Exhaust Parts · SKU CD987654317-1
3.5 Inch Vband 90 Degree Cast Turbo Elbow Adapter Flange for T3 T4 Turbocharger 304
A 3.5 inch Vband 90 degree cast stainless steel 304 adapter flange for T3 and T4 turbochargers. It connects the turbo outlet to a header or manifold with a tight radius bend and allows rotation at any angle via the Vband joint. The flange is cast and machined from 304 stainless steel with a silver finish and ships as a single piece with no additional parts included.
- MaterialStainless Steel 304
- SurfaceSilver
- Size3.5 inch
- Flange TypeVband
What You Get
Key Benefits
- 3.5 inch Vband flange allows flexible alignment between turbo and header without requiring precise fitment
- Tight radius 90 degree bend fits in compact engine bays where space is limited
- 304 stainless steel construction resists corrosion and heat cycling better than mild steel
- Cast and machined flange ensures consistent hole patterns and flat sealing surfaces
- Vband joint allows rotation at any angle, reducing stress on the turbo and exhaust system
Why Buyers Switch
Problems It Solves
- Factory turbo flanges do not align with aftermarket headers due to different mounting angles
- Rigid adapters force misalignment, leading to leaks or stress on the turbo housing
- Mild steel adapters corrode quickly at the flange and fail under heat cycling
- Universal adapters require cutting and welding, which adds labour and risk of poor fit
Where It Is Used
Application Scenarios
- Performance shops installing custom headers on T3 and T4 turbo setups with tight engine bay clearance
- Diesel and truck tuners adapting turbo systems to non-OEM headers or manifolds
- Distributors stocking vehicle-specific turbo adapters for aftermarket exhaust kits
- Online sellers needing a photographed, vehicle-agnostic part with clear fitment specs
Buyers
Who It Is For
- Performance parts distributors buying turbo adapters by the pallet
- Diesel and truck accessory wholesalers serving tuners and installers
- Independent installation shops that build custom exhaust systems on demand
Construction
Technical Features
- 3.5 inch Vband flange on the header/manifold side with 93mm ID / 108mm OD
- 90 degree cast elbow with tight radius for compact routing
- T3 flange hole to hole: 45 x 86mm, T4 flange hole to hole: 70 x 83mm
- Cast and machined 304 stainless steel construction with silver finish
- Vband joint allows rotation at any angle for easy alignment
- Single piece assembly with no additional parts included
Data
Specifications
| Material | Stainless Steel 304 |
|---|---|
| Surface | Silver |
| Size | 3.5 inch |
| Flange Type | Vband |
| Angle | 90 Degree |
| Construction | Cast and Machined |
| Fitment | T3 and T4 Turbochargers |
| Flange Dimensions | T3: 45 x 86mm, T4: 70 x 83mm |
| Vband Dimensions | 93mm ID / 108mm OD |
| Package | 1x Adapter Flange |
Material
Materials
- 304 stainless steel tube and flange
- Cast and machined body with silver finish
Manufacturing
How It Is Made
Casting of the 90 degree elbow in 304 stainless steel
Machining of flange holes to precise T3 and T4 dimensions
Inspection of the cast body for porosity and structural integrity
Final assembly check for alignment and Vband fit before packing
Checks
Quality Control
- Flange hole pattern verified against T3 and T4 specs before machining
- Sealing faces checked for flatness and surface defects
- Vband interface inspected for smooth rotation and proper fit
- Final visual and dimensional check before packaging
Private Label
Customisation Options
- Private label packaging and barcode labels on request
- Bulk cartons available for container orders
Comparison
Compared With The Alternatives
| Factory turbo flange | The factory flange is fixed in angle and does not allow rotation, limiting header alignment options |
|---|---|
| Mild steel adapter | Mild steel is cheaper but corrodes at the flange and fails under repeated heat cycles |
| Universal cut-to-fit adapter | A universal adapter requires welding and cutting, which adds labour and risk of poor fit |
Installation
Use Guide
- Confirm the turbocharger is T3 or T4 before ordering
- Ensure the header or manifold side has a matching 3.5 inch Vband flange
- Do not reuse old gaskets; use a new high-temp gasket for the Vband joint
- Tighten the Vband bolts evenly in a crisscross pattern to avoid misalignment
- Check the joint after the first heat cycle to ensure no movement or leaks
More In This Family
Related Products
Answers
Questions About This Part
Is this compatible with a T3 turbo and a T4 header?
Yes, the adapter has a T3 flange on the turbo side and a 3.5 inch Vband on the header side, so it connects T3 turbo to T4 header with a 90 degree bend.
What size is the Vband flange?
The Vband flange has an inner diameter of 93mm and an outer diameter of 108mm.
Is the flange included or do I need to weld it on?
The flange is already cast and machined as a single piece. It ships as a complete adapter with no welding required.
What material is used and why does it matter?
304 stainless steel is used for its resistance to corrosion and heat cycling, especially in high-temperature turbo applications.
What is included in the package?
One 3.5 inch Vband 90 degree cast adapter flange. No gaskets, bolts, or hardware are included.
Can we get our own brand on the box?
Yes. Private label packaging and barcode labels can be arranged, and bulk cartons are available for container orders.
Is this street legal where I sell?
We make no emissions approval claim for this part. Check your local regulations before resale.
Get This Part Quoted
Send the quantity you need and your market, and the reply will cover price, packing and lead time.