The result is that you don't get all the boost you could be getting

Preferred venting solution for serious street tuners and racers

Modular Combo (Sensor & Reference) Manifold

often times reaching 180 degrees or even 360 degrees without failure

that's 40PSI without even having to change your manifold

Clutch Kit - Xtreme Outback Heavy Duty Sprung Ceramic 580Nm 800KG (20% inc.) KNI25008-1B JR44 The result is that youXtreme Outback Heavy duty sprung ceramic kit 1B Recommended for: Motorsport Applications Xtreme Outback Ceramic upgrades have been designed to offer the ultimate in heat capacity for single plate upgrades and are designed specifically for motorsport applications such as endurance rally events and time trials. Available in Sprung Ceramic and Cushioned Ceramic, there are a wide variety of options to choose from depending on the vehicle use.