SC Project CR-t Titanium Exhaust with stoneguard Grid for S 1000 R 2021-2024

SC Project CR-t Titanium Exhaust with stoneguard Grid for S 1000 R 2021-2024

1. Fitment & Product Overview

The SC‑Project CR‑T Titanium with Stoneguard Grid (part B39A‑38TR) is a plug‑and‑play slip‑on exhaust compatible with BMW S 1000 R models from 2021 through 2024, boasting Euro 5 approval and full legal certification including a homologation card and 24-month official warranty. (turn0search0/turn0search6/turn0search10)

SC markets it as their most aggressive racing-style slip‑on, offering bold looks, weight savings, and a visceral, MotoGP-inspired sound.

2. Materials & Build Quality

Constructed entirely from aerospace-grade titanium—body, end cap, and link pipe—the CR‑T features TIG-welded joints and CNC-machined titanium bushings and mounting brackets.

The titanium mesh stoneguard over the exhaust outlet adds visual flair and protects the tip from road debris. (turn0search0)

Despite its performance orientation, it remains street-legal under Euro 5, with EC/ECE approval clearly listed.

With a total system weight of ~0.9 kg (down from the OEM ~2.3 kg), the CR‑T delivers approximately 1.4 kg weight savings, enhancing handling and rear-end feel. (turn0search0/turn0search9)

3. Performance: Power & Weight Gains

SC‑Project rates the CR‑T Titanium with the following gains:

• +1.0 hp at ~11,500 rpm (for RR version, but slip-on version: +0.6 hp @9,400 rpm)

• +0.9 Nm torque @10,250 rpm (slip‑on variant: +0.7 Nm @9,400 rpm)
  (turn0search3/turn0search6/turn0search5)

These modest gains combine with the substantial weight reduction to provide noticeable improvements in throttle response and flickability—especially beneficial on twisty roads or during aggressive braking.

4. Sound Profile & Regulations

Loudness & Tone

The CR‑T has no removable dB‑killer and features a fixed, race-level sound. SC positions it as their most uncompromising exhaust—“pure racing tone without compromise.” (turn0search0/turn0search5)

Official specs cite 100 dB @6,750 rpm, though riders report peaks above 110–120 dB bei wide-open throttle, especially with full racing headers. (turn0search9/turn0search5)

Community Feedback

Users across Reddit forums consistently describe the CR‑T as extremely loud:

“SC‑Project CR‑T is the loud, MotoGP style exhaust. It’s the loudest… if you’re just looking to make MotoGP sounds on the street.” (turn0reddit18)

“It was so loud I was getting headaches after rides.”
“I had to cover my ears even inside my own garage when someone rode by…” (turn0reddit14)

Even in Euro‑5 contexts, removal of a baffle may render it non-compliant under real-world noise limits despite static homologation. (turn0reddit17)

5. Installation & Kit Contents

The package includes:

• Slip‑on titanium muffler (with stoneguard mesh)

• Titanium link pipe

• Springs, screws, SC stickers

• Carbon heat-shield for protection

• Homologation card and 24-month warranty
  (turn0search0/turn0search5)

Installation is straightforward and estimated at under an hour. It requires no ECU remap and fits directly onto OEM headers. Be cautious: compatibility with third-party headers like Akrapovič or Arrow may not be seamless. (turn0reddit22)

6. User Experience & Community Commentary

Advantages

• Unmatched sound impact—brutal, deep, and aggressive for track or high-speed street use

• Elegantly built—Titanium craftsmanship with durable stoneguard mesh

• Significant weight reduction—a real benefit for handling and braking feel

Cautions

• Excessive volume—often described as headache-inducing, with reports of ringing ears

• Noise-sensitive areas—likely to draw complaints or trigger enforcement even if certified

• Limited legal flexibility—no baffle means no onboard noise control

• Potential counterfeit risk if sourced from unauthorised dealers (turn0reddit15)

Baffle “Myth”

Some European users mentioned receiving versions with supposed baffles, but these reportedly offer minimal attenuation and are functionally negligible in moderating sound. (turn0reddit17)

7. Comparison With Other SC Models

In short, among SC’s current Euro 5 offerings, CR‑T delivers the most raw, uncompromising sound and worst volume control. SC1‑R is a better all-round choice if you want style and sportiness without full-on sonics. (turn0search10/turn0reddit18)

8. Pros & Cons Summary

Pros

• Major mass reduction (~1.4 kg) improves handling and feedback

• Top-tier titanium build, laser-sculpted mesh, superb finish

• Distinct, race-ready sound and visual identity

• Euro 5 approval and warranty—fits with modern S 1000 R regs

• Plug-and-play integration—no ECU remap required

Cons

• Extremely loud—causing rider fatigue and potential legal issues

• No noise attenuation option—volume is fixed

• Moderate performance gains—sound is the headline

• Possible fit issues with non-SC headers

• Risk of counterfeit units if not purchased from trusted sources