HKS Legamax 75mm Exhaust System for 17-21 Civic Type R

HKS Legamax Premium 75mm Exhaust System for 17-21 Honda Civic Type R (FK8)

The FK8's factory exhaust does its job well. It's quiet on the highway, it passes every noise rule Honda had to meet, and it doesn't get in the way of the K20C1 much. But it's built to keep the car quiet, and some of that costs flow. The mufflers and resonators route exhaust through chambers and baffles to cancel out noise, and every turn adds a little back pressure. HKS's Legamax Premium replaces that with 75mm stainless piping and a straight-through muffler design. The exhaust goes straight through instead of winding its way out.

HKS says it's worth about 8 horsepower at 5,000 RPM. That's a real number, but it's not going to change how the car feels much. An FK8 makes over 300 hp from the factory, so 8 more is a small gain. You'll feel it more as a slightly freer-revving engine than as a big jump in power. Where you'll really notice the difference is the sound. It has a sportier tone that still stays refined, without the harsh rasp or highway drone some aftermarket systems have. If you want an exhaust that sounds good and is well built, this is a strong choice. If you're after big power numbers, the gains come from the turbo and the tune.

SUS304 Stainless

The system is built from SUS304 stainless steel, the standard 18/8 grade with 18% chromium and 8% nickel. It won't rust, even where the roads are salted, and it keeps its polished shine for years. Over time it'll pick up some blue and gold heat tint near the front of the system. That's normal for stainless and doesn't mean anything's wrong.

The Tailpipe Design

The Legamax Premium line is known for its tailpipe design. HKS styles the tips to suit each car, so they look like they belong instead of looking added on afterward. Some systems in the line come with titanium tips, which turn blue and purple with heat. Check what tips come on your version before you order.

Install Notes

Soak the factory hardware with penetrating oil the day before. Exhaust bolts on a car that's seen a few winters can be stubborn. Use new gaskets at each joint, hang the whole system loosely on the hangers first, and then line up the tips in the bumper before you tighten anything. Check that the system isn't touching the body or heat shields anywhere along its length. Run the car up to temperature, then re-check every joint for leaks and the clamps for tightness.

Fitment

• 2017-2021 Honda Civic Type R (FK8), including the 2021 Limited Edition
• Does not fit the 2023+ Civic Type R (FL5)