About



Output Improvements was founded in 1967, and has been racing and providing parts and services to racers ever since.

Buffalo, NY based Randy Zimmer has raced everything from local dirt mini stock to Can-Am and Indy cars on road courses, Pro Rally and RallyX.

RooDucts were developed in that environment and have proven to be a Must Have for any serious driver.

 

 

 

 

 

 

 

To contact me, just make a comment below, I’ll get back to you soon, Thanks!

1 fiat 9-4-77

2 fiat 5-28-78

3 rabbit 79

4 rabbit 5-14-81

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a rondel1

 

 

c rondel 4

d rondel 5

86 mosport 83c

j march milwaukee 87

l alfa milano 98

g mini stock 1 87

m vint alfa1 88

n vint alfa1 89

o firehawk alfa 89

niagara falls tq

nissan 96 mid ohio 96

r neon 94

u csr 94 ra

Mid-Ohio-1983-07-17-033

Mid-Ohio-1985-07-14-006

88 thoughts on “About

  1. I’m installing a set of 3″ roo ducts on my GR STi that a purchased years ago (shame on me for procrastinating). With the oval opening on the front of the ducts that connects to the hose coming from the fog lamps, I just wanted to verify that the intent if for the hose to go inside the duct and not fasten to the front? I am a little concerned that the hose may come out if it is just laying inside the duct without a way to secure it to the duct. However, getting a hose that will both fit to the fog light and front of the duct is also proving problematic. I’ve read the installation page, but I guess I”m a bit of a dummy and need some clarification. Thank you for your time and assistance.

    • Hi Jake,
      The oval will need you to crush the hose a tad but yes, it does go inside.
      If the hose is secure at the front, it’ll be fine in the duct without any attachment.
      That aluminum dryer hose at the hardware store works well for this.
      Let me know if you’re still having trouble.

  2. Bought a set of LCA ducts and after my first track day one of them it slit(unglued) in two pieces pictures available upon request.

  3. Looking to buy rooducts for a customer 97 legacy gt sedan. Was thinking of making some and removing the dogs but this might be better. Contact me as we have lots of Subaru customers

    • Hi,
      I don’t know what “dogs” are, (fogs?) but I can supply your brake ducts.
      They are $195 and I pay shipping.
      Discounts for five sets.
      You pay the freight on those.
      Lots of info at:
      How-To and Reference – RooDucts

  4. Randy, I have an Airr Force (Nascar I believe) blower cooling the engine on my Legends car. 4″ flanged inlet 3″outlet 7 amps. It has failed and can not find a replacement. Any ideas on a source? Thanks

  5. Randy,
    I have a friend with a 1993 Saab 900S. Original owner. She needs a brake booster and can’t find one anywhere. Any thoughts/sources? Thanks. Chris Belling

  6. Hi, can you do fuel air intake manifolds?
    I’m after one for a 2004 Husqvarna TE510, they’re impossible to find.

  7. Just wanted to mention that I have had the BRZ ducts for 1.5 years now and they are freaking amazing. I drive with them everyday.

    Every performance shop I go to, the first thing the mechanics say to me is “who made these brake ducts? Was it you?”. I then tell them it was made by Rooducts and literally like clockwork all the employees from the shops come out to inspect and compliment your ducts. My services now take 20 minutes longer because of this lol.

    But just wanted to let you know the love your products are getting here on the west coast. One shop is SGK Performance at Sonoma Raceway (Evo shop) and Lifes Good Racing (Viper shop). SGK Performance said they would stock your product if you made an Evo varient, as the stock Evo ducts are very firm and break with very little contact.

    Thank you again,

    • That’s really nice of you to send this note. I really appreciate the feedback and your taking the time, especially since the shops are too :). If either of those shops really want something made up, have them contact me and we can see what can be done. Thanks again! rz

  8. I am installing an ABW super wide body kit. Looking for ducting like yours. I can use dryer hose from the front of the bumper and fit to your ducting. The holes are 4.5 inches x 3 inches. What is the OD of your ducts at the front of the car? How do i pay and how long to ship them if they will work? Thx Jeff

  9. Hi,

    Any plans to develop kit for BMW M2 F87? This car needs a good solution as space on front for intakes very limited.

    Txs

  10. Any plans to make ducts for the FT86 platform (FRS, BRZ, Toyota 86) ?

    They would probably be a huge success. We have several customers who race these cars looking for solutions.

  11. Hi Randy,

    I’m looking for a pair of passive brake ducts for a 2006 STi with windshield washer bottle. Can you give me a price shipped to 37072?

    Thanks

  12. hi, i am from kuala lumpur malaysia. I have a 2002 GDB S202. i would like to buy a pair of your Ducts for my car.

    do let me know how to proceed.

  13. I want to buy 6 sets of brake ducts for the BRZ. Not the fan type, but the type that hangs under the control arm.
    I would also like to sell on my websites as well
    Please email me as soon as possible

  14. I have a factory set of brake coolers, that I am looking to get reproduced the OEM have been discontinued. Is this something you could quote? Vehicle is Trailblazer SS for reference.

  15. Hi Randy, I’ve got a friend who has a 2015 Mercedes CLA 45 and would like to have air ducts to his front brakes (and really needs them). Can you assist with this? Could anything be adapted from what you make or could make. We’ve got a few track days coming up and this would be really handy. Thanks.

  16. Hello from Switzerland. Could you please tell me if your NEW! GC/GD Aluminum Lower Control Arm Duct can fit à subaru wrx sti 2011 hatchback.

  17. hi , how much for the newer GD STI aluminum lower control arm brake duct?
    where does it bolt on? does need to drill holes to bolt it ?

  18. Hi there !

    I’m interested in the wishbone ducts.. how much would the be shipped to the uk please.

    Many thanks
    Dan

  19. Hi Randy, I have a fairly stock 2010 WRX Hatch (in Australia) which I want to take to the track. The front disks are the new DBA 4000 series slotted using Forza FP3 pads (tried PMu HC 800 but too much squeal). I’ve noticed they are getting incredibly hot just from hard braking around town so I know I’m going to need some cooling. What do you recommend for driving on tracks for 15 to 20 min sessions only?
    Thanks, Shaun.

  20. Hello Randy, I purchased Rood Ducts for by 05 STI and they worked very well. I now have a BMW Z4M. There appears to be a lack of a good brake ducting solution. The “so called” Brake (wheel well) air inlet from the front bumper is in a location to only cool the tire. I was considering taking off my front bumper and finding a path to use the existing air inlet with a custom made “scoop” to replace the factory one that is behind the bumper. The “custom-made” scoop would reroute the air path so a flex hose could be routed to the center of the hub/rotor. If could mock up a replacement duct with construction paper board and duct tape, would you be interested in scanning this into your 3D printer and making a prototype?
    you can review the brake duct threads on the Zpost BMW forum. If you would like to discuss further, let me know how best to communicate.
    Thanks, Chris.

  21. Looking for more info on the 15-16 Impreza ducts. Assuming the same for an 15 Sti. Info as in pricing? Some pics if possible, I know you mention it was the same as the gr chassis. Does come in a kit where hoses are included? Any kind of bumper adapter? The whole nine. Thanks, Johnson

    • Sorry Johnson, I don’t supply a full kit but there is really very little needed in the way of hard to find accessories.
      If I bought and resold them, they’d just get more expensive and increase your shipping costs too.

  22. Do you have any brake duct kits for 94-01 Integra Type R? If not, can you make one or have universal parts to make a kit?

    Thanks

  23. hi randy ,
    I am looking for a set of the “chin” ducts for a 2004/05 sti , the smaller ones under the fog light covers .

    price and avail ?

    how do I pay ?

    thnx ,mike

  24. Hi,

    I’m looking to purchase so wheel well brake ducting for my ’06 WRX STi. I’m not sure of the availability of ABS plastic / carbon fibre and what will be more suitable for my application. Is international shipping available. Please get back to me as I have photos of what I need. Thanks in advance.

    Warm regards,
    Jason

    • I have a set for the ’06 that gets the feed hose under the washer bottle on the Left side.
      I only make them in ABS now.
      As a rule, shipping costs around $55.
      I can estimate better with your address.
      Thank you!
      rz

  25. what is the advantage of having the cooling fan above the cooling duct to the brakes on nissan 350z? what time will this on sale?

  26. Any solution for 09 Mini Cooper R56 JCW brake duct for rotor area?
    Seems like bad idea to remove backing plate as hydraulic line is then exposed to more heat

    • Hi Paul,
      I couldn’t get to see a JCW on the lift but I did get to see a Mini and try my strut fan on it and twist the steering to lock.
      There’s space for the fan from what I could see.
      The fan fits right up to the spring perch and toward the front of the car.
      An 11 inch long nozzle gets the air back down to the spindle height.
      I didn’t have much time to play around, they work flat rate and I was feeling rushed to get out of there.
      I’d need a car for a couple days to see if a passive duct could be designed
      and I don’t know the brand well enough to know which cars are similar to measure from.
      Write me at randyzimmer@verizon.net
      rz

  27. I would be glad to assist with specifications, clearances etcetera for a good effective setup. Please email me to set up a conversation.

    • Hi Mark,
      Thanks for your interest.
      I don’t know anyone with one of these cars so I could take a look at one.
      I’ll check at the dealer to see if they have any on the rack to look at.

      I’ll do some research but maybe you can help me with some info.
      Do you think there’s room for a duct or is it too packed to run a hose at all?
      I see Millen doesn’t have a kit so I suspect there’s no room up there.
      But if there is, are there many changes to the frame/body between these cars?

      The new fan ducts are very compact and other than the effort of wiring,
      need very little space and upset to the car.
      If the fan is the better way to go,
      do you know how many of the cars and years use the same front knuckle/upright?

      What is the most popular website for the Z’s that are run on track?

      Thanks again for reaching out!
      I’m sure to have more questions.

      rz

  28. Is it possible to use the “ABS RooDucts for all Subaru Imprezas, Legacy and Forester from 2002 to 2007” with my 2008 BLE Spec.b??

  29. Any desire/ability to produce a set of ducts for 1st Generation Miata? To attach to the OEM “R-Package” chin spoiler?

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