Yamaha R7 Airbox Derestriction - Lams to HO

In this video I show you how to remove the airbox and replace the stock LAMS airbox snorkels with the HO version snorkels. This helps dramatically to help increase airflow volume and decrease airflow turbulence into the throttle bodies.
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[@alonpery392]

Iam thinking about removing the snorkel for more air intake, but some people saying that the snorkel is there so the air that goes in is colder . My question is is it better to leave it in or take it out ?

[@DunBeBuilds]

@@alonpery392 thanks for reaching out! From the research I’ve conducted there are some tradeoffs. The longer snorkels give the air more time to settle, so when it passes through the throttle body, it’s not vortexing and is more stable getting better air to fuel mixing. On the other hand it’s slightly more restrictive. I couldn’t tell you what’s best for results. Probably also depends if your racing it or not.

[@benetagliarina8542]

Can you inserit link for buy a snork?

[@DunBeBuilds]

Sure. There is two left and a right. japan.webike.net/products/24682762.html japan.webike.net/products/24310975.html

[@mariushaukerudbrochmann8508]

Do you have to program it aswell?

[@DunBeBuilds]

Assuming your talking about ECU flashes and tunes. If you do everything I have yes its highly recommended. If you just do air filter and plate, not the airbox snorkels you dont have to do it. You will get about 5hp gain by doing just that, but with ecu flash you can get 30-40hp gain.

[@needtoknow3168]

@@DunBeBuildsLAMS config- 42hp / fully de-restricted-70hp = 28hp total, thats it, not 40hp gain. do ur numbers, use dyno, not fairy tales......

[@DunBeBuilds]

@@needtoknow3168 👍🏼 next time I’ll include decimals just so I’m 100% accurate and not telling fairy tales

[@macariosan2838]

Do you need the take the throttle body off in order to get the airbox out? I’m installing the Yoshimura airbox

[@DunBeBuilds]

Yes you do. There is no other way. Its relatively quick to do, maybe 15mins. just remember to unclip all plugs on the throttle body

[@clarkmclauchlan4217]

when replacing the snorkels did you find that they had already been modified/tampered with to be less restrictive? just wondering if it is absolutely necessary to buy new snorkels of if you can cut the stock ones to do the same job

[@DunBeBuilds]

So i had already purchased the HO snorkels. In hindsight I would have just cut the Lams ones (as it appeared previous owner had done) for the anniversary build and then just got the HO ones for the track bike where im chasing max performance. I think relatively the same result would have been achieved.

[@clarkmclauchlan4217]

awesome, thanks for clearing that up.

[@googlelimp9834]

Hi do you remember what part number them replacments they are please???

[@DunBeBuilds]

Hey mate, here is the links for the left and a right. japan.webike.net/products/24682762.html japan.webike.net/products/24310975.html let me know if you cant find. Yamahapartsonline.com is a good place for schematics of parts. just remember its Australian. not sure where your located.

[@googlelimp9834]

@@DunBeBuilds ive only see a few people do this your the only one who answered me so seriously thank you so so so much for your help very cool of you enough respect..

[@kingalmarzooqi7444]

Will it pass the road worthy test ? If I’m on my re and I have a yzf r7 ho . No one will notice right ?

[@DunBeBuilds]

Yes, it should pass the roadworthy as they don’t dive that deep. I haven’t gotten it yet tho. Your RE license doesn’t affect what you can register under your own name. You could have 1000 cc registered under your name even when you’re on your learners but obviously you’re not allowed to ride it. If you have a factory r7 HO the police will easily know as it’s attached to the number plate and will show as HO however, a modified LAMS bike will still come up as LAMS, even if it’s been modified. Does that help?

[@kingalmarzooqi7444]

@@DunBeBuildsthank yes it does