes with a lot of cheaper titanium kits.

features & why it’s worth the upgrade:

  • full titanium build: it’s not just "titanium tips." the whole system is titanium, making it featherlight. you’ll be surprised how much weight you shave off the back of the car.
  • 80mm piping: the larger diameter means way less backpressure. your turbo will spool a bit better and the car will feel punchier in the mid-range.
  • the sound: it’s got that signature titanium growl. it’s loud when you’re driving hard, but it stays surprisingly civil when you're just cruising.
  • premium finish: that burnt titanium look is pretty much the cleanest thing you can put on the back of an FK8.

vehicle fitment

  • car: 2017+ honda civic type r (fk8)
  • fitment: this is a bolt-on kit, designed to work with the factory hangars and mounting points.
  • note: because this is an 80mm exhaust, it’s meant for guys who are serious about performance.

common stuff you guys always ask:

is it really that much lighter than the stock exhaust?
it’s night and day. you’ll notice the difference the second you pick up a box. if you’re trying to build a track-focused fk8, losing this much weight off the rear is a huge win.
will i get a check engine light?
this is a cat-back system, so it shouldn't trigger a check engine light. you’re using the factory catalytic converter (or your aftermarket downpipe/front pipe setup). if you mess with the downpipe, that’s when you need to worry about tuning.
is it too loud for a daily driver?
if you want a totally silent car, stick to stock. but for a titanium exhaust, the Gemini series is actually pretty well-mannered. you’ll definitely hear it, but it’s not going to blow your eardrums out on the highway.
is the install hard?
it’s a full cat-back, so it’s a bit bigger than a simple axle-back. you’ll want a lift or at least some good jack stands. just be careful with the titanium—it’s strong, but you don't want to be dragging it across concrete while you’re trying to bolt it up. 

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