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SOLID MODELAudio & Synth10-Sept-2026

NA/NB Miata Exhintake Cam Gear Drill Guide

miatamayonnaise
miatamayonnaise
2 Files
stl Format

Description

BP4W and BP05 guys likely know about the Exhintake cam swap, and when I found out that a buddy had an extra exhaust cam, I started doing some research to do it on my car. After a bit of digging, I could only find a printable piece of paper to cut out and tape to the cam gear for the 197.5-degree dowel pin hole, which I personally didn’t approve too much of. So I came up with this, a pretty nifty and easy-to-print and use drill guide for your stock cam gears to do an Exhintake mod with!

Tested and confirmed working from the front, and timed perfectly on my BP05 head in my 95. Just line the letters up on the tool with the cam gear, and snugly fit the guide into the gear, and get drilling! Recommend starting off with a drill bit that fits with as little wiggle room in the guide, then enlarging the hole once it's been made, if necessary.

Downloads

Exhintake_cam_gear_drill_guide_back.stl
120.0 KB
Exhintake_Cam_Gear_guide_Front.stl
129.2 KB