SKU: 71008-AN020V | UPC: 4957266265635
HKS Super SQV IV + Return Kit Nissan Skyline R33 GTST ECR33 & R34 GTT ER34 RB25DET 1993-2002
The HKS 71008-AN020V Super SQV IV + Return Kit delivers the complete blow-off valve solution for Nissan Skyline R33 GTST (ECR33 1993-1998) and R34 GTT (ER34 1998-2002) equipped with RB25DET engines. This sequential valve features triple-fin discharge and pull-type relief for sharp “tsssh” blow-off sound while maintaining reliable boost pressure. The included recirculation hose enables closed-loop operation for smooth, factory-style performance without check engine lights.
Key Features
- Super SQV IV Valve: Triple-fin discharge port and pull-type diaphragm for progressive opening and high-flow capacity up to 280hp
- Sequential Dual-Valve Design: Primary valve opens first for low boost, secondary engages at high boost for precise control across RPM range
- Recirculation Return Hose: Direct-fit hose routes excess air back to intake pipe for quiet operation and emissions compliance
- Direct Bolt-On Fitment: Precision-machined mounting flange matches stock location on ER34 and ECR33 intercooler piping
- Lightweight Construction: Die-cast aluminum body weighs only 1.1 lbs for reduced hood weight and corrosion resistance
Product Notes
- Complete kit includes SQV IV valve, return hose, O-rings, mounting hardware for plug-and-play installation
- Adjustable spring preload for tuning blow-off response to match turbo setup
- Ships in official HKS retail box with protective foam inserts
Installation Notes
- Professional installation recommended.
- 30-60 minutes with basic hand tools. remove stock BOV and recirc hose from intercooler pipe
- All necessary gaskets and fittings provided. no pipe cutting or welding required
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1993-1998 | Nissan | Skyline | R33 GTST (ECR33) RB25DET |
| 1998-2002 | Nissan | Skyline | R34 GTT (ER34) RB25DET |
Why Choose HKS?
- Original JDM blow-off valve pioneer since 1994 with millions sold worldwide
- Hand-assembled in Japan using high-grade billet aluminum and stainless steel components
- Proven on RB engines in drifting, time attack, and street applications
Frequently Asked Questions
- Q: Does this kit trigger a check engine light on ER34 or ECR33?
A: No, the return hose recirculates boost air to the intake pipe just like the OEM setup for seamless ECU compatibility. - Q: What material is the valve body made from?
A: CNC-machined aluminum with anodized finish and fluorosilicone diaphragm for durability and heat resistance up to 200°F. - Q: What is the warranty and return policy?
A: 1-year limited manufacturer warranty against defects. contact us for installation verification before warranty claims.
Shipping & Handling
- Method: UPS/FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Official HKS retail box 10 x 8 x 6 inches
- Weight: 1.5 lbs
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