Rywire B Series Adapter Harness for 90-93 Acura Integra

Rywire Chassis Adapter Harness for 90-93 Integra

This is the chassis-side half of a Rywire tucked harness setup, sold on its own. Rywire builds their B/D-series engine harness in two pieces for a reason: the engine harness itself is universal and does the expensive work at the motor, while this adapter harness is the chassis-specific piece that bridges it to your particular Integra's body wiring, the connectors at the shock towers and the bulkhead that tie into the car's charging, ignition, and interior circuits. Keeping those two parts separate is what lets the pricey engine harness stay common while the cheap adapter handles whatever shell it's going into.

That modularity is the whole point of buying this piece by itself. If you've moved a drivetrain and its Rywire engine harness into a different Integra, you don't rebuy the whole harness, you just grab the adapter that matches the new chassis. And because Honda didn't wire all of these cars the same way, the adapter is built specifically for your year and trim.

Choose Your Chassis: Three Variants

Pick the one that matches your actual shell, because this is where the fitment lives. Honda changed the chassis-side connectors for 1992, so an early DA and a later DA don't plug in the same, and the GS-R runs its own chassis wiring on top of that:

• 90-91 Integra (RS, LS, GS) - early DA USDM adapter
• 92-93 Integra (RS, LS, GS) - late DA USDM non-GSR adapter
• 92-93 Integra GS-R - GS-R USDM adapter

Read This First: Adapter Only

Be clear about what this page is. This is the chassis adapter harness by itself. It does not include the Rywire B/D-series engine harness, and it does nothing on its own. You run it together with that engine harness, where it plugs into the main loom on one end and your chassis connectors on the other. If you're building from scratch and don't already own the engine harness, you need both. If you already have the engine harness and just need the right chassis piece, this is it.

Built Like the Rest of the Harness

It's made to the same standard as everything else Rywire sends out. New connectors, proper pneumatic crimps, and clean construction, built in the USA. It's designed to plug straight in between the engine harness and your chassis wiring, so there's no splicing into old factory wires and no guesswork at the body side.

Good to Know

Confirm your chassis before you order, because the three adapters are not interchangeable and a GS-R shell is not the same as an LS or RS. As with all Rywire harnesses, these are warrantied and guaranteed to work, but once one is installed it can't be returned, so match it to your car first.

Fitment

• 1990-1991 Acura Integra (RS, LS, GS)
• 1992-1993 Acura Integra (RS, LS, GS) - non-GS-R
• 1992-1993 Acura Integra GS-R

Select your chassis from the variant dropdown. This is the chassis adapter harness only - it pairs with the Rywire B/D-series tucked engine harness, which is sold separately.