Update:

As said, I went with the D2S. I got a Milwaukee version of a drimmel tool and used a cut-off wheel and burr to cut into the bottom surface of the main reflectors, and also the shrouds. I did not take enough time with the shrouds and so some of the gap is reflected by the main reflector. One of those things you can notice close up, but not at 4 feet.

So, indeed, the MH1 would have been a little easier.

The ballasts do go any 90 degrees, so that was no problem. I oriented them horizontally with each cord pointing the the center of the car.

I haven't fired them up yet.

Opening and Closing the lens to housing was easy-peasy.

I have a little more polishing to do on the lenses and then I'm going with a Lamin-x film covering. I bought directly from Lamin-x, when they offered 40% discount, but Moss has them at a reasonable price. I hope they serve better than the poly-urethane did.

Did you need resistors for these?

I had issues with my NB1, but corrected it with a new relay....... Never liked the idea of resistors.

Never bothered to post this here: https://forum.miata.net/vb/showthread.php?t=638077

Agreed. By 'relay' do you mean 'flasher'? And do you have a P/N of one that works?

I've done a modified/piecemeal H1 setup on the purple car. Came out great. I used Mori H1 mini projectors, their relay harness thing, some $10 XB 3000k bulbs (LMP style, y0) on closeout from TRS, and some $50 ebay ballasts. I think i spent about $180 on the whole thing and it works great.

Well enough that with their July 4th sale i bought another set for the wife's new street NB1, i just did the full TRS kit this time around.

I have a big boy 55w D2S kit sitting here to do on the 98 Montero as well.

As for the flasher, i haven't tested it yet, but i bought a $1.27 "LED flasher" from chinabay that's sitting on my desk. I'll try to test it this week and report back. Tag me if you don't hear from me.

Yes I mean flasher, that thread I linked has a link to the flasher I started with and modified. No off the shelf parts for NB1 but think there was a part number or link posted in that thread for one that works for NB2.

I have the 1157 switchbacks from TRS in my NB1. I just replaced the flasher relay with an LED compatible flasher (Part Number: CF13JL‑02). It was not 100% plug and play. the spacing of the connectors wasn't identical to the OEM mazda plug, so I simply de-pinned the socket and manually installed the 3 connections (putting heat shrink over them to isolate them. Zero issues with it. Works great. Way cleaner than resistors.

Any chance you have pics of what those lights look like? Trying to decide if i want them for my NB1s. I suppose for the money, it'd be worth buying to find out, but i'd rather see an example first. :)

They are on close out at TRS, so I got 2 sets delivered for $13. Figures I'd just try them for that.

EDIT: Wrong bulbs. I'm passing on Switchbacks for now.

heres a pic of them off.. not the greatest pic i know, but it's hard to even make out a bulb behind the diffused lens
Attachment 180676

here they are on with switchback halos
Attachment 180677

Wait 13 bucks for the projectors!?

I only see the acme ones on closeout and those are D1S/D3S. I see dummy H1 projectors... But what does dummy imply here? That they'd be perfect for me?

Ok thanks!

So when you have your turn signal on, they switch to flashing amber, then when off, back to the solid white?

Bruh read bruh.

Foiled again...

Just to make sure we're on the same page... we're currently on a side conversation about 1157 switchback led turn signals.

The easy NB1 projector kit is the following:

https://www.theretrofitsource.com/co...C50560%2C47390

Select desired shrouds, desired bulb temp, and the H4/9003 bi-xenon control harness.

Enjoy.

If I may threadjack very slightly...

In the past, the question "are these aftermarket LED headlight bulbs any good?" has been easily answered: No.

I note that TRS is now selling a few that, judging solely by the specs, would seem to be worth looking into: https://www.theretrofitsource.com/hi...o-2stroke.html

Anyone here ever seriously look into something like this?

Yes, switchbacks function by being white during running light operation then blink orange when turn signals are activated.

LED bulbs still haven't caught up to HID's in terms of output (beam distance and width). No warm-up time for your bulb is a benefit, but I'd still go HID. The LED tech will catch up eventually, but its not here yet. Just my .02

Got my switchbacks. They don't seem to work. If my lights are ON, they're on all the time and don't respond to signals. If lights are OFF, they respond to signals only. They ARE really bright, but don't work properly.

Any ideas?

Are you running either an LED flasher relay (no-load flasher) or resistors? If your running resistors, how do you have them wired?

I'm not yet, i wanted to see what they were going to look like before i dealt with that. Shouldn't the resistors just make them flash normal speed instead of fast? The "not flashing" thing i can either figure out or not, but these do not appear to be white/amber switchbacks.

I currently have LEDs in that location already, i just leave the hyperflash because it makes the car more visible.