Skunk2 76mm Alpha Series Downpipe | Honda Civic Type R (FK8) 2017 to 2021

If you actually use your FK8 the way Honda intended, hard pulls, heat, and track time, the stock turbo Civic Type R downpipe becomes a bottleneck fast. The Skunk2 Alpha Series downpipe opens up the hot side with a true 3 inch 76mm path, so the turbo works less for the same boost and your car responds quicker. We run these parts too, because broken exhaust parts and boost creep excuses are not a vibe at the track Civic Type R exhaust level.

What you get and why it matters

Skunk2 Racing builds this as a 304 stainless Civic Type R exhaust piece with mandrel bent tubing and TIG welded Civic Type R exhaust joints, then backs it up with thick flanges and an integrated stainless flex section. In real life that means fewer leaks, less stress on the rest of your Skunk2 exhaust Civic Type R setup, and a downpipe that does not crack the first time you punish it on sticky tires.

Straight or Catted, pick your compromise

Style Straight, SKU SK2-412-05-6065, targets maximum flow. If you want the most aggressive high flow Civic Type R downpipe option and you do not care about emissions equipment, this is the one. Style Catted, SKU SK2-412-05-6066, uses a Max Flow 100 cell platinum palladium honeycomb catalyst, so you keep most of the flow while cutting the raw fuel smell and taking the edge off for some motorsports rulesets. Neither option magically makes your car quiet, this is still a racing Civic Type R exhaust focused part.

Key Features:

• True 3 inch 76mm Civic Type R downpipe diameter, helps the turbo breathe up top.
• 304 stainless tubing, handles heat cycles and corrosion better than cheap mild steel.
• TIG welded joints, built for durability when you run repeated hot laps.
• Stainless flex section, lets the drivetrain move without beating up the piping.
• Universal 3 inch outlet flange, plays nice with the factory exhaust or most aftermarket 3 inch systems.
• O2 sensor bungs in factory locations, you keep OEM sensor placement and the install stays straightforward.
• OEM fit Civic Type R downpipe layout, bolts on like it should.
• Includes hardware, so you are not stuck reusing crusty fasteners.