Stage 2 Sidewinder Turbo Kit for Acura RSX - Mid-Tier K-Series Performance
Step up to our Stage 2 sidewinder manifold turbo kit designed specifically for K20 and K24 engines in 2001-2006 Acura RSX. Features upgraded GT3582 (6268) journal bearing turbo rated at 600HP and sidewinder manifold design for improved flow over log-style manifolds.
Performance Specs
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Power Capability: 450-500+ horsepower (with proper tuning and supporting mods)
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Boost Range: 10-15 PSI with 44mm V-band wastegate
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Turbo: GT3582 (6268) Journal Bearing - rated at 600HP
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Spool: Improved spool vs log-style manifolds thanks to sidewinder design
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A/C Compatible: No - A/C delete required
What's Included - Complete Stage 2 Kit
- GT3582 (6268) Journal Bearing Turbocharger - 600HP rated
- ATK T3 Sidewinder Turbo Manifold (44mm V-band)
- Front Mount Intercooler (FMIC)
- Pre-bent and flared intercooler piping
- Heavy-duty silicone couplers
- Heavy-duty T-style clamps
- Blow Off Valve
- ATK 44mm V-Band Wastegate
- 4-bolt downpipe flange
- 44mm wastegate downpipe flange
- Turbo oil feed line
- K-Series Oil Pressure Sensor Adapter V2
- Turbo oil return hose kit
- Miscellaneous gaskets and hardware
Stage 2 Features
- ✅ Sidewinder manifold design for better exhaust flow vs log-style
- ✅ GT3582 turbo rated at 600HP (larger than entry-level T3/T4)
- ✅ 44mm V-band wastegate for precise boost control
- ✅ Optimized for 450-500HP power range on stock internals
Fitment Guide
| Year |
Make |
Model |
Engine |
Notes |
| 2002-2006 |
Acura |
RSX Type-S |
K20A2, K20Z1 |
Direct fit |
| 2002-2006 |
Acura |
RSX Base |
K20A3 |
Direct fit |
| Various |
Honda/Acura |
K-Series Swaps |
K20, K24 |
May require custom piping |
Installation Notes
Difficulty: Advanced | Estimated Time: 12-16 hours
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A/C Delete Required: Sidewinder manifold is NOT compatible with factory A/C
- Some applications may require coolant adapter (sold separately)
- May require modifications, fabrication, or welding for optimal fitment
- Professional installation strongly recommended
- Requires ECU tuning for safe operation
- Stock internals can handle 450-500HP with proper tuning
Supporting Mods Required
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Fuel System: 750-1000cc injectors, Walbro 450 fuel pump, aftermarket FPR
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ECU: Hondata KPro, AEM Infinity, or Haltech recommended for this power level
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Clutch: Stage 2-3 clutch rated for 450+ ft-lbs torque
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Exhaust: 3" turbo-back exhaust with high-flow cat or test pipe
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Tuning: Wideband O2, boost controller, oil pressure/temp gauges
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Optional: Coolant adapter for some applications
FAQ
Q: What's the difference between Stage 2 and Stage 3?
A: Stage 3 features a ceramic ball bearing turbo with billet wheel (vs journal bearing), and is designed for 500-600+ HP builds with built motors. Stage 2 is ideal for 450-500HP on stock internals with proper tuning.
Q: Can I run this on a stock motor?
A: Yes! The K20A2/Z1 can handle 450-500HP on stock internals with proper tuning. K20A3 should stay under 350HP on stock internals. Always tune conservatively.
Q: What's the advantage of sidewinder manifold?
A: Better exhaust flow, faster spool, and more compact design compared to log-style manifolds. The sidewinder design routes exhaust gases more efficiently.
Q: Do I need a standalone ECU?
A: Hondata KPro is highly recommended for this power level. Hondata S300 can work but KPro or standalone (AEM, Haltech) gives you more tuning flexibility and safety.
Q: Will this fit my K24 swap?
A: Yes, this kit works with K20 and K24 engines. K24 builds can make even more torque. You may need custom intercooler piping depending on your chassis.
Q: What power can I realistically make?
A: K20A2/Z1 (Type-S): 450-500HP on stock internals. K20A3 (Base): 300-350HP on stock internals. K24: 400-500HP on stock internals with proper tuning.
Q: Is this worth the upgrade over entry-level kits?
A: If you're targeting 450+ HP, yes. The GT3582 turbo and sidewinder manifold provide better performance and spool. For 350-400HP builds, entry-level may be sufficient.
Professional installation and tuning required. May require fabrication or welding. Coolant adapter may be required for some applications (sold separately). Not legal for street use in all areas - check local regulations. Stock photo may not be exactly what you receive.
