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Air and Fuel› Superchargers, Turbochargers and Components

Tomei

B/B Turbocharger Kit for Nissan RB25DET/NEO6 450 HP

$1,780.00 $1,602.00 Save $178.00

SKU: TB403A-NS06A

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In Stock
Ships by Sep 9
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$100 Minimum Order
30 Days Return
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Overview

The Tomei TB403A-NS06A is a B/B (Ball Bearing) Turbocharger Kit designed for Nissan RB25DET and RB25DET NEO6 engines. It is compatible with Nissan 32, 33, and 34 Skyline models.

This turbocharger features a CNC billet aluminum compressor wheel with a 54.8mm ind. diameter, 76.2mm exd. diameter, and a 52 trim. The turbine wheel is cast with a 67.0mm ind. diameter, 58.8mm exd. diameter, and a 77 trim. It has a target horsepower of 450 HP and an initial boost setting of 1.0 kgf/cm2.
Show original supplier description
The Tomei ARMS BX8265 Turbocharger Kit (part # TB403A-NS06A) is engineered for enhanced performance in Nissan RB25DET and RB25DET NEO6 engines, specifically fitting the 32, 33, and 34 Skyline models. This kit utilizes a ball bearing system for improved spool and durability. The compressor wheel is constructed from A2618 material using a CNC billet production method, featuring a 54.8mm inducer diameter, 76.2mm exducer diameter, 52 trim, and 6/6 blades. The turbine wheel is cast from K418 material, with a 67.0mm inducer diameter, 58.8mm exducer diameter, 77 trim, and 9 blades. The turbocharger is designed for a target of 450 horsepower, with an initial boost setting recommendation of 1.0 kgf/cm2. The compressor housing has a 55.8mm inducer diameter, 42.62mm exducer diameter, and a 0.57 A/R. The turbine housing features a T3 inducer diameter, RB25 exducer diameter, and a 0.57 A/R.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandTomei
Part NumberTB403A-NS06A
CategoryAir and Fuel

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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