SC Project Titanium Exhaust GP70-R for S 1000 RR (2017-2018)

SC Project Titanium Exhaust GP70-R for S 1000 RR (2017-2018)

SC‑Project is a leading Italian exhaust maker whose roots are firmly embedded in MotoGP and World Superbike engineering—meaning their parts are crafted alongside race‑spec components. The GP70‑R is one of their most iconic designs, engineered to deliver race‑level performance and aesthetic flair on street bikes.

2. Design, Materials & Aesthetics

• Full titanium construction: both the muffler body, link pipe, and end cap are crafted from Grade‑5 titanium, TIG‑welded for precision and reliability.

• Laser‑engraved logo: adds a refined, stealthy branding without breaking the sleek design.

• Angled outlet and large Ø70 mm exit: gives a distinctive retro‑sport look and aggressive presence

• Carbon heat shield included in most kits protects rider and harnesses design contrast.Mounting hardware: package includes bike‑specific titanium/CNC bushings, springs, and screws—all fitted for plug‑and‑play fitting plus homologation card and stickers

Overall, the GP70‑R projects a clean, purposeful, retro‑modern aesthetic that stands out even parked next to other high-end slip‑ons.

3. Weight & Power Gains

• Weight savings: cuts approximately 3.7 kg (stock ~4.45 kg → GP70‑R ~0.75 kg), slashing nearly 85% of the weight—enhancing agility, flick‑ability, and balance

• Power boost: gains about +4.6 hp at ~9,850 rpm and +7.3 Nm at ~7,800 rpm, resulting in sharper throttle response and stronger mid‑top‑end punch—especially beneficial on track runs

This is significant for a slip‑on system, making the GP70‑R one of the more performance‑oriented choices in its class.

4. Installation & Tuning Considerations

• Plug‑and‑play with no permanent modifications: includes link pipe, springs, screws, and fill‑in replacement of OEM silencer—all homologated components

• No ECU remap required: built to Euro 4 street‑legal spec, ensuring safe plug‑in fitment. However, full header replacement or radical tuning may warrant mapping changes or a fuel controller for safe mixture and better throttle transition.

Be aware: this model comes with no dB‑killer by default, so users should confirm whether their version includes a removable insert—especially if planning street use in noise‑regulated areas

5. Sound Character & Sensation

• GP70‑R is built for aggressive, race‑inspired acoustics: expect loud, raw, baritone tone with sharp down‑shift pops and clean high‑rpm whine. Riders describe it as “deep,” “raspy,” and unmistakably race‑spec .Extremely loud output: Reddit users emphasize it as among the loudest SC offerings—especially without any baffle. One notes hearing damage or ringing occurs if you ride extended with no ear protection—even at relatively modest RPMs.

• On other platforms:

  “SC Project is one of the loudest options. … It’s certainly not a TOCE cheap crap …”
  Riders recommend ear protection even for short rides.

GP70‑R is ideal for those craving uncompromising sound and presence—but less suited for stealth or quiet cruising.

6. Legal & Homologation Status

• The GP70‑R for the 2017–2018 S1000RR is EURO 4-approved and carries EC/ECE homologation, making it street-legal in compliant regions (e.g., EU, certain certifications in India)

• The included homologation card supports inspections, though legality depends on whether local noise regulations are exceeded due to the lack of a baffle.

Always check local regulations and confirm if your delivery includes the noise insert to remain compliant.

7. Rider Feedback & Community Insight

Reddit and forums echo a mix of awe and caution from GP70‑R owners:

• One shared:

  “I ran the SC PROJECT GP70‑R on my 21 R1. My God did it sound good … It’s a deeper sound than the Austin Racing imo”

  Community remarks recurrently:

• “More background… I’m going deaf.”
  “If you don’t want loud or deafening, then stock exhaust is your best bet”

The consensus? Performance and sound are top-notch—but hearing care and situational awareness are crucial.

8. Comparison to Other SC‑Project Lines

• S1 Titanium (Euro 4 S1000RR slip‑on): somewhat more street‑friendly, slightly quieter, includes carbon accents, typical power gain of ~4.9 hp and ~5.8 Nm, weight ~0.9 kg, but still loud without baffle.SC1‑R: Euro 5 replacement with quieter tuning and optional removable dB‑killer; ideal for riders needing quieter street operation.
  GP70‑R is positioned as the loudest full‑titanium SC slip‑on available for this bike, accentuating raw performance over compliance.