I seem to have seen articles on these in US hot-rod magazines, basically they enable you to adjust wastegate (or blow off valve) to regulate the level of boost; useful for competition purposes, I ...

Building a boost controller is a “slippery slope” sort of mod. Once you complete this you’re just going to want/need to modify something else in the system. A turbo-charger improves the performance of ...

There's more than one way to control boost on a turbocharged car. Some methods are more expensive than the turbo they're designed to control, others cost less than the burrito I had for lunch. There ...

In the last installment we left off installing and dyno testing Pypes hi-flow exhaust system on our buddy Tim Cairone's '87 Buick Grand National. We realized gains of 38 hp and 35 lb-ft by ditching ...