Plazmaman RB25 R33 Top Half Inlet Plenum

This Plazmaman bolt on inlet plenum is designed to suit Nissan's RB25DET R33 Skyline.

There is also enough clearance with this design to be used in most engine converted vehicles. Developed to suit all street, strip, drift and high horsepower applications, with a capability of flowing over 1000hp. By simply bolting this plenum onto the factory runners, and tuning accordingly, expect to see an increase in throttle response, and a power gain of 35+hp. The power gain is sustained throughout the entire mid and top end rpm range. Included with the plenum is a stud and bolt kit, and complete fitting instructions.

Please allow 4-7 weeks to manufacture this product.

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!**

Product Info

CNC machined base with handcrafted dome top plenum, internal ram tubes and 4.5L capacity. All professionally Tig welded in house!

The best part is, this plenum eliminates the factory crossover piping, meaning shorter intercooler piping and quicker boost response. Plus, it is much more ergonomically appealing than the factory intake manifold. Our bolt on plenum utilises the factory throttle cable, factory idle motor and factory throttle body, although it's recommended that you use one of our billet 66mm or 72mm throttle bodies to take full advantage of this plenum.

These manifolds can be supplied in 3 finishes, Raw, Polished, or Powdercoated Black, for the stealth look.

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.

Payment Methods

We accept all major payment methods including Visa, Mastercard, AMEX & Paypal.


looking for something specific?

Contact Us Today!

We can help with any project you are working on!

Need a specific part?

Just let us know what you are looking for and we will get back to you within 2-3 business days!