SKU: 69835
Vibrant 3.02in ID x 4.00in Long 321SS Electro Polished Motorsport Bellows w/Neck & Liner (04-21 Subaru STI, 03-09 Nissan 350Z, 09-20 Nissan 370Z)
Vibrant 69835 motorsport bellows deliver reliable flex in high-performance exhaust systems. Designed for vehicles like 2004-2021 Subaru Impreza WRX STI, 2003-2009 Nissan 350Z, and 2009-2020 Nissan 370Z, it handles engine vibration and thermal expansion. This 321SS construction ensures long-lasting performance under extreme conditions.
Key Features
- 321 Stainless Steel Build: Withstands temperatures up to 1600°F and resists cracking from repeated flexing.
- Electro Polished Finish: Smooth surface repels exhaust residue and corrosion for extended service life.
- 3.02in Inner Diameter: Secure fit over standard 3in exhaust tubing without adapters.
- 4.00in Length: Balances flexibility and rigidity to isolate drivetrain movement.
- Neck and Liner Design: Provides airtight seal and minimizes exhaust turbulence for better scavenging.
Product Notes
- Ideal for turbo downpipes and custom exhaust fabrication.
- Inspect clamps regularly to maintain seal integrity.
- Packed in protective sleeve to prevent handling damage.
Installation Notes
- Professional installation recommended.
- Use stainless steel 3in V-band or U-bolt clamps for secure attachment.
- Torque clamps to 45-50 in-lbs and align necks concentrically.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2021 | Subaru | Impreza | WRX STI |
| 2003-2009 | Nissan | 350Z | All |
| 2009-2020 | Nissan | 370Z | All |
| 2015-2021 | Subaru | WRX | All |
| Universal | All | 3in Exhaust | Motorsport |
Why Choose Vibrant?
- Proven in NHRA and SCCA racing applications.
- Hand-welded for consistent wall thickness and strength.
- Backed by limited lifetime warranty against defects.
Frequently Asked Questions
- Q: Will this bellows fit Subaru STI turbo downpipe?
A: Yes, the 3.02in ID matches factory and aftermarket STI downpipes from 2004-2021 models. - Q: What makes the finish special?
A: Electro polishing removes impurities for a mirror-like surface that resists carbon buildup and rust. - Q: What clamps work best?
A: Pair with Vibrant 3in V-band clamps or marmon style for vibration-free hold.
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: 6 x 6 x 2 inch box
- Weight: 0.4 lbs






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