Editor’s Note: 2012 was quite a year. Actually, for OnAllCylinders, it was our only year.

We’re putting the finishing touches on our first 12 months of delivering a unique combination of tech articles, tech projects, automotive features, photo galleries, event coverage, news, and lifestyle posts.

We’re looking forward to bringing you that same mix of all things high performance and racing in 2013. But first we’re looking back at our most-read posts of 2012, starting with our most-read tech articles and how-to articles.

1. Sound Advice: A Quick Guide to Selecting Mufflers

Chambered, turbo, and straight-through—this post covered the differences in muffler styles and included the advantages of each. Apparently, people are looking for upgrades that affect both the performance and sound of their vehicles, because this remains one of our more popular posts.

Viscosity chart from our intro to motor oil.

2. An Introduction to Motor Oil for Dirt Bikes, ATVs, and UTVs

We change motor oil every 3,000 miles (theoretically) in our daily drivers, yet many still don’t understand the different viscosities and weights. We took on the subject and applied it to dirt bikes, ATVs, and other powersports vehicles.

 3. Video: X-Pipes vs. H-Pipes

Few tech posts solicited comments and opinions like this X-pipes vs. H-pipes video. So which is better…an X-pipe or an H-pipe? See what the tech experts at Summit Racing have to say in this video and then let us know what you think.

4. Injector Math: How to Calculate Optimum Fuel Injector Size

Call us geeks, but we love applying math formulas to our vehicle modifications. In this post, we showed you how to calculate fuel injector size to meet your engine’s fuel demands. Grab a pocket protector and a compass, and check out this post.

5. Swap Feat: Upgrading a Ford 9-Inch Rear Axle with Larger Gears

People love to talk about adding power to their hot rods, but this step-by-step post touts the merits of simply making more out of your existing power. We show you how to put more of your engine’s power to the pavement by swapping in larger gears.