Spool Performance Billet Manifold Gen 1 B58 Top Mount Turbo Kit
Spool Performance is proud to introduce a unique top-mount turbo kit featuring a 5-axis machined billet manifold. This manufacturing method has allowed us to create a unique manifold with extremely short runners, which preserve maximum thermal energy up to the turbine and avoid common issues of cast manifolds such as cracking and excessive weight. The 5-axis machining has also enabled the creation of highly efficient flow by balancing the design of the wastegate runners. This ensures excellent boost pressure control with a single 45mm wastegate. The result is a fast-spooling, lightweight manifold with virtually no back pressure and easy installation. The modular design of the manifold allows for versatile turbo options, and the kit is available with both Spool IFX water-cooled ceramic ball bearing turbos and Precision air-cooled turbos.
Manifold
After countless hours of design, we created a highly efficient twin-scroll flow with 5-axis machined wastegate runners, allowing for precise boost control. The manifold is milled from high-strength alloy steel billet blocks, which expand minimally with heat. Machining the flow channels directly into the block allows for short yet uniform runners to the turbine housing, preserving maximum thermal energy and reducing turbulent flow losses. This ensures faster spooling and very low back pressure at high RPMs. The modular design quickly allows for different variations for various turbos.
Wastegate
Wastegate runners are one of the most underestimated yet critical parts of a manifold. Through CFD optimization, we designed the wastegate runners to balance the flow between the turbine runners and the wastegate runners. This minimizes turbulence when the wastegate is closed. We use only a single 45mm wastegate in the system, reducing the number of components.
Turbos
The kit is available with several PTE air-cooled and Spool IFX water-cooled ceramic ball bearing turbos:
-
SPOOL IFX-900 Ball Bearing Water Cooled – 900 HP – lifetime warranty
-
SPOOL IFX-1050 Ball Bearing Water Cooled – 1050 HP – lifetime warranty
-
SPOOL IFX-1200 Ball Bearing Water Cooled – 1200 HP – lifetime warranty
-
PTE 6466 Gen2 Ball Bearing Air Cooled – 900 HP – 1-year warranty
-
PTE 6870 Gen2 Ball Bearing Air Cooled – 1100 HP – 1-year warranty
Accessories and Delivery Contents
The kit is designed as a true plug-and-play solution. It includes AN fittings for oil feed and return, water feed and return (Spool IFX) or bypass hose (Precision and others), and an optional catch can solution. The kit also includes a corrosion-resistant 304 stainless steel mandrel-bent downpipe and dump tube. We offer the compressor housing in your desired color (default red) and Cerakote thermal coating for hot parts.
Contents:
-
Billet manifold
-
45 mm Turbosmart wastegate with springs
-
304 SS mandrel-bent downpipe + clamps
-
304 SS mandrel-bent wastegate dump tube + clamps
-
Aluminum mandrel-bent lower charge pipe
-
Plug-and-play water feed and return / bypass
-
Plug-and-play oil feed and return
-
T4 manifold bolts and nuts
-
Silicone hose
-
Hoses and fittings for boost control (solenoid not included)
Accessories:
-
Cerakote thermal coating for hot parts
-
Custom color for compressor housing
-
Upper charge pipe to replace original
-
High Side catch can
-
Low Side PCV plug and intake manifold plug kit