Eibach Anti-Roll Rear Sway Bar for 22-26 Civic Si/Integra

Eibach Anti-Roll Rear Sway Bar - 2022-2026 Honda Civic Si (FE1) & 2023-2026 Acura Integra (DE4)

If there's one bolt-on that changes how a front-wheel-drive car feels in a corner, it's a rear sway bar, and this is Eibach's, sold on its own for the Si and Integra. From the factory these cars understeer on purpose, meaning the front pushes wide when you ask for more than it wants to give. A stiffer rear bar is the classic fix. It wakes the back of the car up, kills that understeer, and gets the car to rotate and turn in like it actually wants to attack the corner. For a lot of enthusiasts, this single part is the best-feeling money you can spend on the car.

Why The Rear Bar Transforms A FWD Car

Here's the plain version of why this works. A stiffer rear bar makes the back end resist body roll more, which shifts a little more work to the rear tires during hard cornering. That loosens up the tail just enough to cancel out the nose-heavy understeer these cars are built with. The result is a car that rotates into the corner instead of plowing straight, turns in sharper, and feels alive and eager instead of safe and dull. You keep all the grip and stability, you just trade away the boring, understeer-first tuning the factory baked in.

2-Way Adjustable And Tubular

This rear bar is tubular and 2-way adjustable, and that adjustability is the whole point on a bar like this. Set it to the softer hole for a mild bump in rotation that's friendly for daily driving, or move to the firmer setting when you want the car to really rotate on turn-in for backroads or autocross. You can tune the car's balance to your taste and change it whenever you like. Building it tubular keeps the weight down while giving you the stiffness you're after, and at 22mm it's sized specifically for the Si and DE4 Integra.

A Popular Standalone Upgrade

Worth knowing: the rear bar is the one people most often run by itself, and for good reason. Because these cars understeer from the factory, firming up just the rear gives you the biggest change in how the car feels for the least money and the simplest install. So if you're only going to add one bar, this is usually the one to get. That said, pairing it with the front bar as the full kit gives you the most complete control over the car's balance, flattening the whole car while letting you fine-tune front-to-rear. Either way, this rear bar is the piece that brings the rotation.

Made In The USA, Backed For Years

Eibach engineered and tested this bar for these cars specifically, and it works whether your car is stock or already lowered on springs or coilovers. It's made right here in the USA and covered by Eibach's five-year warranty, so it's proven hardware you can bolt on and trust.

Do The Job Right

This is a straightforward bolt-on, but respect what it does. Start on the softer setting first, especially if this is your first adjustable bar, and get a feel for the extra rotation before you jump to the firm hole. A rear bar changes how the car behaves at the limit, so ease into it, then firm it up once you know how the car responds. Get your endlinks and mounts torqued properly and you're set.

Who This Is For

This one's for the Si or Integra driver who's tired of the factory understeer and wants the car to actually rotate and feel eager in a corner. Whether it's your only handling mod or the standout piece of a bigger setup, this rear bar delivers the biggest change in feel for the money. If you want the full package and the ability to balance front and rear, grab the complete kit. If you want the single part that wakes the car up, this is it. Bolt it on, start soft, and go feel your car turn in like a different machine.

Fits: 2022-2026 Honda Civic Si (FE1) and 2023-2026 Acura Integra Base / A-Spec (DE4). Bar: 22mm rear, tubular, 2-way adjustable. Compatibility: works with stock, lowered, and performance suspension setups. Made: in the USA. Warranty: Eibach 5-year warranty. Also available: as a full front and rear Anti-Roll-Kit, or as a front bar on its own.