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HKS RB26DETT 2.8L Performance Kit (21004-AN004)
If you own a Nissan GT-R or Skyline equipped with the RB26DETT engine, the HKS 2.8L Performance Kit (21004-AN004) is your go-to solution for enhancing low and mid RPM torque. This kit is tailored for enthusiasts looking to optimize their engine's performance based on their unique specifications. Choose from three distinct stages to suit your needs: Step Zero, Step 1, and Step 2.
Step Zero Features:
- Pistons: Crafted from high-spec forged material for durability.
- Connecting Rods: High-spec forged H-beam design, ensuring maximum strength. WPC shot-peening enhances durability and reduces metal fatigue.
- Crankshaft: Fully counterweighted and made from premium forged material, optimizing engine response.
This step is perfect for those looking to overhaul their standard internal components.
Step 1 Features:
- Pistons: High-spec forged construction.
- Connecting Rods: H-beam design for superior strength, with the option to use stock rods.
- Crankshaft: High-spec forged material, fully counterweighted for balance at high RPMs; ideal for GTIII-RS turbochargers with a target RPM of 8500.
Step 2 Features:
- Pistons: Forged with nickel plating to prevent knocking and enhance ring stability. Molybdenum-coated skirts reduce friction.
- Connecting Rods: High-spec forged H-beam design, with WPC shot-peening for added strength.
- Crankshaft: High-spec forged material, fully counterweighted, with hollowed pin journals to reduce rotating mass for improved throttle response; best paired with GTIII-RS and GTIII-4R turbos, targeting 9000 RPM.
Fitment:
- Nissan GT-R RB26DETT (1989-2002)
- Nissan Skyline RB26DETT (1989-2002)
Customer Feedback:
Many users have noted significant improvements in engine responsiveness and torque delivery, especially in low to mid RPM ranges. The quality of the components is often praised, with several customers highlighting the reliability of the HKS brand during high-performance applications.
Other Part Numbers:
HKS #hks21004-AN004
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Since its beginning, HKS has been committed to providing well-integrated, reliable,and environmentally sound performance systems. Mr. Hasegawa's strong leadership, engineering genius, creativity and willingness to listen to customers are the pillars of the company's success. Monitoring consumer reaction and input on issues pertaining to material quality, external appearance, sound quality, and of course, performance, HKS stays in tune with automotive enthusiasts' needs. Moreover, HKS' products are designed to be user friendly for easy installation.
HKS provides a warranty to the original purchaser of HKS exhaust systems against defects in materials and workmanship for a period of one year. The warranty applies only for vehicle specific exhaust systems. Other products such as metal catalyzers, front pipes, exhaust manifolds, and center pipes are not covered.
| Sale price | None | |||||||||||||||
| Wholesale price | $8,455.93 | |||||||||||||||
| Shipping |
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| Product Added At | Monday 12 December, 2022 | |||||||||||||||
| Product Modified At | Friday 11 July, 2025 | |||||||||||||||
| Imported By | ETLOverride | |||||||||||||||
| Last Edited By | Turn_API | |||||||||||||||
| View In Admin |
| Carb Approved | No |
|---|---|
| Carb Number | - |
| Epa Status | N/A |
| Prop65 | Unknown |
| Carb Required | - |
| Vendor | Inv | Cost | Retail | Jobber | Strict MAP | Core | Updated | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Turn 14 | $7,166.04 | $8,980.00 | ? | $8,531.00 | ? | 2025-07-11 10:25:02 |
