Ships for free!
Rating:
75% of 100

As low as $299.00

Part number
09-6002x
The best coolant reroute on the market - unless you have a turbo. Then it's really the only coolant reroute on the market!
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  1. Good design but terrible plumbing.
    Rating
    80%
    The install went pretty good. My gaskets did not have the adhesive. Soooo... after a time of trying to peel the backing off I gave up and used RTV.

    the tube to the front could use a little more refinement. I would love a hard line or the IL motorsports formed line. It is close to the throttle and AC parts.

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  2. Doesn't include clamps for silicone, upper radiator hose
    "Includes all required hoses/lines, fittings..." WRONG, it does not. The instructions say to reuse the OEM spring clamps if possible on the silicone upper radiator hose. The hose diameter is 1 and 13/16" OD. Even with the spring clamp fully compressed and squeezing the ends of the hose the clamp cannot be forced onto the hose. It's just too much circumference for the NB2 clamps. It would be nice if two constant torque clamps were provided.

    The rear reroute block is some impressive machining and great quality. I'm off to buy some clamps after fighting to get the radiator hose weaved next to the intake manifold (MSM). I removed two brackets and used my bench grinder to create extra clearance. One bracket was on the back of the intake near the firewall holding a vacuum solenoid. I ground the bottom corner to match the manifold. The other holds the fuel pulsation damper or pressure regulator near the shock tower. I removed at about .25" and rounded over the corner. This bracket scratched the silicone tube while inserting and removing trying to find the best pathway. An extra clamp or two for abrasion protection or some old, thinner hose cut and zip tied in place might work better than using the extra silicone hose because it is so thick. The hose pushes hard on the A/C lines, OEM oil separator drain hose (MSM turbo), fuel lines, and the A/C block/lines near the throttle body. It seems a metal tube would be a better choice as it'd be smaller OD and could be held with two Adel, "P" clamps attached to the intake manifold. Even with two more clamp (failure) points, it'd be less likely to rub through and dump coolant plus applying abrasion protection would be easier with a smaller OD...less pressure on surrounding parts.

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  3. Good - to a point.
    Rating
    60%
    With an MSM I liked the idea of this re-route, as it has the turbo cooling integrated into the design. The machined part with the thermostat mounted at the back of the head is well thought-out and executed. The rest, well to be honest, the rest is an undergraduate effort at best. The instructions had me route the small turbo coolant line under the windshield squirter reservoir, the only problem was, the hose interfered with re-installing the reservoir! That was solved by placing the hose outside the reservoir bracket.
    The supplied bolt heads are not the normal Miata 8/10/12/14/17/19mm sizes. Oh, McMaster Carr. . ?
    The supplied hose from the re-route to the radiator is straight, not a formed hose and it does not like to make either turn - from the back to the side, nor the jog around the throttle to the radiator inlet and it kinks in both places. I made a flexible collar from some 12ga. Romex, similar to a tubing bender, that works to prevent the kink at the bend in back, but not for the sharper double bend at the rad. The hose also needs to be restrained from encroaching on the throttle, I used multiple zip-ties through a hole in the fender looped around the hose to persuade it from straightening out into the throttle. That arrangement looks janky. It just does. I see that both Cobalt and I.L. Motorsport make a formed hose specifically for a Miata coolant re-route. FM would do its customers well by supplying with their kit which ever of those two hoses works best. I know the straight hose probably works well if an FM crossflow rad is installed, but what about those of us who don't have one? Maybe I'll get to that sometime, but I'll be trying the Cobalt formed hose first. At $100, it's a simple way to clean up an unfortunate engineering choice by FM.

    Note from FM: we've not come across the problem with the water reservoir. We do admit that the kit is designed to work best with a crossflow.

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    Posted on

  4. Missing parts
    Rating
    20%
    Could not install.
    product send to me incomplete. I'm sure its a great product like claimed by FM but this was sent to me with missing parts.

    Note from FM: we have tried to reach Austin to find out more and see if we can solve his problem, but we have not been able to make contact. All of these kits are inventoried before they go out.

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    Posted on

  5. Amazing Part
    Rating
    80%
    I consistently drive my miata across the US and it would get very hot for long stretches of highway with ac going. I have never even gotten close to overheating since installing the reroute. The reroute itself is a high-quality part and the instructions and video are very clear and helpful. Only gets 4 stars because the gaskets did not come with adhesive on them like the instructions say so I had to get some spray adhesive. In addition, it would have been nice to have a worm gear hose clamp for the water outlet of the reroute because getting the stock clamp on there was an absolute pain.

    Note from FM: We use the factory spring clamps where possible because they are more reliable than worm gear hose clamps for cooling applications. This is because they can adjust for temperature expansion and contraction.

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    Posted on

  6. Solid product
    Rating
    80%
    Overall good product. Video helped a lot. The housing is a piece of artwork. Toughest part of the whole install is getting a clamp on the main water outlet. Eventually settled on a worm clamp and after a lot of finesse finally got it tightened using a 7mm small wrench on the clamp screw.
    Lost 1 star due to the fact that there was no adhesive on either of the supplied gaskets as described in the instructions and as advised on the videos. Its impossible to install the housing without the gasket stuck in place. As a result I had to go out and buy $12 worth of 3M spray adhesive which caused a delay to the project.

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  7. Overall awesome product
    Rating
    80%
    Overall really good product. I did have to retap the large hole on the thermostat neck block off plate, because the boot absolutely would not thread into it. By the grace of God I had the correct BSP tap from when I tapped my oil pan for the BSP turbo drain fitting from kraken. I would have been less than happy if I didn't have this tap but probably would have just had it welded shut. After that the included bolt threaded right in. Also seems like the bleeder is finicky. I had it tightened down as far as I feel comfortable and it was still leaking about a drop every several seconds out of the bleed hole. Tightened a little more than I wanted to and seems to have buystopped but we'll seem.

    Note from FM: that hole is an M16x1.5 thread, not BSP. We have adjusted the instructions to make it easier to get the bolt started in case of any minor thread deformation.

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  8. Great for 1.8 turbo miatas
    Rating
    100%
    Easy install if you have the engine on an engine stand, which is the way I installed this. Instructions are decent. I must say they could include a hose clamp for the large hose going to the radiator. When I got to the gasket install the instructions say something about peeling off and placing the sticky side of the gasket to the reroute. None of my gaskets had an adhesive side. Don't know how much that matters. It's close to the firewall but very manageable. Love the one piece design. I know it would cost a lot more but I would love to have a pre-bent hose instead of the vibrant straight. It would make this so much cleaner. Something like the il Motorsports re route. Would definitely recommend to anyone to has a 1.8 turbo Miata! The ports on the reroute is the reason I purchased this setup. Two thumbs up for sure and just a few small complaints but no regrets with my $350 purchase.

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  9. Expensive but Effective
    Rating
    100%
    I installed this kit on my forged 1.8bp before installing it into the car, making it extremely easy to install. Coolant temps now read 175 degrees F when im driving and spike to 185 at idle. The only time the engine has been able to get past 200 was after the car was turned off. I am running this with a stock radiator/fan, naturally aspirated for now. The bleeder is a little tricky at first but just use a small 1/4 inch wrench and its possible. Thread sealer on all threads! They included enough piping to get from the reroute and stretch under my skunk2 manifold and back up to the rad comfortably. This reroute has lowered my temps and cleaned up my engine bay. I would highly recommend this for anyone that is looking to go FI now or down the road (as they include turbo water feed block offs). Pricier than other reroutes in the market but much better engineered. Well worth the price if you want the best for your engine.

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