Engine Tech | Part 1: World’s Quickest Air Cooled Bug 
590 WHP All-Carbon R34 
Quick Tech | Tomei USA Titanium RB26 Front Pipe 
1,401 WHP Porsche GT2 Test & Tune: 2019 Subaru WRX | 91-Octane vs E85
What’s your poison? Do you prefer wine or tequila? Both have their place. Wine will make you feel relaxed. DueRead More
DTE Systems | New Tuning Solution
There used to be a time when tuning consisted of using a screwdriver to change jets in the carburetor andRead More
Quick Tech | Halogen vs LED: Which One is Right for You?
If you don’t drive your car at night, stop reading this story. If you’re one of the millions that followRead More
Performance Tech | Compression Ratio 101 Part:1
Optimizing an engine’s compression ratio for the type of fuel and the boost levels (forced induction applications) that will beRead More
Performance Tech | CAN-Bus 101
If you are old enough to have used computers before the invention of the USB port, you probably really appreciateRead More
THERMOCURE | Cooling System Rust Remover
While the general public is pretty good about sticking to a regular schedule for oil and oil filter changes onRead More
Test & Tune: 2019 Subaru WRX | Part 1: Exhaust and Accessport
Let’s do it! In the previous issue of DSPORT, we introduced you to our latest D’GARAGE projects: a 2019 SubaruRead More
D’Garage Battle: 2019 Subaru WRX vs 2019 Honda Civic Si
Do you know who your enemy is? Sometimes he can be in your presence without you knowing. Often times, heRead More
LSPI: Low-Speed Pre-Ignition
For every action, there is going to be a reaction. Over the past few years, automakers have taken action toRead More
Project A+ | B-Series All-Motor Build | Optimizing the Original Performance VTEC
Nothing beats boost. A big enough turbo at high enough boost pressure delivers big power numbers regardless of how wellRead More
Rotary vs Piston
The Wankel Rotary engine: Mazda’s most prized offering is also the source of hundreds of hilarious internet memes. During aRead More
Test & Tune: 2011 Subaru WRX Part 2 | Downpipe, Intercooler, Equal Length Manifold
REGARDLESS OF WHETHER you’re talking about an athlete or a vehicle with a combustion engine, improving aspiration can make aRead More
Test & Tune: 2011 Subaru WRX Part 1 | Basic Bolt-ons for More Power
SUBARU’S GVB WRX could be one of the best values in the segment, when measuring performance versus value. It’s lessRead More
Variable Compression Engines | Are Boosted Variable Compression Engines the New Way to Go?
“For every action, there’s going to be a reaction. And if the repercussions of the reaction are worse than theRead More
Quick Tech: Limiting Belt Slip Can Add Big Power
When you consider that a belt-driven supercharger might need 80 or 100 horsepower to compress enough air to allow yourRead More