IPD Plenums 981 DFI GT4 / Boxster Spyder (3.8L) Competition Plenum Add GT3 Throttle Body?:Yes Gates Racing Timing Belt for

Gates Racing Timing Belt for 1990-2005 Mazda Miata MX5 1

consistent geometry

Fluorosilicone diaphragm

Specifically designed to handle high horsepower applications when using turbos and / or nitrous

Oil vapor blow-by can have a detrimental effect on your engine – reducing power output and even causing harmful detonation by altering your air/fuel ratio

IPD Plenums 981 DFI GT4 / Boxster Spyder (3.8L) Competition Plenum Add GT3 Throttle Body?:Yes Gates Racing Timing Belt forAfter a very extensive R & D program we are proud to launch the new 981 IPD 82mm Competition Plenums. We only offer "Competition" versions of the 981 Plenums which upgrades the factory 74mm throttle body with the larger 997 GT3 82mm throttle body. This combination has proven to be considerably more popular and deliver even more performance. This Competition version will work with both 3. 4L "S" and 2. 9L "Non S" applications. The 981 intake is nearly