2017 Subaru WRX STI Exhaust Shootout

Exhaust systems serve as one of the most important upgrade decisions you’ll make for your car. This hardware determines in part how your car will look, sound and perform. It makes a statement on what type of enthusiast you are, as car owners look for different benefits and characteristics. But […]

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Bolt-On Basics | Performance Tuning 101

The Fundamentals of Automotive Performance Whether you’re just starting out or you’ve already modified your car, understanding the fundamentals of bolt-on performance is the first step to making power, increasing performance and getting the most from your setup. In this issue, we’ll cover everything from air intake systems to full-fledged […]

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Exhaust 101: Moving Up By Moving Out

Turbo exhaust manifolds, headers, downpipes and cat-back exhaust systems are all designed to increase performance by improving the exhaust flow out of the engine. On “all-motor” applications, the proper header and cat-back exhaust can reduce pumping loss, increase scavenging and improve cylinder filling to maximize volumetric efficiency, torque and power. […]

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Infiniti Now Offers its Sport Muffler Kit

VQ GROWL UNLIKE MANY OF THE EARLY G’S AND Z’S, INFINITI’S Q50 SPORTS SEDAN HARDLY makes a noise when accelerating. For those of us who enjoy the aural notes of a sports sedan, Infiniti now offers its Sport Muffler Kit, applicable to all versions of Q50 3.7 and Hybrid models. This axle-back […]

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Test & Tune: 2010 Hyundai Genesis Coupe 3.8

A normally-aspirated 6-cylinder engine making 300 horsepower deserves some praise. Until recently, 300-horsepower required a V8 or some form of forced-induction. Today, technology allows more horsepower-per-liter than ever before. Unfortunately, a well-tuned engine from the factory means that the aftermarket may struggle to find any additional horsepower. As the Hyundai […]

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Test & Tune: Mazdaspeed3 | FWD Renegade

The import performance movement has always featured an ever-changing marketplace. During the ‘80s, the predominant weapons of choice were Mazdas, Datsuns or Toyotas. These lightweight RWD platforms made for perfect pocket rockets. In the ‘90s, the FWD import movement was spurred by turbocharged Honda Civics and Acura Integras tearing up […]

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Mountune MP275 Power Package for Ford Focus ST

For most of us in the tuning market, warranty claims become a huge hassle when the dealer denies service based on modifications. Although some dealers are “mod-friendly”, service managers come and go and usually the hook-ups don’t last long. In the aftermarket world, tuning companies looking to offer a factory […]

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2011 Subaru Impreza STI GVB Part 2

The last time we checked in on our Subaru STI sedan Test & Tune project, we extracted an additional 34.5 WHP by simply changing engine oil, installing new spark plugs, fine-tuning the engine calibration and increasing peak boost pressure by only 1.5psi. This time around, we enlisted the services of […]

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2006 Honda Civic Si, Part 1

The eighth generation Honda Civic represents a legacy that dates back to the early 70’s. What started as an economy car evolved into the leader of the import tuning revolution of the early 90’s. Even though Subaru’s STI, Mitsubishi’s Evolution and Nissan’s Z have become exceptionally popular in the sport […]

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