The engineers at Plazmaman Australia headquarters had only one thing in mind when they designed the Nissan RB25 Inlet manifold - to release a premium quality item that ticks all the boxes. Plazmaman inlet manifolds utilise some of the most advanced manufacturing techniques. Multi axis HAAS CNC machines ensure that all the one piece billet bases have tolerances to within .005. The inlet manifold dome utilises a hard temper 3mm sheet alloy surface that has been made to shape in house with advanced forming techniques.
This RB25 manifold is designed as a standalone manifold, so the factory Over the rocker cover Inlet is totally removed, and this manifold is bolted directly to the cylinder head using a single throttle body operation to maximise airflow. This manifold can be equipped with a selection of our Plazmaman billet universal or the increasingly popular Bosch Motorsport DBW throttle bodies, which can be selected whilst ordering,
An added feature of these manifolds is that they can be ordered and manufactured specifically to suit 6, or 12 injector operation. For both options, we include one of our CNC machined fuel rails, in either single feed, or dual feed. Both of these fuel rail styles accept 14mm top feed injectors. The fuel rail comes with all mounting hardware, including stainless steel fasteners and CNC spacers/brackets.. Our billet manifolds are offered with, or without, a provision for the factory IAC (idle air controller) to be used remotely.
This Plazmaman Inlet now also comes with a special designed under inlet WATER RAIL. This ensures that the water flows through the head back to the radiator exactly the same way Nissan Intended it to. This is the only aftermarket inlet manifold on the market that has this feature, and we guarantee zero air locks if plumbed exactly as Plazmaman advises.
These manifolds can be supplied in 3 finishes, Raw, Polished, or power coated Black, for the stealth look.
If you have a deadline to meet, please confirm that we have stock ready for dispatch to avoid disappointment!
FREE SHIPPING ON ORDERS OVER $1200!**
As with all Plazmaman inlet manifolds, these are packed with many features, such as:
Built-In Ram Tubes
6061 T65 Aluminium.
6 or 12 Injector options
O-ring port seal design.
Precision CNC machined billet base, with hand made 3mm smooth design plenum dome.
Professionally TIG welded in house by our highly experienced fabricators.
Ergonomic appeal and lifetime structural guarantee.
100% Made in Australia
Shipping & Returns
Free Shipping does not apply to some heavy items, for example: Wisefab & BC Racing are included for free shipping, NPC and some PWR are not included.
Shipping times may vary depending on your location, however the majority of packages are received within 3-5 business days of dispatch!
We dispatch 5 days a week, and aim to process all orders within 24hrs*
On weekends and public holidays, orders will be processed next business day.
*order processing may be delayed during sale events or holiday periods.
We accept all major payment methods including Visa, Mastercard, AMEX & Paypal.
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