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UPCOMING PRICE INCREASE

SEPTEMBER 1 2025
DETAILS HERE

NISSAN FRONTIER
BIG BRAKE KITS

available in 12.8-13.1" (Off Road) and 14-15" (street sport) rotor diameters
Off Road Kit STREET SPORT KIT

LATEST
YOUTUBE
FEATURE

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AVAILABLE NOW!!

NISSAN TRUCK DROP KITS

Available for 2nd Gen Frontier 2005-2021, 3rd Gen Frontier 2022-, and 3rd Gen Pathfinder 2005-2012 (R51)!
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NEW PRODUCT ALERT!

HEMI TO CD009
TRANSMISSION ADAPTER

VQ35DE 350Z and G35 6-Speed Manual Transmission
CLICK HERE

LOJ Conversions

Get the parts you need and the support you deserve

Looking for the parts to make your ride’s tune-up seamless? LOJ Conversions produces automotive engine swap kits, components, and transmission adapters of premium quality at affordable prices for many popular vehicles. All of our products are designed and produced in the USA and engineered to the highest ISO quality standards.

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Make monthly payments with no hidden fees.

Buy Now, pay over time

Flexible financing options now available when you make your purchase from LOJ Conversions!

FEATURE VIDEO

LOJ CRAZY X

Get all the details on the world first and only Pro-Touring Nissan Xterra!!

WATCH HERE

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An Introduction

LOJ Conversions

A look into the product development philosophy of LOJ Conversions

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Testimonials

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...Best customer service of any company I’ve ever dealt with, and the highest quality swap parts available. If you want an easy, bolt in swap, this is it.

David S.

I built my LS powered 240SX using LOJ's swap kit. Stephen makes an excellent product and backs it up with excellent customer service... I will definitely come back to LOJ if I decide to do the swap in my 300ZX.

Kyle A.

Incredible customer support... The designs they made are incredible and the care for how good a job is done is definetly one of their strong suits... [LOJ] has been a life saver by helping me finish this swap.

Austin W.

...I've been a Z fan since I was a kid, also a Nissan tech but that swap in a Z I love it, these guys get six thumbs up from me. And I only have two, I think

Jada A.

Top shelf engineering. When only the best for your vehicle is the goal then LOJ is the solution. They build products the right way.Thanks Guys!

Rich A.

I bought my swap kit for my G35 coupe . I have been very happy with the quality the fit and the customer service...

Bradley T.

Great customer service and fantastic parts!

Jeffrey P.

Flawless product and exceptional customer service.

Heath B.

Absolutely amazing customer service! Within 10 minutes I had a reply for my question after 10pm!

Gary K.
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