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IPD's 74mm Competition plenum for the 986 Boxster and Boxster S replaces the factory part and is designed to run with a larger genuine Porsche 74mm throttle body in place of the stock 68mm unit. IPD recommends the plenum and throttle body together for...

The 970 Panamera Turbo shares much of its 4.8L twin-turbo V8 intake with the Cayenne Turbo, including the air distributor that feeds the intake manifold. IPD's plenum replaces it with a revised diversion area and larger openings, so the air from both intercoolers meets...

The 991.2 Carrera, Carrera S and GTS were the first Carreras with the 9A2 3.0L twin-turbo engine, and the factory plastic air distributor sits right where the two intercooler outlets merge. IPD's 74mm plenum for this platform is a cast aluminum Y that smooths...

The 958 Cayenne Turbo's twin-turbo 4.8L V8 shares its basic intake layout with the Panamera Turbo, and IPD's plenum replaces the factory air distributor where the two intercooler streams meet. The accentuated diversion area and larger openings help the charge air merge more evenly,...

The first-generation 955 Cayenne Turbo earned its reputation with a twin-turbo 4.5L V8, and IPD's plenum builds on it by replacing the factory air distributor with a cast aluminum Y-shaped part. Larger openings and a reshaped diversion area reduce turbulence where the two intercooler...

The 997.1 Carrera and Carrera S came with a plastic T-shaped air distributor that IPD replaces with its patented cast aluminum Y plenum. Choose the 74mm plenum that uses your factory throttle body, or step up to the 82mm Competition plenum for a genuine...

IPD's 82mm Competition plenum for the 981 Cayman comes in three engine-specific versions: the 2.7L Cayman, the 3.4L Cayman S and GTS, and the 3.8L GT4. Each one replaces the factory plenum with IPD's cast aluminum Y design and is machined for a genuine...

The 991.2 Turbo and Turbo S already make serious power, but the factory air distributor between the intercoolers and throttle body is a T-shaped plastic part that forces two charge streams to collide head-on. IPD's cast aluminum 74mm plenum replaces it with a patented...

IPD offers two plenums for the 996 Turbo, Turbo S, X50 and GT2. The 68mm plenum works with the factory 68mm throttle body and suits stock and moderately modified cars. The 74mm Competition plenum is built for big-turbo builds and needs the larger genuine...

Early 996 Carreras with the 3.4L engine use a cable-operated throttle, so IPD machined a dedicated version of its plenum with the matching cable-throttle flange and an O-ring seal. It is a direct replacement for the factory distributor, and IPD reports up to 28...

For the e-throttle 996 Carrera, IPD makes engine-specific 74mm plenums for the 3.4L, the 3.6L and the X51 Powerkit car, plus an 82mm Competition plenum for owners adding a GT3 82mm throttle body. Each replaces the factory plastic distributor with IPD's dimpled cast aluminum...

For the 981 Boxster, Boxster S and GTS, IPD makes an 82mm Competition plenum in 2.7L and 3.4L versions. The cast aluminum Y body replaces the factory plenum and is machined for a genuine Porsche GT3 82mm throttle body, available as an add-on below,...

IPD's 74mm plenum for the 992.2 Turbo with the 3.6L engine applies the company's cast aluminum Y design to the newest 911 Turbo platform. It replaces the factory air distributor ahead of the throttle body so the charge air from both intercoolers merges cleanly.Features...

IPD's 74mm plenum for the 992.2 Carrera and Carrera S brings its cast aluminum Y design to the latest 3.0L twin-turbo cars. It replaces the factory air distributor so both intercooler outlets merge smoothly before the throttle.Features IPD's patented Y-shaped merge in place of...

IPD makes two plenums for the 957 Cayenne Turbo. The standard version suits the 2007-2010 Cayenne Turbo, and a dedicated version for the 2009 Cayenne Turbo S is machined to accept that car's larger factory 82mm throttle body. IPD rates the Turbo S plenum...

For the 3.7L 992.1 Turbo and Turbo S, IPD makes a 74mm plenum that replaces the factory air distributor with a cast aluminum Y merge. The two charge streams from the intercoolers meet with less turbulence ahead of the throttle body, helping the 992...

The 991.2 GT2 RS uses the same 74mm IPD plenum as the 991.2 Turbo, a cast aluminum Y merge that replaces the factory air distributor. Because the GT2 RS charge plumbing is unique, IPD makes GT2 RS-specific Y-pipes, available here as an optional add-on...

The 992.1 Carrera range, from the base car through the Carrera S, GTS and T, uses the 3.0L twin-turbo flat-six, and IPD's 74mm plenum replaces the factory air distributor where both intercooler streams merge. It is a cast aluminum part built around IPD's Y...

Direct injection changed how the 997.2 Carrera breathes, so IPD engineered a separate DFI plenum instead of carrying over the 997.1 part. It bolts on with the factory throttle body and hardware, and its smoother internal path builds power from the midrange to redline....

The 996 GT3 Mark II's Mezger 3.6L is already a race-bred engine, and IPD's 82mm Competition plenum lets it breathe through a larger genuine Porsche GT3 82mm throttle body. On a 2004 GT3 tested with the plenum and 82mm throttle body, IPD recorded 24...

IPD's DFI plenum for the 991.1 Carrera and Carrera S replaces the factory air distributor and keeps the factory throttle body and all existing hardware. Unlike IPD's earlier port-injection plenums, which made their biggest gains in the midrange, the DFI design follows the factory...

For the direct-injected 987.2 Cayman, Cayman S and Cayman R, IPD offers 74mm plenums that keep the factory throttle body and an 82mm Competition plenum for a GT3 82mm throttle body. The 74mm DFI versions bolt on with existing hardware, and IPD rates the...

IPD's DFI-era plenums for the 987.2 Boxster and Boxster S come in a 2.9L and a 3.4L version that reuse the factory throttle body, plus an 82mm Competition plenum for a GT3 82mm throttle body. Swapping out the factory plenum is a straightforward bolt-on...

The 987.1 Cayman and Cayman S use a factory plenum that IPD replaces with a cast aluminum Y design. Pick the 74mm plenum for the 2.7L or 3.4L, which keeps your factory 74mm throttle body, or the 82mm Competition plenum for 2007-2008 cars stepping...

The 987.1 Boxster changed engines mid-generation, so IPD makes four plenums for it: one for 2005-2006 2.7L and 3.2L cars, separate 2.7L and 3.4L versions for 2007-2008 that keep the factory 74mm throttle body, and an 82mm Competition plenum for 2007-2008 cars upgrading to...

On the 991.2 Turbo and Turbo S, the factory Y-pipe that feeds the throttle body is a multi-piece assembly of aluminum tubes, rubber couplers and a plastic junction. IPD replaced the whole thing with a single cast Y-pipe that has slightly larger, non-round runners...

Built for the 997.2 Turbo and Turbo S, this IPD Y-pipe is a ground-up redesign rather than a copy of the factory part. Larger inlets and an optimized diversion area let it flow more air into the throttle body, and IPD rates it at...

The factory 997.1 Turbo Y-pipe becomes a bottleneck once power goes up. IPD designed this cast aluminum Y-pipe from scratch for the 997.1 Turbo and GT2, with larger runners and a smoother merge. In IPD's sectioned comparison the runners measure 56.4mm against the factory...

IPD's high flow Y-pipe for the 991.1 Turbo and Turbo S replaces the factory multi-piece charge pipe junction with one cast aluminum piece. Its larger runners and reworked merge reduce the restriction between the intercoolers and the throttle body, and IPD rates it as...

The 997.1 Turbo's Mezger-based 3.6L responds strongly to better airflow after the intercoolers, and IPD offers two plenums for it. The 74mm version bolts to the factory 74mm throttle body for stock or lightly modified cars, while the 82mm Competition version is machined for...