Modquad Air Flow System [obs]

Modquad Air Flow System [obs]
Modquad Air Flow System [obs]

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Description See Also: 24 Reviews 4 Questions
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24 Reviews
4.4 out of 5 stars
5 Star   15 4 Star   8 3 Star   1 2 Star   0 1 Star   1
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All Reviews
Top 1000 Contributor
Big Bear, CA
Can't beat the K&N

A little harder to install than I thought, but still not bad. Have to completely remove the stock air box and drill out the 4 rivets holding the stock filter inner assembly together... big whoop. Power gain is definitely worth it. Ran with stock exhaust pipe and can still feel a slight difference. Very convenient to get the bracket, filter, and outerwear all in one package.

Nice intake system

Great intake system for my raptor 700. Fit perfect and the size of the filter was big. Just the right size to get the lid back on the intake box.. Air intake is much better

Four Corners area, NM
Nice System

My husband bought and installed this on my Honda TRX 700xx. It was easy to install, and dramatically improved the performance on my ride. The throttle lag, which was minimal at the lower RPMs, was completely eliminated and the torque was increased significantly. If you are looking into purchasing an air flow system, I highly recommend this one!

Maryville , TN
Alsome Deal

Took about 35 mins to put on easy to install with the right equipment would recomend could tell a boost in power alsome product.

Des Moines, Ia
Very nice bolt on

Very easy to install. Well worth the money. Gained a nicer torque curve out of it. 2003 banshee.

Modquad Air Flow System [obs]
Hendersonville, NC
Poor discription

Item does not say that u may have to jet your carb until you read the directions that come with it . . .I would of thought that this would of been clearly stated on the item details. Also, I wish it would of went more in depth about how much you have to modify your stock air box For these reasons, I only gave this item a 3 star rating

bellevue OH
Great kit

just bught this kit for my 08 YFZ450, the install wast that bad at all, removed the air box and made the swap, the only down side, if you wanna even call it that, is that now i need to jet my carb, already had a GYTR slip on and after the intake ive lost alot of my bottom end throttle response, it back fires and spits flames while deccelerating, other than that the difference in power and torque is easy to see

Dont waste your money

For the amount of work it requires to put this on, just leave your filter lid off. For the airbox to come off you need to pull the muffler on a LTR. I have a yoshi full system one peice setup and its a PITA to pull off for a air filter install. I will be returning this filter kit.

mesa az.
Good results after hard install

product works great but to install on my 2008 honda trx450 you must modify your airbox by trimming and cutting the back of the box. The filter is to long and hits the mount tab for the stock filter. K&N should make the filter shorter by just half inch. Quad runs great after though. should rejett carb after install.

Top 500 Contributor

Installed on my KFX 400. Took about an hour. Had to pull seat and remove airbox completely to drill the bolt holes. Make sure to get a good seal with the O-ring. Comes with an Outerwear. Inexpensive way to boost your quads performance.

Modquad Air Flow System [obs]
Top 250 Contributor

This took about 40 min to install, on the raptor 700. It works great, and a noticeable gain in power. Make sure you have a fuel programmer, PCIII or such. I run the fuel maps for the pro design kits, and it seems to work just fine.

San Jose, CA
Nice product

Just installed it on my '05 yfz450 and its a nice product. I like that its clean compared to the traditional oily foam filter and not to mention the added power you get from more air flow.

Top 500 Contributor
Pottsville, PA

this air filter takes out the bachfire screen so you go from a 3 intch hole to a 5 intch hole

Modquad Air Flow System [obs]
Washington Boro, Pa
Sweet air flow system

Hey, this is Jebba again. I was deeply impressed with this product. It performed for my needs. I saw that it gained 7 horsepower on the dyno and 1000 rpm's. Love Jebba

Anchorage, AK
Great Intake

Very easy to install and made a noticable change in power.

Top 1000 Contributor
Easy to install

On a 07 raptor 350 it was very easy to install but I did have to grind down the top part of the air box to fit back on all together it took about 40 minutes

Hillsboro, OR

A must have kit it added some more power and its easy to install

Grants Pass, OR
Great product, but...

I found the provided (2) drilled and tapped holes in the adapter right over the molded corners of the stock Warrior air box, so the bolthead and nuts have no flat surface to secure to.
The fix was having to drill and tap an entirely new hole on one side. And on the other I had to drill out the threads, allowing the bolt to pass through the adapter freely in the opposite direction, then fabricating a uniquely shaped nut to fit in the molded corner of the air box. Along with some Loctite, that secured the other side.
Once this was done I had the K & N airflow and protection that is a must for any ATV.

Albuquerque, NM
Great product

Great product. Easy to install. Makes a big difference over the stock filter. Would highly recommend.

Cottage Grove, WI
Huge Power Increase. Great Throaty Sound

This kit is what any and all quads need. Max air flow for better performance. Great sound that stands out from the rest.

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4 Questions
Answered:   4
Not Yet:   0
Q: Do I?
Over 7 years ago
do i have to buy something like this when i get a hmf full exhaust system or can i leave a foam one in the air box and take off the lid?
Top 1000 Contributor Top 500 Contributor
Over 7 years ago Location: Indiana
A: You can use the foam filter. HOWEVER, i would highly recommend going to a K&N Filter to allow more air in. Remember, you are pushing more air out with a full system and essentially robbing your engine of power. You will need to get more air into the intake to offset. Also, you should consider rejetting your carb and adjusting your fuel mixture screw.

My Settings:

2005 KFX 400 - HMF Ballance Carbon Fiber Full - Mikuni 150 Jet - ModQuad K&N Filter - Fuel mixture screw 3.25 turns out - 5 holes drilled in airbox lid at 1" in diameter - Tag sprockets 13T front, 40T rear - Renthal Z Ring Chain

Can keep up with most semi stock 450's
Q: Will it work in my stock air box on LTR-450?
Over 8 years ago
MotoSport Staff
Over 8 years ago Location: Por+land
A: Yes this will work in your stock air box.
Q: Do i rejet after installing? what do i rejet to?
Over 9 years ago
MotoSport Staff
Over 9 years ago Location: Portland, OR
A: The best place for jetting is going to be your local shop. You will have to rejet though so after installing it contact a local shop and tell them what you have done and they will be able to give you some specs to where you jetting should be.
Q: Duel or single ported intake?
Over 9 years ago
is this a single or duel ported intake? i have a raptor 700 i want to get an intake for and this looks like the best one for it.
MotoSport Staff
Over 9 years ago Location: Portland, OR
A: This is a single ported intake system.
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