Walton Motorsport Nissan CA18 Exhaust Manifold 40 - 50mm Port Size (NO flange fitted) (G-Series G25/G30/G35 & GTX30/35) & Turbosmart F2 Frame (62&66)

As the CA18 engine begins to regain popularity, especially in the hybrid 2.0 version we decided it was time we offered those guys a manifold and solution and here we present you with the Walton Motorsport Top Mount CA18 manifold.

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

First and foremost not all 304 Stainless steel is created equal, we carefully selected the exact specification of tubing that we use as the whole product can fail by simply using poor quality materials, in some instances we have seen tubing split along the seam when subject to the repeated high temperature of exhaust gasses.
Our flanges are all cut from 10mm thick 304 Stainless steel, we use water jet cutting over traditional laser for increased accuracy along with an aesthetically neater cut (we take great pride in our products).
At the head end of the manifold we 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, we use a built in house custom merge collector, what sets ours apart from the competition is that we 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.
We 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 our 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.

We can accommodate a huge range of custom options such as alternative flanges, or a twin scroll design as used on the current Driftworks S15, 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