Walton Motorsport Nissan RB Exhaust Manifold (RB20 RB25 RB26) 50mm High Priority/60mm Port Size (NO Flange Fitted) Tial/GBT V-band - Type A

In our opinion one of the best sounding 6 cyl engines available and one of the favourites for tuning the humble RB series engine has a top mount manifold option from Walton Motorsport. The flange allows fitment on RB20, RB25 and RB26 engines. RB30 is available on request.

Look around the market and there’s no shortage of RB Manifolds available, what sets the Walton Motorsport version apart from the competition is their construction methods.

First and foremost not all 304 Stainless steel is created equal, They carefully selected the exact specification of tubing that they use as the whole product can fail by simply using poor quality materials, in some instances they have seen tubing split along the seam when subject to the repeated high temperature of exhaust gasses.
Walton flanges are all cut from 10mm thick 304 Stainless steel, using water jet cutting over traditional laser for increased accuracy along with an aesthetically neater cut.
At the head end of the manifold they push the tubing all the way through the flange and TIG weld each side, followed by a session with finishing tools to create a smooth port for the gasses to freely flow through. This greatly increase the durability of the manifold over just welding the tube to the face of the flange.
Back at the Turbo, Walton use a built in house custom merge collector, what sets Walton apart from the competition is that they TIG weld inside and out, then port the inside back to a smooth point, this improves gas flow as well as adding a large amount of strength, without welding the inside of the collector there is always a danger of small fragments breaking off at high temperature and making their way through your expensive turbo.
Walton have a big emphasis on strength and durability, and as a result offer a lifetime warranty. Many of our competitors also offer this, however with the increased strength of walton motorsports products, we expect you to never use this because even though you are covered, its still a big hassle and potentially expensive if it breaks during an event to remove for replacement when it could have been avoided in the first place.

Walton can accommodate a huge range of custom options such as alternative flanges, or a twin scroll design, to discuss your exact requirements get in contact.

High quality 304 Stainless steel tubing
Fully Purged during TIG Welding
Merge Collector – Welded inside and out for strength and durability
Fully Smoothed Ports – For optimum gas flow
Flange Position Ideal for large or Small turbos
44mm Wastegate Port (others available on request)
Lifetime Warranty against manufacturing faults and defects
Ceramic coating available on request