MX-5 Miata NA Randall Cowl Bulkhead Intake - image

Files (4)

MX5_Intake_Bulkhead_Adapter-57mm.stl

STL

136.8 KB

MX5_Intake_Bulkhead_Adapter-63mm.stl

STL

136.8 KB

MX5_Intake_Bulkhead_Adapter-70mm.stl

STL

136.8 KB

MX5_Intake_Bulkhead_Adapter-76mm.stl

STL

136.8 KB

Print plan

Exact totals not supplied

Print setup plan

Useful setup guidance without pretending STL byte size can predict filament, cost, or print time.

4 model files

Material plan

PETG / ASA

Published material guidance; still check heat, UV, load, and printer compatibility.

Starting setup

25% infill

A planning starting point only; wall count, orientation, and geometry often matter more than infill.

Final totals

Confirm in slicer

Choose the needed variant, then slice it for grams, cost, and print time.

Saved setup guidance is used for material, infill, support, and per-file recommendation text; editable numbers are planning estimates only.

Reference shelf

Recommended filament for this print

Product references matched to the published material guidance. Confirm diameter, heat resistance, colour, and printer compatibility.

Referenced item	What to verify	Price & availability
PETG filamentAmazon · Affiliate link	Amazon product page for 1.75 mm PETG; confirm colour, spool size, print temperature, seller, and delivery region.	Check price at Amazon
ASA filamentAmazon · Affiliate link	Amazon product page for 1.75 mm ASA; use an enclosure and suitable ventilation, and confirm seller and regional availability.	Check price at Amazon

Affiliate disclosure: if you buy through an eligible link, 3DPrintedCarPart may earn a commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Confirm product specifications, compatibility, seller terms, and vehicle safety before ordering or using anything. Amazon may redirect you to a nearby supported store; otherwise the original Amazon.com page remains available.

Unsure which one fits? Read the automotive filament guide.

Mechanical/Functional

MX-5 Miata NA Randall Cowl Bulkhead Intake

0 downloads65 views0 quality score

Print this part

Use the part context as a starting point, then confirm geometry-dependent values in your slicer.

Files

4 hosted model files

STL

Material start

PETG or ASA for durability and heat resistance

Saved part guidance

Strength start

20-30% infill for a balance between strength and weight

Saved part guidance

Orientation / supports

verify in slicer

Exact totals

Slice for grams + time

Model geometry and final settings determine both

Vehicle exposure

Cabin/interior use; avoid high-heat zones

Open the STL, 3MF, or OBJ model in your slicer before printing. Exact grams, time, and final support placement come from the actual slice. Test-fit and heat-check the part before installing it in a vehicle.

License & use

CC BY-SA

Commercial use allowed

Attribution required

The file license permits commercial reuse, subject to any applicable attribution or share-alike terms. License status does not verify vehicle fitment, OEM rights, design patents, or safety.

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3DPrintedCarPart

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Description

This design is heavily inspired by danobrien's design which replaces the non-ABS washer bottle and uses it's bolt holes in the firewall. This is my own design as I required a smaller adapter to fit 57mm/2¼" piping to connect to the stock airbox. It's currently a work in progress but my prototype did fit perfectly (see image) but the larger sized adapters might need adjustments to clear the weld lines, so I've provided the FreeCAD project file. 57mm / 2¼" piping 63mm / 2½" piping 70mm / 2¾" piping 76mm / 3" piping