HKS 71008-AT009 Super SQV4 Blow Off Valve for 1990-1995 Toyota MR2 Turbo 3S,

Vehicle Fitment

• 1990-1995 Toyota MR2 Turbo (SW20 Platform, 2.0L I4 Turbo 3S-GTE)

Features

• High-performance Super Sequential Blow Off Valve (SSQV4) design
• Dual-stage pull-type relief operation for responsive boost control
• Durable aluminum die-cast body with corrosion-resistant finish
• Metal die-cast secondary valve for enhanced strength
• Triple-fin design produces distinctive turbo sound
• Works across low to high boost ranges without leaking
• Improved throttle response and turbo efficiency
• Direct replacement for factory blow off valve on MR2 Turbo

Specifications

• Part Number: 71008-AT009
• Application: Toyota MR2 Turbo 1990-1995 (3S-GTE engine)
• Valve Type: Super SQV4 sequential blow off
• Material: Aluminum die-cast body with metal valve components
• Mounting: Vehicle-specific flange fits SW20 turbo piping
• Estimated Weight: ~2.1 lbs / ~0.95 kg (kit)
• CARB / Emissions: Not CARB legal in some states

Included Components

• 1x Super SQV4 blow off valve assembly
• 1x Mounting flange adapter (vehicle specific)
• 1x O-ring and C-clip hardware set
• Assorted bolts, nuts, and gaskets for installation

Product Description

The HKS 71008-AT009 Super SQV4 Blow Off Valve Kit is a direct-fit, high-performance replacement for the factory blow off valve on the turbocharged Toyota MR2 SW20 with the 3S-GTE engine (1990-1995). The sequential dual-valve design uses a pull-type relief mechanism that cleanly releases excess boost pressure across a wide range of turbo conditions without common leakage issues.

Crafted with a robust die-cast aluminum body and a metal secondary valve, this SSQV4 unit delivers improved throttle response and an aggressive, signature turbo sound thanks to its triple-fin design. Installation is straightforward with the included vehicle-specific flange and hardware, making it suitable for enthusiasts who want reliable boost control and enhanced performance on street or track MR2 turbo setups. Please note this blow off valve may not be CARB legal in certain emissions-regulated regions.