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Description
AMS PERFORMANCE SUBARU WRX / STI EJ INTAKE MANIFOLDStay Ahead Of Your Competition With The AMS Subaru WRX STI Intake Manifold! The AMS Subaru Intake Manifold was designed to outperform the competition. We referenced many modern design examples and engineering studies to bring you the best intake manifold available for the Subaru EJ20 and EJ25 WRX & STI. After extensive testing we ended up with a manifold that makes more power than anything else currently available on the market! Benefits 4. 5 Liter
Stay Ahead Of Your Competition With The AMS Subaru WRX / STI Intake Manifold!
The AMS Subaru Intake Manifold was designed to outperform the competition. We referenced many modern design examples and engineering studies to bring you the best intake manifold available for the Subaru EJ20 and EJ25 WRX & STI. After extensive testing we ended up with a manifold that makes more power than anything else currently available on the market!
Benefits
- 4.5 Liter Plenum Volume
- 13” Equal Length Intake Runners (Measured from Face of Bellhorn to End of Runner)
- 2.5” (63.5mm) Intake Runner Diameter (ID of Bellhorn)
- Bellhorn OD 3.8” (96.7mm)
- Increased Port Size at Cylinder Heads Allow Matching to Larger Hand Ported or CNC Ported Cylinder Heads
- Available in Standard or Reversed Configuration
- Throttle Body Opening Accepts Larger Throttle Bodies up to 2.625” (66.675mm) or 70mm with mild porting
- Available in 4 Configurations (Standard, Standard Coated, Reversed, and Reversed Coated
Product Notes
- Due to the large variety of rotated turbo kits on the market, we cannot guarantee fitment with every brand. Depending on the turbo location and sizing, interference with the cylinder 3 intake runner is possible.
- Some port matching may be required when used in conjunction with CNC or hand ported cylinder heads.
- The intake manifold is available with a standard or optional reverse throttle body orientation, allowing for more direct intercooler pipe routing.
- Larger throttle bodies can be used with proper modifications (Up to 70mm with minor porting) (Larger throttle bodies may also require adapter flanges)
- The intake manifold is flanged for 04+ STI drive by wire throttle bodies, but cable throttle bodies can be used with custom fitting and flange adapter.
- Standard configuration intercooler piping will need mild custom fabrication due to placement of throttle body.
- Reversed configuration requires the relocation of the alternator and removal of the A/C compressor. Installation is not a direct bolt on and will require custom intercooler piping.
- The intake manifold is designed to use a common Subaru aftermarket top feed injector size. (48mm overall length / 11mm inlet – standard Subaru rail size / 14mm outlet) We recommend the use of Injector Dynamics brand injectors.
- Standard Subaru style injectors cannot be used. (Side Feeds, Stock STI Style Injectors)
- Not compatible with side feed to top feed conversion rails
- Requires aftermarket rails and lines, will not fit with stock
- Not compatible with top mount intercoolers.
- Not directly compatible with mounting the factory upper coolant reservoir. Custom bracketry will need to be fabricated to mount.
- The bottom of the center plenum features four 1/8″ and one 1/4″ NPT ports for vacuum accessories.
- 2008+ STI may require mild clearancing of A/C compressor line
Engineered To Be The Best
For the Subaru EJ Intake Manifold the plan was simple, take our years of engineering experience and design the best intake manifold available. Designed, prototyped, and tested in house by our team of Engineers, the AMS Subaru EJ Intake Manifold was created to be the best unit available on the market. By casting this manifold it is not only stronger, but it allowed us to optimize the power output by giving us the freedom to sculpt the interior geometry for maximum efficiency and airflow.
By utilizing Solidworks© & CFD (computational fluid dynamics) software we started with an extremely large plenum size of 4.5L for the ultimate top-end power. We also designed CNC machined bellhorns which act as internal velocity stacks and allow for a broad power curve and high RPM horsepower capabilities. This allowed us to optimize massive 2.5″ tapered runners and matched cylinder port angles to minimize turbulence and maximize power output. The 13″ length of the runners allow for a smooth taper in cross section reduction, giving the AMS Subaru EJ Intake Manifold exceptional flow.
Unmatched power gains and excellent response
This AMS Subaru EJ Intake Manifold offers more than just top end power. This manifold gives you an amazingly wide power-band with a huge jump in power whenever you are in boost. This equates to greatly improved lap times on the road course and the confidence to leave any opponent in your dust when on the drag strip!
Be the guy to beat, order your AMS Subaru EJ WRX / STI Intake Manifold now!
Applications
- 02-05 Subaru WRX w/ EJ20 (Requires adapter to use WRX style drive by cable throttle body)
- 06-07 Subaru WRX w/ EJ25
- 08-14 Subaru WRX w/ EJ25 (Requires using STI style drive by wire throttle body)
- 04-Current Subaru STI w/ EJ25 (2008+ STI may require mild clearancing of A/C compressor line)
- Will fit various Legacy and Forester EJ25 applications with proper throttle body usage and custom fitting
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
My Dachshunds Love These
Size: Small
These balls are durable, flexible material, highly chewable without being easily destroyed. I stuff them with Milkbone Maro Snacks, which are just the right size to twist into the holes in the ball. My dogs literally get an hour+ chewing and chasing entertainment from these. They chew them, they sometimes 'pop' out of their mouths, go rolling across the floor, dogs chasing them. This satisfies their urge to hunt prey. Dachshunds can easily tear this kind of stuff-it-toy apart. These have lasted for a long time without tearing or shredding. I would NOT recommend them for a dog much larger than a tweenie weenie. They're a bit on the small side and might be swallowed by a larger dog. It would be cool it they also came in a larger size (and probably ball wall thickness also) for the bigger dogs to enjoy. These stuff-it chew balls are better than the kong balls my dogs had before these. Highly recommend them.
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Reviewed in the United States on April 19, 2024
★★★★★ 5
My puppy’s favorite fetch toy!
Size: Small
Update Aug 27, 2024: After 10 months, these are still his favorite ball. He’s obsessed with fetching and plays with them all day. They do bounce really high. Unfortunately, the small size aren’t available for sale anywhere anymore. I tried the medium size, and he has a bit of trouble hanging on to them, but he manages. Weirdly, he prefers the orange one, but he also plays with the blue one.
My 7 month old Shih Tzu puppy loves to fetch, and these are his new favorites. They’re small enough to fit in his mouth, and they are made of hard plastic, so he’s able to hold on to them. They have a lot of bounce, and this adds to the fun for him. I highly recommend them.
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Reviewed in the United States on December 17, 2023
★★★★★ 4
Genuinely bummed that these great balls can’t stand up against my Chloè.
Size: Medium
I love all the Chuckit brand of balls. I found that the Strabo and glow balls in the Chuckit line are the softest, and as such, don't last as long as the rest of Chuckit line of balls. Having said that, they do last longer than than every other brand I've tried (and I do believe I’ve tried every brand available on the market today.)
The strato balls do bounce higher than any of the other balls in the Chuckit line. They really are a good value.
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Reviewed in the United States on March 30, 2022
★★★★★ 5
Great dog balls at a great price
Size: Medium
The balls are a favorite for my dog. I could have done without the hole through the middle because I don't do treats in balls anyway. My dog loves balls for their own merit. I needed replacement balls for my Nerf Dog Ball launcher. It seems the originals have disappeared from the market. I took a chance because the price is right and this Chuck-it ball works very well so we're liking this ball a lot. So far my Dachsund, who can destroy a tennis ball (the kind they are selling as Nerf Dog replacements) in 3 minutes has not done any damage to this one so that's a win. I recommend this as a much better ball than the fuzzy tennis balls. I like the colors too since many dog toys are green (which gets lost in the lawn, etc.) or red (even though dogs have red/green color blindness. Blue and orange are good and pretty easy to find. I liked these well enough that this set was my second purchase so I will have spares in case the others are lost.
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Reviewed in the United States on May 21, 2023
★★★★★ 5
My Baby loves his new baby!
Size: Medium, Size: Medium
Finally! A ball my 107 lb. pitty/pointer mix can’t destroy. He has torn up every single “indestructible” toy in a day or so until now. He peels fabric and fur off non-rubber toys. He is a 4-legged shredder. I’ve added pictures of him for a size reference of my dog versus this product. I know I had wanted that when shopping for this item.
This ball is now his beloved “baby.” He goes absolutely insane looking for it, chewing it, chasing it, and even sleeping with it. He won’t rest unless he knows exactly where it is. It is his only toy, and he is good with that. After getting this home, I tried giving him other choices, but he won’t touch them.
I was worried that he would rip it apart by putting his teeth in the holes, but so far, not a scratch. It is soft enough to collapse just enough to keep it from cracking when his jaws crush it but not so soft that he can rip it to sheds. The holes are large enough to prevent a suction or vacuum effect on his tongue or mouth. For his size jaws, it is a perfect fit. Other dogs might have problems with suction or be able to get their teeth in those holes and rip it apart. Who knows?
The older version of the Chuckit squeaky ball was his favorite for the year and a half he had it, but the way they make them now, he peels off the orange triangle in hours flat, the squeaker falls out (choking hazard), and then he rips it apart.
I’m going to stock up on these. I can’t imagine how crazy he will be if they ever stop production or change the materials.
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Reviewed in the United States on May 9, 2019