Sinister Diesel Reviews 4,098

TrustScore 4.5 out of 5

4.6

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Review summary

Created with AI, based on recent reviews

Looking at 78 reviews, reviewers overwhelmingly had a great experience with this company. Customers consistently praise the high quality and craftsmanship of the products, noting their durability and impressive performance improvements. Many people highlight the ease of installation and the noticeable positive impact on their vehicles. The delivery service is frequently described as fast and efficient, with items arriving well-packaged and in perfect condition. The overall user experience, from finding products to purchasing, is often cited as smooth and straightforward. However, some customers experienced issues with their orders, particularly concerning backordered items and delayed shipping. A few people mentioned receiving incorrect or damaged parts, or having to modify products to fit. There were also occasional complaints about communication regarding order status and tracking information.

What people talk about most

Product

Reviewers mention positive feedback about product quality and performance. Customers are happy with the... See more

Quality

Users describe positive interactions with quality. Many customers praise the impressive craftsmanship and... See more

Delivery service

Reviewers highlight positive aspects of delivery service, with many praising the quick shipping, secure... See more

Order

Clients share ambiguous opinions on order. Many reviewers praise the ease of ordering and fast delivery, with... See more

User experience

Customers consistently note positive experiences with user experience. Many reviewers highlight fast shipping... See more

Reviews shaping this summary

Rated 5 out of 5 stars

I purchased the SINISTER 7.3 Intake Elbow W/ Boots Kit. The only thing that I didn't like but I knew about before I ordered. Was that the kit doesn't come with the boots pictured. It comes with the up... See more

Rated 5 out of 5 stars

Always a fast and easy shopping experience. I've bought several Ford 6.0 trucks this year to fix up and use building each one with the bypass oil & coolant filter setups as well as the fuel regulated... See more

Company replied

Rated 5 out of 5 stars

Quick shipping no BS. I grabbed a "blemished" intake & saved some bucks. Honestly it didn't look bad whatsoever & I was glad I could save some money. I installed it with my kid on Christmas and holy... See more

Company replied

Rated 5 out of 5 stars

Always an easy process to find and purchase my desired products. Literally have everything made by sinister on my 6.0 and 6.7 Powerstroke diesels. Great quality on every product, with absolutely no is... See more

Company replied


Company details

  1. Auto Parts Store
  2. Car Accessories Store

Information provided by various external sources

Sinister Diesel is your one stop shop for Ford, Chevy, GMC, and Dodge diesel performance parts. Sinister Diesel is also the number one source for Diesel Racing Components, Exhaust Systems, Tuners, Ford Powerstroke, Dodge Cummins, and GM Duramax engine repair parts, upgraded EGR coolers, lighting, bumpers, grilles, and suspension components from our parent company Sinister MFG & Sinister Diesel®. We offer the biggest names in the industry to help you repair or modify your Powerstroke, Cummins, or Duramax diesel engine.


Contact info

4.6

Excellent

TrustScore 4.5 out of 5

4K reviews

5-star
4-star
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2-star
1-star

Replied to 66% of negative reviews

Typically replies within 48 hours

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Rated 3 out of 5 stars

I didn't like paying extra for 3 day…

I didn't like paying extra for 3 day shipping and it taking over a week to be delivered

November 17, 2025
Unprompted review
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Reply from Sinister Diesel

Hi Eric! I sent this on to our customer service dept to see what happened here, but we were unable to find an order with your name. Was it perhaps ordered under a different name?

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Rated 5 out of 5 stars

Shipping

The tracking on where the part was in the whole process was great.

September 26, 2025
Unprompted review
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Reply from Sinister Diesel

Thank you for taking the time to share your feedback. We pride ourselves on delivering a 5-star customer experience, and we’re glad to hear that the order tracking process worked well for you.

We appreciate your review and are always here if you need anything in the future.

Rated 5 out of 5 stars

Good product easy install

Good product easy install

October 9, 2025
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

Thank you for taking a moment to leave a review. We’re committed to a 5-star experience at Sinister Diesel, and we’re glad to hear the product and installation met your expectations.

We appreciate your support and are here if you ever need anything.

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Rated 5 out of 5 stars

Carter Review

Over all look of the intake, ease of installation and quality of product!

October 4, 2025
Unprompted review
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Reply from Sinister Diesel

Thank you for taking the time to leave a review. We pride ourselves on delivering a 5-star customer experience, and it’s great to hear that the look, quality, and ease of installation of your intake stood out.

We appreciate your support and are always here if you need anything else.

Rated 5 out of 5 stars

Always great products from Sinister…

Always great products from Sinister Diesel!!

October 2, 2025
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

Thank you for the kind words and for taking the time to leave a review. At Sinister Diesel, we work hard to deliver a consistent 5-star experience, and it means a lot to hear that our products continue to meet your expectations.

We appreciate your loyalty and are always here if you need anything.

Rated 5 out of 5 stars

above and beyond

This company went above and beyond to ensure that the auto part arrived. Excellent customer service—they even dealt with the UPS snags.

September 10, 2025
Unprompted review
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Reply from Sinister Diesel

Thank you for taking the time to share your experience. At Sinister Diesel, we’re committed to delivering a true 5-star customer experience, and we’re glad to hear our team was able to step in and make sure your order arrived—UPS challenges and all.

We appreciate your trust and your feedback. If you ever need anything in the future, we’re always here to help.

Rated 3 out of 5 stars

Muffler delete pipe is too long

Exhaust pipe is too long. Is not a direct replacement. Have to cut 3” off existing exhaust in order to fit. Good quality material.

September 1, 2025
Unprompted review
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Reply from Sinister Diesel

Thanks for your feedback! We’re glad to hear you’re happy with the quality of the material. Because some of our exhaust parts are designed as universal fit, the length can vary slightly and may require trimming during installation. Fitment can also differ depending on model year and configuration. If you’d like, our team can help double-check fitment for your specific truck and walk you through the install. Please feel free to reach out through our Help Center so we can make sure everything is dialed in for you.

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Rated 3 out of 5 stars

love the product but takes way to long to come

love the product but i just ordered a side charge pipe kit for my 6.0 and its been over a month since i even received an email about it i have no idea where its at and still waiting on a shipping email

July 25, 2025
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

Hey Gauge - we apologize on the delay. We had one piece of the kit on back-order and unfortunately that delayed out your order. We do send a back-order email and it is usually followed up with a phone call. We will use your feedback to better our system. It does show that your order went out on 7/25 and should have been delivered. Please reach out to us directly with any issues. Thank you for your business.

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