sinisterdiesel.com Reviews

About this Company

Sinister Diesel is your one stop shop for Ford F-250 & F-350, Chevy Silverado, GMC Sierra, and Dodge Ram diesel performance parts. Sinister Diesel is also the number one source for Diesel aftermarket components, exhaust systems and diesel tuners, for Ford Super Duty Powerstroke, Dodge Ram Cummins, GMC Sierra 2500HD/3500HD Duramax and Chevy Silverado 2500HD/3500HD 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.

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35 Product Ratings and Reviews

Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L

Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L

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4.7

Overall Star
Rating

5 Shopper Approved - Review Star
31
(89%)
4 Shopper Approved - Review Star
2
(6%)
3 Shopper Approved - Review Star
0
(0%)
2 Shopper Approved - Review Star
1
(3%)
1 Shopper Approved - Review Star
1
(3%)

About this Company

Sinister Diesel is your one stop shop for Ford F-250 & F-350, Chevy Silverado, GMC Sierra, and Dodge Ram diesel performance parts. Sinister Diesel is also the number one source for Diesel aftermarket components, exhaust systems and diesel tuners, for Ford Super Duty Powerstroke, Dodge Ram Cummins, GMC Sierra 2500HD/3500HD Duramax and Chevy Silverado 2500HD/3500HD 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.

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Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Jamie T - 03/19/2022

Great producr

Product fits perfectly and it also made my 6.0 run smoother, along with much better idle and Cold starts

Company Choice

I feel like sinister makes the best aftermarket parts for my 6.0, I’ve used a bunch of delete kits for various Diesel engines from sinister and have never had an issue

Jamie T

03/19/2022 - SC

Very easy to navigate website


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Johj - 01/17/2022

Installed really easy…. Havent ran truck to see if i have any improvements

Johj

01/17/2022

Goid


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

George B - 12/25/2021

Great Company

Great up Grade

Company Choice

AGoodSolidCompany

George B

12/25/2021

Excellent


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Dalton C - 10/29/2021

Looks great!

Company Choice

Best reviews and customer service.

Dalton C

10/29/2021 - SC

Super easy!


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Nathaniel J - 10/27/2021

I didn’t see any improvement but it is nice and shiny

Company Choice

Sinister has a great selection of parts and their website is very UX/UI focused.

Nathaniel J

10/27/2021

Great!


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

William - 10/11/2021

Great product and very satisfied

Company Choice

for the quality of the products

William

10/11/2021 - California

easy to shop and at a grea price and very satisfied with my purchase


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Erick - 09/18/2021

Sinister diesel

My first time buying from sinister diesel and their quality parts is great.

Company Choice

Too quality parts

Erick

09/18/2021

Best performance shop for my 6.0


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Josh 2 - 09/02/2021

Easy to install, brought my fuel pressure back up to where it should be, even with my tired, old pump.

Company Choice

Right part, good price and easy to navigate website

Josh 2

09/02/2021 - Idaho

Quick and easy


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Zakk S - 08/31/2021

Just what I needed.

Company Choice

Great reviews from people I know.

Zakk S

08/31/2021

Had exactly what I needed.


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Luke S - 08/24/2021

Worth it.

Got the blue spring kit and it was easy to install. Hopefully it will save my injectors in the future.

Company Choice

Wanted to try it out.

Luke S

08/24/2021 - WA

Super simple install and easy to follow instructions.


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

John - 08/22/2021

Blue spring kit

Good quality parts.

Company Choice

Purchased a thermostat housing for my 7.3 Powerstroke,it was an excellent quality housing.My old housing OEM was rusted,Ford wanted twice the cost for a new one compared to sinister billet housing.

John

08/22/2021 - Arizona

Easy to Order Items


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Keith F - 06/19/2021

This kit would not fit on my fuel regulator correctly.

Company Choice

Quality of products

Keith F

06/19/2021

Quick easy and great products


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

John M - 05/20/2021

Cost as much as a Ford blue spring kit but you get a sick laser etched chunk of billet aluminum to mount in an otherwise dull area of the motor. Looks sick, oh, and I almost forgot, 65PSI!! Not to shabby Sinister Diesel, not too shabby at all!

Company Choice

Return customer

John M

05/20/2021

Fast and easy


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Claude M - 05/07/2021

So far so good

Claude M

05/07/2021

Good


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Brandt P - 05/03/2021

Cheap and effective

The installation was easy, and the instructions book was very well done, blue block looks pretty good under the hood

Company Choice

Seen it several times around mainly on dodges

Brandt P

05/03/2021

Prices are a bit high but so is everything else, so far pretty good I plan on getting some more products forsure I’d this one works out good


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Dave R - 05/03/2021

High quality product for a fair price. Fit and finish was excellent.

Dave R

05/03/2021

Quick and easy


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Heath W - 03/14/2021

Highly recommended..

Easy to install. Great product.

Company Choice

Great products.

Heath W

03/14/2021 - NC

Ordered online. Free shipping and arrived as quoted. No issues. Will purchase more products.


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

David - 03/11/2021

Great Design!

The kit arrived on time, was complete and robust in design.

Company Choice

Innovators in diesel replacement parts.

David

03/11/2021 - CA

An easy check out experience.


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Tylour C - 03/04/2021

Easy to install love the feel and weight of the product solved my fuel problem with 4 simple bolts

Company Choice

Why would you not choose sinister diesel great deals solid products

Tylour C

03/04/2021 - CA

Was a great find and easy buy have heard nothing but good things about this company


Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
Shopper Approved - Verified Customer
Sinister Diesel Blue Spring Kit with Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L
See more product reviews

Darren M - 02/05/2021

A+

Very easy installation and looks great and noticable change

Company Choice

Best products on the market

Darren M

02/05/2021 - IL

Great products and everyone is helpful if you have questions


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