M273 5.5L V8 X-Pipe • E550 • CLS550 • SL550 • S550 • CL550 (2006–2011)

M273 5.5L V8 X-Pipe • E550 • CLS550 • SL550 • S550 • CL550 (2006–2011)

2.25" Dual High-Flow X-Pipe • Perfect for M273 Performance Upgrades

Shift your M273 5.5L V8 power band higher and feel stronger torque at the top end. This high-flow X-pipe is engineered specifically for M273 performance builds — reducing rasp, balancing exhaust pulses, and delivering noticeably more torque and power at higher RPMs when paired with headers or tuning.

Why M273 Owners Choose This X-Pipe

• Forward-placed X-merge creates a clear power band shift with stronger pull at higher RPMs on M273 engines
• Dual 2.25" I.D. optimized for M273 naturally aspirated and supercharged builds
• 409 stainless construction — weld-friendly and heat-cycle tough
• More usable torque and extended power at higher RPMs on tuned M273 5.5L V8s
• Perfect complement to M273 ECU tunes, headers, and intake upgrades for peak top-end performance

M273 Compatibility

Upgrade Bundles:

Stage 1+ Bundle (Filters + X-Pipe + Tune)

Stage 2+ Bundle (Headers + Filters + X-Pipe + Tune)

Need help with your build? Message us your vehicle — we’ll recommend the perfect setup.