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Invidia

R400 Cat-Back Exhaust System

Name: R400 Cat-Back Exhaust System
Brand: Invidia
SKU: INVHS17CTRFGM3ST

$2,781.80 $1,569.79 Save $1,212.01

SKU: INVHS17CTRFGM3ST

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$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Invidia R400 Cat-Back Exhaust System is a performance-oriented upgrade designed to enhance power and produce an aggressive sound. This system features a full 3-inch diameter, mandrel-bent SUS304 stainless steel construction, and connects directly to the primary downpipe.

The R400 system incorporates three mufflers and a mid-pipe resonator to achieve its distinctive exhaust note. It also includes a 3-inch front pipe for maximum flow.

Show original supplier description

The Invidia Gemini R400 Cat-Back Exhaust System is engineered for the 2017-2020 Honda Civic Type R FK8, offering the most aggressive sound and performance upgrade from Invidia for this platform. This cat-back system features a unique R400 tuning with independent mufflers for each of the triple exhaust tips, delivering a more reactive and aggressive sound compared to the Q300 system. Owners can expect noticeable increases in turbo spool and blow-off valve audibility, along with improvements in throttle response, horsepower, and torque. The system includes a 3-inch front pipe to replace the factory component, ensuring maximum flow from the turbocharger to the tailpipe. The design includes three mufflers and a mid-pipe resonator, culminating in three striking burnt titanium exhaust tips that are precisely positioned to align with the FK8's factory triple-tip bumper openings. Exhaust hangers are welded onto OEM locations, facilitating a direct bolt-on installation.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

Brand	Invidia
Part Number	INVHS17CTRFGM3ST
Category	Exhaust

Videos

JDMYARD FK8 Type R - Invidia R400 Catback Exhaust

2018 TYPE R INVIDIA R400 GEMINI EXHAUST INSTALL DIY!

Invidia R400 Install & Sound Clips - 2023+ Honda Civic Type R FL5

FK8 invidia r400 sound clip

Type R Exhaust Invidia R400

Stock Type R exhaust VS Invidia R400

Invidia R400 Exhaust replacing AWE Touring Comparison on the 2023 Honda Civic Type R FL5

Installing Full exhaust on FK8 (Invidia R400) [UZENI215]

Invidia R400 installation and sound Civic Type R

Invidia R400 civic type r fk8

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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