Expectation can be a dangerous thing, especially with tuning. We admit we had high expectations for Project Mazdaspeed Protege, as we had it serviced at Mazda's Tech Center. The service included the ...

Bolt-On Boost is back in 2001. The first time around in the August 2000 issue we featured 18 kits and had dyno tests on 11. While that's a .611 batting average, we plan to bat a thousand in 2001. In ...

After working with owner-operators for the last 37 years, I’ve concluded there are at least nine items that struggling owner-ops usually are missing: Turbo boost gauge: Driving without a turbo boost ...

Way back in 2007, someone on a VW TDI forum came up with a new boost gauge project. At the time, it was a remarkable feat of engineering, capable of displaying the manifold pressure on a tiny OLED on ...