Honda CRX Catback Exhaust System - 1990-1991 1.5L, 4.5" Tip

A Catback Exhaust Built for the 1990-1991 Honda CRX 1.5L

This is a catback exhaust system for the 1990-1991 Honda CRX 1.5L, sold complete and ready to bolt on from the catalytic converter back. If you're looking to get a little more sound and flow out of a CRX without going the full custom-fabrication route, a bolt-on catback is usually the simplest and most cost-effective place to start, and that's exactly what this kit is built for.

What a Catback Exhaust Changes

"Catback" just means the section of the exhaust system that runs from the catalytic converter to the tailpipe — the piping, the muffler, and the exhaust tips. Swapping this section for a wider-diameter, mandrel-bent setup like this one typically opens up exhaust flow, which can free up a bit of power and torque depending on the rest of the engine's condition, and it noticeably changes the exhaust note. It doesn't touch anything upstream of the catalytic converter, so your factory emissions equipment stays in place, which matters if you still need to pass inspection in your area.

What's Included

This kit comes with a rolled inlet section sized at 2.250 inches, stepping up to a 4.0 inch rolled muffler tip, along with a burnt-finish tip option at 2.50 inch inlet and 4.5 inch outlet for a different visual and tone. Both tip styles are included so you can decide which finish and size suit the look you're going for on your CRX. Everything is designed to fit together as a complete catback assembly rather than requiring you to source additional adapters or couplers separately.

Fitment

This exhaust system is built specifically for the 1990-1991 Honda CRX with the 1.5L engine. That's a narrow fitment window on purpose — CRX exhaust routing and hanger placement changed enough between trims and model years that a catback built for a different year or engine size usually won't line up correctly. If you're working on a CRX from outside that 1990-1991, 1.5L window, this particular kit isn't the right match, and it's worth double-checking your VIN and engine code before ordering rather than assuming compatibility carries over from a similar-looking model year.

Why People Upgrade a CRX Exhaust

The CRX has been out of production for a long time now, which means a lot of the exhaust systems still running on these cars are original equipment from the late 1980s and early 1990s — at that age, surface rust, cracked hangers, and blown-out mufflers are common even on cars that have otherwise been well maintained. The Honda CR-X was only in production for a handful of years, which is part of why factory exhaust systems on surviving cars have had so much time to deteriorate. For CRX owners keeping one of these on the road, replacing a tired factory exhaust with a fresh catback solves the rust and leak problems at the same time as giving the car a more aggressive tone than the stock system ever had.

Sound and Tone

A catback like this one tends to give a noticeably deeper, throatier exhaust note than the stock CRX system without crossing into the kind of drone that makes highway driving unpleasant, though tone is always going to be somewhat subjective and dependent on what's ahead of it in the exhaust system. If you're chasing a specific sound, it's worth looking at reviews or videos of this style of catback on a similar 1.5L Honda before committing, since a muffler that sounds great on one setup can come across differently on another.

Installation Notes

Installing a catback exhaust is a job most home mechanics with basic tools and a way to get the car up in the air can handle in an afternoon. Expect to deal with old exhaust hardware that's likely rusted in place after three decades — penetrating oil and patience with the factory bolts and hangers will save you a lot of frustration compared to forcing anything. Since this is a bolt-on system built for the stock hanger locations, you shouldn't need to modify brackets or cut anything to get it to sit correctly, though a test fit before final tightening is always a good idea.

Specifications

• Type: Catback exhaust system (converter-back)
• Compatible vehicle: 1990-1991 Honda CRX, 1.5L engine
• Rolled tip option: 2.250 inch inlet / 4.0 inch outlet
• Burnt tip option: 2.50 inch inlet / 4.5 inch outlet
• Condition: New

Ordering Information

This catback exhaust is in stock and ships as a complete kit. Our Shipping Information page has current timelines, and our Warranty and Returns pages cover what happens if anything needs to go back. If you're not sure this is the right fitment for your specific CRX, our Request a Part page is the fastest way to confirm before you order.

Related Parts

This exhaust sits in our exhaust and emissions collection alongside other catback and header options, and in our Honda collection for owners working on other Honda models. If you're upgrading exhaust flow, it's also worth browsing our broader performance parts selection for anything else that pairs well with a freer-flowing exhaust setup.