1997-2007 Subaru Impreza WRX STi TruHart Trailing Arms TH-S103

Item Specifics:
Brand: TruHart
Part Number: TH-S103
Type: Trailing Arms (Lateral Arms)
Bushing Type: Hardened Rubber
Fitment: 1997-2007 Subaru Impreza (L, RS, TS, WRX, WRX STI, WRX Limited, WRX TR, Outback Sport), AWD
Condition: New
Description:
This is the arm that tightens up your rear end without beating you up on the daily — genuine TruHart trailing arms, part TH-S103, built for the 1997-2007 Subaru Impreza and WRX/STI. TruHart replaces your factory arms with a strengthened design running hardened rubber bushings — less deflection than OE, more direct road feel, without going full pillowball stiff.
That's the real difference here versus a pillowball setup: you get a genuine handling upgrade over tired factory bushings — sharper response, less vague movement in the rear end — while keeping a ride quality that's still livable for a daily driver. If you're chasing max feedback for a dedicated track or rally car, pillowball's the move. If you want real improvement without turning your commute into a punishment, this is the smarter call.
Direct bolt-on replacement, precision engineered for this chassis specifically, not a generic universal fit. Backed by TruHart's limited lifetime structural warranty, so you're not gambling on a part that gives out in a season.
But this isn't just about swapping arms. It's about a rear end that actually holds its line — tighter response, less slop, still livable every day. Whether you're building a rally car, a spirited daily, or just want your GC/GD chassis handling like it should, this arm 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 TruHart trailing arms, part number TH-S103
Hardened rubber bushings — less deflection than OE, more road feel/noise than pillowball
Direct bolt-on installation
TruHart limited lifetime structural warranty
Fits: 1997-2007 Subaru Impreza (L, RS, TS, Outback Sport), WRX, WRX STI, WRX Limited, WRX TR — AWD only
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
Alignment recommended after installation. Additional suspension hardware sold separately unless otherwise noted.
Tags:
TruHart, trailing arms, lateral arms, Subaru Impreza, WRX, WRX STI, GC8, GDA, GDB, rear suspension, JDM suspension parts