Borla, a byword for performance exhaust systems, has developed a suite of goodies for the 2016 to 2017 Chevrolet Camaro in 2.0-liter turbo and V6 flavors. Both exhaust systems have been designed ...

Tecumseh Racing's Jerry Romanick makes adjustments to their small-block MoPar test mule, while Thrush's Peter Roberts digs through the mounds of mufflers gathered for these evaluations. Traditionally, ...

If you happen to be the proud owner of a Chevy Sonic and are also looking to augment your zippy subcompact with a palpable performance upgrade, then GM’s Turbo Stage Kit with High Flow Exhaust should ...

Even though Steve Dinan isn’t calling the shots at Dinan Cars anymore, the company is still probably one of the best for tuning Bimmers in the US. Their research and development budget is big enough ...

We've been quite happy with the power output of our Alpha's 5.3L V-8. This 300hp, 320-lb-ft engine has proven itself to be very well matched to the 4,854-pound H3. From daily commuting to towing ...

Trick Flow designed the Twisted Wedge head with a 13-degree intake-valve angle along with the standard 23-degree exhaust-valve angle. Despite the intake-valve angle change, the head is a 100-percent ...

This is a preview. Log in through your library . Abstract With the recent acceptance of the Bag Mini-Diluter (BMD) for low-level exhaust emissions measurement, there is an increased interest in ...