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Magic 20 whp intake spacers

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Old 12-03-2017, 07:58 PM
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Magic 20 whp intake spacers



0 block in initial airflow


Afe filter actually blocks initial airflow more


Oem filter
Ok everyone for a while I've read, researched and got a lot of good info from this site but today I feel it's my turn to contribute. After getting accustomed to the power my lightly moded (v6 ec, row, afe) 13 p31 was putting down, I wanted to venture out and try out a couple of relatively inexpensive mods. What came to mind were ap underdrive pulley and then I saw the UPD " Air Induction Kit". When I saw it, I was like WTF is this. Red 1/3 inch spacers that will provide 20 whp, GTFOH. So for ****s and giggles decided to look for reviews on these threads. Mixed reviews, or should I say opinions because those who installed them loved them and the usual suspects were skeptical. So I contacted shardul over thanksgiving week and ended up picking up upd aik and upd under drive pulley at some great prices. I told him I wanted to either confirm what the reviewers said or double down on what the skeptics said. And he accepted the challenge. Got them 1 week later and installed 3 days ago. Upon starting it up, it was immediately apparent the engine is getting more air. Light throttle taps that usually got up to 2400 rpm where now at 4500. Put in reverse, car moved faster on idle reverse. Then came the fun part. Got on gas and car started to jump and skip. Broke traction every time 1-2 gear at wot. The added power and torque was undeniably there. Better throttle response and felt like forced induction on a much, much, much, much, much smaller scale. Think non performance cars with turbos (ecoboost ect). Only this is instant, with no lag. Car is a hell of a lot more responsive and fun to drive. Dyno are on the way, but there are already 2 or 3 available with back to back before and after results. This kit changes the way the air flows through the bottom box and up the filter. There IS a blockage and pics bellow will show. The purpose of this was to show my results, not he say she say. I have no doubt this car picked up those stated hp numbers. The jump in "felt" performance was almost as noticeble as going from p31+rows+afe to that plus v6 tune. There will always be skeptics, my wife said, "you paid how much for 2 red metal things, green filters and screws? You got scammed." Until she rode with me the next day, "what the hell, did those little red things give it this much power, the car is jumping". Answer was a short and simple Yes! I still can't believe it myself. So in my personal opinion, this the best mod available for the m156 post tune. Thanks for your time.
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Old 12-03-2017, 08:26 PM
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Bull****.
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Old 12-03-2017, 08:27 PM
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Uh huh, sure it is
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Old 12-03-2017, 08:29 PM
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Originally Posted by Ambystom01 View Post
Bull****.
I thought the same. Then I tried them.
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Old 12-03-2017, 08:31 PM
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I have no doubt that light weight underdrive pulley is helping response time and freeing up some good hp. I’m looking forward to the pulley myself. Lighter smaller. Has always been a easy way to free up powers. Great write up brotha
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Old 12-03-2017, 08:36 PM
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Originally Posted by SactownP31 View Post
I thought the same. Then I tried them.
And I'm calling bull**** on the claimed HP gains.
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Old 12-03-2017, 09:01 PM
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Originally Posted by Cifdig View Post
I have no doubt that light weight underdrive pulley is helping response time and freeing up some good hp. Iím looking forward to the pulley myself. Lighter smaller. Has always been a easy way to free up powers. Great write up brotha
Best part is pulley isn't even on yet. Have had one on my clk550 for years and has been great. This is just with those godam spacers. Pulley will be on in a couple of weeks. Exited about that too. Will probably get the other pulley kit and so it at the same time as the under drive one.
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Old 12-03-2017, 09:22 PM
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Maybe cleaning/dusting off your engine gave you back 20hp. Wipe that sh*t down once in a while lol.
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Old 12-03-2017, 09:53 PM
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It might change your throttle response ever so slightly based on there being more area under the filter, but seriously, there is no HP difference, the airbox is under vacuum, the engine is sucking air through a straw (the intake tube).

Take a straw and make the end by your mouth larger by say 2x for the inch right before your mouth and then suck air through it and tell me it makes a difference for more than a millisecond when you first start, if you can find more than a 2hp difference, I will eat my words.
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Old 12-03-2017, 10:03 PM
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You noticed a difference in reverse come on this is such bull.
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Old 12-04-2017, 12:51 AM
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Originally Posted by AMGonFire View Post
You noticed a difference in reverse come on this is such bull.
On idle reverse yes. It's weird. Think of it like when you exit a car wash and the car catches air from the blower and you have to keep your foot on the brake. Sensitivity on throttle response is up. I personally can't understand it either but it's up. It's just 1/2 inch spacers but it made a difference. Unless the green filters are significantly better than the afe pro dry s.
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Old 12-04-2017, 01:03 AM
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Originally Posted by roadkillrob View Post
It might change your throttle response ever so slightly based on there being more area under the filter, but seriously, there is no HP difference, the airbox is under vacuum, the engine is sucking air through a straw (the intake tube).

Take a straw and make the end by your mouth larger by say 2x for the inch right before your mouth and then suck air through it and tell me it makes a difference for more than a millisecond when you first start, if you can find more than a 2hp difference, I will eat my words.
I think the straw reference is kind of misleading. But I see what you're trying to say. As far as gained hp. It's there. A previous (epic) thread with dyno results turned into a circus. Independents dyno runs turned in gains ranging from 15-25whp. And people couldn't accept it. They came up with conspiracy theories.
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Old 12-04-2017, 01:10 AM
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Originally Posted by INS1GNIA View Post
Maybe cleaning/dusting off your engine gave you back 20hp. Wipe that sh*t down once in a while lol.
I've driven the car like 3k miles or less since I bought the car. Installed the filters and row airboxes about 1700 miles ago. Filters look brand new and will probably put them up for sale.
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Old 12-04-2017, 01:15 AM
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You’re imagining things
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Old 12-04-2017, 01:20 AM
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Originally Posted by SactownP31 View Post
I think the straw reference is kind of misleading. But I see what you're trying to say. As far as gained hp. It's there. A previous (epic) thread with dyno results turned into a circus. Independents dyno runs turned in gains ranging from 15-25whp. And people couldn't accept it. They came up with conspiracy theories.
Bull****.

You did not gain 1/2 the power a tune offers with some ****ing intake box spacers.
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Old 12-04-2017, 01:25 AM
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Originally Posted by BLKROKT View Post
Youíre imagining things
I may be. But then again I may not. Look man I knew I was going to catch **** starting this thread. Because I was one of the skeptics. I talked **** to shardul in the pms about this product. Got a great deal on them. Installed them, the gains are noticeable. Really did change car for the better. I honestly felt I had report back my experience with spacers, knowing what would (is) happen. Simple as that.
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Old 12-04-2017, 01:32 AM
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Originally Posted by Ambystom01 View Post
Bull****.

You did not gain 1/2 the power a tune offers with some ****ing intake box spacers.
You are aware PP don't gain a lot from tunes right? Whether its p31, BS, or 507. It's not like a tune with standard c63 with that ugly light gray intake manifold color. Theres threads on that subject, I ain't making that up. Most PP cars gain 20-30whp with can tune.
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Old 12-04-2017, 03:26 AM
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Originally Posted by Ambystom01 View Post
Bull****.

You did not gain 1/2 the power a tune offers with some ****ing intake box spacers.
you mad bro?

nvm mazda is mad

OP iím glad you like the spacers. shardul is a stand up guy. iím mostly curious to see what the pulley does. forget what some will say, they do make the car feel better and i KNOW they do.

Last edited by Infiniti; 12-04-2017 at 05:23 AM.
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Old 12-04-2017, 05:00 AM
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They don't give you 20hp and if they did you could not feel it. This was debunked months ago. The only thing an intake spacer does is rob you of IQ points and money from your wallet. Maybe it was the weight from the money being gone from your velcro wallet that made the car feel faster. Let's put it this way. In all my years on the race track, no team ever used an intake spacer to gain power. In fact no one ever used one, and in racing where every HP counts, teams tried everything.
I have seen some made up bull**** posts, but yours takes the cake. A spacer is not freeing up air and not allowing more air into the engine. Air isn't an issue. You're not "injecting" air into the manifold with a fricken spacer. All of the c63's on a tune I have ever been in can break traction in 1st and 2nd gears. That's not new. You can't get a feeling of injected air like a turbo without a turbo or some kind of forced air. Your car is not "jumping" where before it wasn't without a spacer. And if this spacer is so awesome, why are you selling? Can't handle all that new found power? How stupid do you think we are? You must have a giant ***** due to all those ***** pill ads you see online and believe.
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Old 12-04-2017, 05:02 AM
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Originally Posted by SactownP31 View Post
I may be. But then again I may not. Look man I knew I was going to catch **** starting this thread. Because I was one of the skeptics. I talked **** to shardul in the pms about this product. Got a great deal on them. Installed them, the gains are noticeable. Really did change car for the better. I honestly felt I had report back my experience with spacers, knowing what would (is) happen. Simple as that.
You mean the guy who sold them to you told you about all this power right? Go figure. It gave you no power. None. Zero. Zilch.
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Old 12-04-2017, 05:07 AM
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Believe it.
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Old 12-04-2017, 08:34 AM
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....I agree that there IS an obstruction with the filter hanging in the way causing a hard 90į edge but that does not affect the volume of air ingested, merely the PATH that airflow takes, so turbulence would be the benefit gained. However, the turbulence is BEFORE the filter, meaning the filter itself smoothes the airflow out before passing the most critical components in our intakes, the MAFs. They are CRITICALLY sensitive to any change in airflow. I modded only the horns inside my boxes years ago(actually deleted altogether) which SHOULD have drastically improved flow as at that point the throat was wide open. Nope, the engine HATED it. As a matter of fact I made a pull at BIP after this mod and we noticed a big drop across the entire rpm range...Jason asked what I had done and when I told him he basically laughed, called me a fool and said "put that **** back in there!" Well they were in the trunk, put them back in, made another pull and BOOM, numbers came back up. If there WERE any gains to be had by this, and theoretically that MAY be possible, I would say almost without question you'd have to retune in order for the ecu NOT to freak the **** out.
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Old 12-04-2017, 09:10 AM
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Originally Posted by Mazspeed View Post
They don't give you 20hp and if they did you could not feel it. This was debunked months ago. The only thing an intake spacer does is rob you of IQ points and money from your wallet. Maybe it was the weight from the money being gone from your velcro wallet that made the car feel faster. Let's put it this way. In all my years on the race track, no team ever used an intake spacer to gain power. In fact no one ever used one, and in racing where every HP counts, teams tried everything.
I have seen some made up bull**** posts, but yours takes the cake. A spacer is not freeing up air and not allowing more air into the engine. Air isn't an issue. You're not "injecting" air into the manifold with a fricken spacer. All of the c63's on a tune I have ever been in can break traction in 1st and 2nd gears. That's not new. You can't get a feeling of injected air like a turbo without a turbo or some kind of forced air. Your car is not "jumping" where before it wasn't without a spacer. And if this spacer is so awesome, why are you selling? Can't handle all that new found power? How stupid do you think we are? You must have a giant ***** due to all those ***** pill ads you see online and believe.
WTF is wrong with a velcro wallet?
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Old 12-04-2017, 10:15 AM
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I made my own for free using the old rubber from the old air filters.

It won't give you 20hp,maybe 2hp at 7000 rpms and at 120mph but every little thing helps.

You got taken hard if you think this gave you any power and it's amazing how true a sugar pull works if you believe it.

Heck I did full headers and basically everything you can do to our cars and it probably made 40whp but I could barely feel it as I was already at 450+whp. I even sometimes thought I lost power but I picked up 4mph in the 1/4 mile and you sound like you made more power and feeling than we doin going full bolt ons lol.

I can't wait to hear what you say when you tune it lol

Do us a favor.go log it and post before and after maf readings to see if you are in fact getting more flow up top.i think I have maxed out our setup before going to the sls intake(I have made a offer on one)and curious to see how much flow you are at.

I'm at 366 gs/sec now but that is with 400 cell ceramic cats.im putting in 200cell metallic cats that flow over 500 cfm and will see if my bottleneck is my cats I put in.

If anyone wants some cats I have 2 sets for sale.300 cell metallic and 400 cell ceramic.

My goal is 370gs/second

Edit...you will definitely feel a difference changing the stock filters and especially if they are old and dirty going to a dry filter and that might be what your feeling right now.

I know I felt the pedal a little more snappy and crisp going to row boxes and pro dry filters!

Last edited by skratch77; 12-04-2017 at 10:24 AM.
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Old 12-04-2017, 10:43 AM
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Ok this is turning into the old thread. Look I don't really care if you guys (skeptics) believe or not. Deep down I knew most wouldnt. **** it. But here's what I have issue with. All the skeptics believe in charcoal deletes, and believe in bigger outlet of row airbox. Yet removing a bigger obstruction in airflow is stupid? Also experience vs assumption. I've actually tried them, felt the difference and changed my mind. You guys talking **** are just assuming as you 0 experience with this product. Talking out your asses plain a simple. I don't know of 1 person who's actually used this a gave a bad review. Think about that.
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