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Dorman 615-380 Plastic Intake Manifold

Curated from 95 real Reddit conversations

Refreshed on: April 9, 2025

Dorman 615-380 Plastic Intake Manifold

Brand: Dorman

Price: $167

Snoop Score:

5.7

Sentiment

3.6

Popularity

2.7

Technical

7.4

Buy on Amazon for $167 See All Intake Manifold Reviews

As an Amazon Associate, I earn from qualifying purchases.

Snoop's Take

The Dorman 615-380 Patented Plastic Intake Manifold is designed to replace faulty intake manifolds in select Buick and Chevrolet models, correcting common issues such as PCV valve failure to reduce excessive oil consumption. This product includes a complete installation kit with gaskets and O-rings, ensuring a straightforward installation process for users with basic tools. Consumer sentiment reflects mixed feelings, with some praising its affordability and ease of installation, as one user noted, "I've installed two Dorman units on two different panthers without any issues," while others raise concerns about potential power loss and quality, stating, "Dorman is junk, or Bullitt intake (expansive)." Overall, while the Dorman intake manifold offers an economical solution for budget-conscious buyers, potential issues regarding power loss and quality may deter those seeking high-performance replacements.

Not for you? Check out our other rated Intake Manifold

Everyone says doorman’s are terrible but, I can’t really spend $600+ on the ford made part right now.
Positive Feedback

overall = reduced peak power, but still not much difference when it comes to daily usage.
Negative Feedback

5.7

Dorman 615-380 Plastic Intake Manifold

Buy on Amazon for $167

Engine Upgrades

7 / 10

Routine Maintenance

7 / 10

Restoration Projects

7 / 10

Aftermarket Enhancements

7 / 10

See how this compares to all Intake Manifold

What it does well!

Key strengths users can’t stop talking about.

Affordable option for budget-conscious buyers

“Everyone says doorman’s are terrible but, I can’t really spend $600+ on the ford made part right now.”➕

“If you're on a budget honestly Dorman isn't a terrible way to go.”➕

Performance satisfactory for non-racing applications

“Dorman works.”➕

Easy installation with proper care

“I've installed two dorman units on two different panthers without any issues.”➕

Affordable compared to OEM options

“You can get them from Bezos World for like 200 bucks.”➕

“I bought mine from levitttown Ford 11 days ago for like 370 something.”➕

Satisfactory performance in non-racing applications

“Pay the 300,400,500,600$ whatever for a new OEM ford racing intake or try to attempt to get a used one, or simply get the dorman and deal with it.”➕

Dorman intake is considered reliable by mechanics

“My mechanic friend says the dorman part is just fine.”➕

“Can confirm. Former parts guy for Ford and Lincoln.”➕

Easy to replace with basic hand tools

“it takes about an hour or so to replace with basic hand tools.”➕

Where it needs some work!

Areas to watch—feedback on possible improvements.

Aftermarket brands generally rob power

“overall = reduced peak power, but still not much difference when it comes to daily usage.”➕

“just save the extra cash and buy the new Ford intake, build quality is leaps and bounds ahead of the aftermarket.”➕

Leaks and reduces power

“Wait, I knew the Dorman manifold leaked but it also kills power?”➕

Potential power loss associated with Dorman intake

“Someones gonna have to back to back dyno test it.”➕

“At $375 that would be highway robbery if it was a replicated Dorman.”➕

Limited options due to OEM part discontinuation

“Can you even get anything else at this point on short notice considering the OEM part was discontinued?”➕

“There really isn't any other option, hopefully someone will prove me wrong.”➕

Dorman is perceived as low quality

“Dorman is junk, or Bullitt intake(expansive)”➕

“You could tell the difference in power.”➕

Dorman intake may lead to backorder issues

“Theyre on backorder, and some people saying they aren't being made anymore.”➕

Dorman intake may crack easily

“Cracked my Dorman intake manifold 💀 I think the cold weather (it’s been around 0-10F here) probably contributed to the failure.”➕

Faulty check valve issue

“Yes, I fell victim to the faulty check valve like so many others.”➕

Power loss associated with Dorman intake

“The dorman loses 15 horsepower. Theres no way I would be okay with that.”➕

Dorman intake is perceived as low quality.

“Dorman Intake power loss and what to make up for it.”➕

“Dorman is garbage. Steer clear!”➕

Dorman intake can reduce power.

“If you are losing power because of the intake manifold there is no making up for it.”➕

“you're better off just installing the correct manifold.”➕

Concerns about quality and power loss

“The issue with Dorman is they kept using the NPI intake runners and adapted it to mount up with PI heads.”➕

“the ATP model is better than the doorman model.”➕

Issues with installation compatibility

“I was wondering if this is the case or not.”➕

Significant power loss compared to stock

“the dorman manifold can cause a power loss of up to 30 horsepower from the stock Ford manifold due to how much smaller the intake runners are.”➕

“Power robbing garbage.”➕

Perceived low quality of plastic intake

“Yeah, just buy a metal one, doesnt matter who you buy from, all plastics are trash.”➕

“I agree they are junk though.”➕

“They are.”➕

Dorman intake may lead to future failures

“Are you sure? I may be paranoid, as I said, but there’s a post even today of a guy who need to replace his intake.”➕

“Might I be looking to a future intake failure? 120k miles.”➕

Dorman gaskets may not fit as well as OEM

“The Ford OEM has deeper seats for the gaskets that the Dorman.”➕

Plastic intake manifold can warp or delaminate

“Possibly warped out of shape just enough to not seal anymore.”➕

Compare On All Talked About Dimensions

Product Name	Price	Score	See Details	Buy Now
EVERESTWAY Intake Manifold for Ford and Lincoln Vehicles	$130	8.8	Details	Buy
MITZONE Intake Manifold with Gasket	$59	8.7	Details	Buy
EVERESTWAY 615-380 Intake Manifold	$81	7.1	Details	Buy
AULINK Engine Intake Manifold Assembly with MAP Sensor	$78	7.0	Details	Buy
A-Premium Upper Intake Manifold for Ford and Lincoln Vehicles	$134	6.5	Details	Buy
A-Premium Engine Upper Intake Manifold	$74	6.1	Details	Buy
Edelbrock 2701 Performer Intake Manifold	$195	5.8	Details	Buy
Dorman 615-380 Plastic Intake Manifold	$167	5.7	Details	Buy
Dorman 615-523 Engine Intake Manifold	$219	5.6	Details	Buy
A-Premium Engine Upper Intake Manifold Assembly	$139	4.4	Details	Buy
A-Premium Intake Manifold for Hyundai and Kia Vehicles	$229	4.4	Details	Buy
Dorman 615-188 Engine Intake Manifold	$178	4.3	Details	Buy
A-Premium Intake Manifold for Volkswagen Jetta, Passat, Golf, Beetle	$135	4.1	Details	Buy
GELUOXI Upper Intake Manifold Replacement	$110	3.9	Details	Buy
Koomaha Engine Intake Manifold Replacement	$63	3.8	Details	Buy
A-Premium Engine Intake Manifold for Chevy, GMC & Buick	$96	3.5	Details	Buy
BUSIDN Intake Manifold Assembly for VW and Audi Models	$68	3.1	Details	Buy
Edelbrock 2104 Performer Intake Manifold	$329	2.9	Details	Buy
A-Premium Intake Manifold for Toyota Prius 2010-2015	$128	2.6	Details	Buy
TRQ Upper Engine Intake Manifold Assembly	$74	2.6	Details	Buy
FORRIE Upper Intake Manifold for Audi VW 2.0L Gas Engines	$90	2.1	Details	Buy
EVERESTWAY 4884495AK Intake Manifold	$125	1.8	Details	Buy
Dorman 615-175 Engine Intake Manifold	$191	1.5	Details	Buy

Core Power Plays

The specs and strengths that make it shine.

Discussion about Dorman manifold design

“I designed this dash warning sticker to replace the factory one. 🤣”➕

Temperature affects intake performance

“I think you're right on the temperature being a big part of the problem.”➕

Discussion about the visual appearance of the intake manifold

“I really hate the look of the stock one it looks ugly as hell.”➕

“Idk I think it looks pretty cool when wrapped or painted.”➕

“You can paint it, hydrodip it, wrap it with reflective heat shielding, etc.”➕

“I think it looks rather nice.”➕

Discussion about Dorman's design similarities with other brands

“the Dorman aftermarket manifold lost about 20 HP, so we can probably expect similar numbers with the new Ford manifold as well.”➕

Buyer’s Cheat Sheet

What to check before you click ‘Add to Cart.’

Tips for installation process

“Dorman manifold gasket leak. Bought summit racing one to replace.”➕

“Alright alright jokes aside, it's a pretty easy job.”➕

“I'd personally recommend an electric drill with a stiff plastic scrubber brush attachment to clean the surface between the head and the new manifold.”➕

“Then we saw it and stared at it for a minute and decided 'It worked without it'.”➕

Discussion on comparisons to Ford OEM intake

“not exactly impressed.”➕

“Fingers crossed this isn't a turd.”➕

Clarification on gasket requirements

“The Dorman one doesn’t, it has o rings. This might actually be a new manifold and not a rebrand.”➕

Discussion on aftermarket options and value retention

“It's been both a great thing to have as a backup and a decent investment as it's now worth 3x what I paid.”➕

Discussion about the availability of OEM parts

“Good luck finding one new, and I 110% wouldn't mess with a used unit.”➕

“is absolutely possible just gonna cost ya upwards of 265$-325$ when you do find it 😂😂😂”➕

Different aftermarket options are being discussed

“The best route, I went trickflow myself, but not everyone has $800+ to drop on an intake manifold.”➕

“Very much good intakes to run as a basic reliability upgrade, even if you have no plans for future mods.”➕

Discussion on alternatives to Dorman and OEM intake

“Don't be looking for used intakes at a junkyard. How much is your time worth?”➕

“You might be lucky enough to find a used one.”➕

Discussion on compensating for power loss with gear changes.

“the benefit of a 4.10 to these cars would "hide" the loss of HP.”➕

“Gear change would more than make up for it.....plus use a ton more fuel.”➕

Advice on preserving lifespan of plastic parts

“I mean shit, I use hand lotion to moisturize my hands, is there a similar product for plastic automotive parts that gives them a longer lifespan?”➕

“Just drive it until it breaks.”➕

“Other than that there’s not much you can do, it’s inevitable.”➕

“Probably a coolant change.”➕

Cautionary Callouts

Know the pitfalls before they catch you off guard.

Comments on aftermarket brands and alternatives

“I’ve been looking around and I’m curious if anyone knows if there’s a difference in performance with the autotecnica/1aauto intake manifold?”➕

“You won’t find an aftermarket brand that doesn’t rob power.”➕

“They all cause power loss, just grab the new Ford Performance intake.”➕

Discussion of previous intake failures

“Missing check valve, probably.”➕

Discussion about alternatives to Dorman

“only one ive seen new is the edelbrock now.”➕

“The Victor Jr. is a nice intake.”➕

Concerns about the longevity of older Ford models

“think of it as a better you have it and not need than to need it and not have it.”➕

Discussion on the design flaws of Ford's intake manifold

“if they had kept doing it they would have gone out of business!”➕

Desire for a metal intake manifold instead of plastic

“the stock plastic is just the ugliest thing ive ever seen and every time I pop the hood it irks my soul.”➕

“I wouldn’t buy that unless the flow numbers were significantly better under the curve.”➕

“I just want one that provides the most power.”➕

Discussion on fixing vacuum leaks in plastic manifolds

“do I have to pay 700 dollars for a piece of plastic to make the California smog gods happy or is there a way to fix this?”➕

“FlexSeal^TM is the obvious fix. /s”➕

“Sure enough engine reacted.”➕

“Use some starting fluid to find the leak.”➕