R1-Spec Catback Plus Front Over Pipe Combo for Civic Si FE1

By REMARK Exhaust | Published: 2026-11-03

Category: Koopgidsen

Decide if the R1-Spec catback and front over pipe combo fits your Civic Si FE1 or Integra A-Spec DE4, with clear trade-offs and fit rules.

Quick answer

Buy the R1-Spec catback plus front over pipe combo if you want a matched two-piece exhaust for a 2022+ Civic Si FE1 or 2023+ Integra A-Spec DE4 and you're comfortable with an open-box part that has been installed before. Skip it if you need a factory-sealed kit or only want a rear-section sound change.

Why the combo exists and what it changes

A catback alone changes the rear-section tone and tip look; adding the front over pipe extends the replacement path forward. The combo pairs both parts so you're not mixing brands or guessing compatibility between a catback and a separate front pipe.

This is a buying decision, not a power guarantee. The listing does not publish dyno figures, pipe diameter, or material specs, so treat the combo as a fit-and-completeness purchase rather than a claimed performance upgrade.

The open-box trade-off

The supplied record rates condition 4.5/5, notes open box yes, and says it has been installed on a vehicle. That's the main compromise: you save versus the catalog comparison price, but you should expect signs of trial fitting and confirm every gasket and hardware piece is present before you start.

If you're building a show car or need untouched parts for a warranty claim, this specific combo is the wrong starting point. If you're after a complete bolt-on path at a lower entry cost and can inspect a box, it's a reasonable trade.

Trim-specific fit details you must check first

The listing covers Civic Si, EX, and Touring FE1 plus Integra A-Spec DE4, but the trim hardware differs. Civic Si buyers get an OEM driver-side exhaust trim cover; Civic EX and Touring buyers get an OEM passenger-side trim opening. Confirm which one applies to your car before ordering so the tip exits cleanly.

The Integra A-Spec DE4 is a different platform from the Civic, so don't assume the Civic trim notes carry over. Use the DE4 application as your fit check, and plan for the same open-box inspection.

Decision rules for the R1-Spec combo

Match your chassis and trim: Buy only if your car is a 2022+ Civic Si, EX, or Touring FE1, or a 2023+ Integra A-Spec DE4. For Civic Si, confirm the driver-side trim cover is the correct one for your bumper; for EX/Touring, confirm the passenger-side trim opening. If your trim isn't listed, stop here and look for a trim-specific catback instead.
Accept the open-box condition: The combo is rated 4.5/5, open box, and previously installed. Inspect the front pipe, catback, gaskets, and hardware on arrival and photograph any marks before installation. If you need factory-sealed parts, choose a new-condition catback rather than this combo.
Decide based on scope, not sound clips: Choose the combo if you want the catback and front over pipe replaced together in one purchase. Choose a catback-only kit if you only want a rear-section change and want to keep the factory front pipe. The listing gives no sound or power figures, so base the decision on fit, completeness, and condition.

Product facts

COMBO: R1-Spec Catback Exhaust PLUS Front Over Pipe - Honda Civic Si / EX / Touring FE1 [2022+] & Acura Integra A-Spec DE4 [2023+]: Fits 2022+ Civic Si/EX/Touring FE1 and 2023+ Integra A-Spec DE4; includes gaskets and hardware. You can plan a single install session without sourcing separate gaskets, but you still need to verify the trim cover or opening for your specific trim.
COMBO: R1-Spec Catback Exhaust PLUS Front Over Pipe - Honda Civic Si / EX / Touring FE1 [2022+] & Acura Integra A-Spec DE4 [2023+]

Who should buy this combo

Best for

2022+ Civic Si FE1 owners who want a matched catback and front over pipe in one purchase
2023+ Integra A-Spec DE4 owners comfortable inspecting and installing an open-box, previously fitted kit

Not for

Buyers who need a factory-sealed exhaust or cannot accept prior installation marks
Civic or Integra trims not listed in the application, or owners who only want a rear-section sound change