Introducing the PrintablesAuto N52 Velocity Stacks
Unlock the full potential of your N52 engine with the PrintablesAuto Velocity Stacks! Engineered to deliver aggressive induction sound, increased torque across the entire rev range, and enhanced top end power output. With supporting modifications, targets of 250+ whp and 300+ hp (crank) are within reach.
The N52 holds a unique distinction as the one of the only production gasoline engine to operate without a traditional throttle body. The Velocity Stacks leverage the factory Valvetronic system to replicate the performance characteristics of individual throttle bodies, using entirely stock hardware.
Design & Construction
Engineered with both performance and serviceability in mind:
∙ The Split runner design divided in sets of two, with bolt hole placement carefully considered for straightforward installation and removal
∙ Blank MAP port included for configurations where it is not required
∙ Threaded heat inserts on all hardware points for long term durability through repeated installation cycles
∙ Printed in PAHT-CF (High Temperature Carbon Fiber Nylon) — offering exceptional strength and heat resistance superior to most consumer-grade printing materials
Technical Notes
∙ Air filtration - The filter cover bolts from the rear of the manifold via M5 screws. Filtration uses a metal internal mesh for structural rigidity, paired with two layers of foam filter media. We recommend removing the air filter for top end performance.
∙ Fuel vapor port is built into cylinder 4 via a printed 9mm barb fitting, designed for a standard 3/8” hose. Do not over tighten, will need to remove plastic hard line and adapt.
∙ Intake manifold gaskets and metal dowels are not included. These metal dowels are required to prevent gasket creep and manifold compression damage.
∙ Air filter ships dry, oiling and ongoing maintenance is the responsibility of the customer with replacement available if needed as a separate purchase
Required for Installation
∙ IAT Relocation Kit (not included) (Turner Motorsports)
∙ A healthy, well-maintained engine — no unresolved O2, VANOS, Valvetronic, or other fault codes/CEL
∙ Metal alignment dowels from any N52 intake manifold (OEM, 3IM, or N54)
Tuning Information
At this time we are partnered with Chaos Calibrations for tuning of this manifold setup! Chaos Calibrations offers an Android app for tuning, logging and flashing your bimmer!
Order Information
All units are made to order. Approximately 1-2 weeks to ship. Velocity Stacks installed and running on multiple vehicles
For off-road use only. By purchasing, the customer acknowledges this is a 3D-printed component and accepts all associated considerations.
