Acura RSX TSX Honda Civic Si K20 K24 Wavetrac LSD Differential 60.309.190WK

This is the differential that actually puts your power down — a genuine Wavetrac LSD, part 60.309.190WK, engineered from a clean sheet to be a better differential than anything else on the market. This isn't a torque-biasing diff that gives up the moment a wheel unloads — Wavetrac's patented wave profile keeps drive going to the wheel that still has grip, even in situations where every other gear-type LSD just goes silent.

Built from 9310 steel gears in a case-hardened body, held together with ARP fasteners, this thing is engineered to last. The patented carbon fiber bias plate keeps performance consistent from mile 1 to mile 100,000 — most other gear-type LSDs run pinions directly on the housing, so their bias ratio actually degrades over time as things wear in. Wavetrac doesn't have that problem. Fit and forget — no special oils, no servicing, just a direct bolt-in upgrade over your factory open differential.

But this isn't just about a spec sheet. It's about a K-series car that actually launches straight and carves a corner without one wheel just spinning uselessly — the difference between fighting your car off the line and actually putting the power down. Whether you're building a track car or just tired of torque steer eating your front end, this diff does exactly that.

🚚 Fast shipping nationwide — orders ship next business day, typical arrival in 2-4 days

⭐ Local pickup available — Pico Rivera, CA showroom

📞 Questions on fitment or install? Call 562-366-4516 or Text 562-270-5361 — happy to help

Item Details:

Genuine Wavetrac limited slip differential, part 60.309.190WK

9310 steel gears, case-hardened steel body, ARP fasteners

Patented carbon fiber bias plate, wave profile design

Manual transmission only

Transferable Limited Lifetime Warranty

Made in USA

Fits: Acura RSX 2002-2006, Acura TSX 2004-2008, Honda Civic Si 2002-2011, Honda CR-Z 2010-2015, Civic EP3/FN2, Integra DC5 (K20/K24)

Why Buy From JDM CARBOY?

✅ Genuine products

✅ Fast shipping

✅ Expert fitment assistance

✅ Local pickup available

✅ Financing available at checkout

✅ Serving the JDM Community Since 2001

Installation labor and bearing replacement recommended at time of install — sold separately.