COBB Tuning has released an update that completely eliminates the rev-hang issues that the Honda Civic Si exhibits. Rev-hang presents itself during gearshift events. When the clutch is depressed and the throttle is closed, drivers can see that the engine rpm stays constant for a period of time, not dropping even though the driver has completely lifted off the throttle pedal. This is how Honda tuned the 2006-2009 Civic Si and is considered normal behavior from the factory.

This AccessPORT update completely eliminates this rev-hang phenomenon. Engine RPM drops immediately when the clutch is depressed and throttle is closed. The vehicle responds much more like it has a cable controlled throttle plate.

If you are running a customized map, you can convert your map to eliminate rev-hang using the Honda Map Conversion Tool. Instructions and conversion tool download links can be found on the Honda Map Conversion Tool Page. Follow the instructions listed on the page.

Other AccessPORT development efforts are progressing well. We are continuing to work hard to bring the best tuning solution available for Honda tuning enthusiasts.

COBB Tuning has announced the 3.5inch Stainless Steel Y-Pipe for the Nissan GT-R. The stock y-pipe with factory catalytic converters is a fairly restrictive element in the GT-R’s exhaust system. The COBB 3.5inch SS Y-Pipe offers two options that reduce this restriction and allow the GT-R to make more power with less effort; one with catalytic converters and one without.

The catted version of the COBB 3.5inch SS Y-Pipe uses custom-spun high-flow metal substrate catalytic converters that improve flow while protecting the environment by reducing emissions. The off-road racing y-pipe deletes the catalytic converters entirely, further improving flow and allowing even more power.

Both the catted and catless versions of the COBB 3.5inch SS Y-Pipe are fully constructed of 304 stainless steel and TIG welded. The stainless steel flex sections are internally-lined for added lifespan and smoother exhaust flow. Dual 3inch downpipes feed into a 3.5inch main pipe. Designed as a direct factory replacement part.

The following dyno chart compares a stock untuned Nissan GT-R, a stock Nissan GT-R with an AccessPORT Stage 1 tune, and a Nissan GT-R with the catless Y-Pipe and AccessPORT tune. At peak power, 28 HP and 46 ft/lb is gained with the catless y-pipe over Stage 1. Gains of up to 50HP can be found in the midrange.

COBB 3.5inch SS Y-Pipe Features:
• Large gains in HP & TQ
• 304 stainless throughout
• TIG welded
• Direct replacement for OEM
• Custom spun metal subtrate cats or catless options
• Similar power gains between catted and catless options with stock turbos

Option: Without Cats
Part Number: 5C1211
Retail: $795

Option: With Cats
Part Number: 5C1212
Retail: $1,095

COBB Tuning announces the immediate availability of the COBB Knob, the hottest shift knob available for 8th gen Honda Civic Si. The COBB Knob is a fusion of the highest quality materials that, when properly mated, produce a shift knob that feels as good as it looks. Shifting a Honda has never been this exciting!

The COBB Knob is designed to keep those extended shifting sessions exhilarating. The red anodized billet aluminum base is internally threaded to provide a tight fit onto the shifter shaft that won’t come loose in the most frenzied of gear changes. The matt black delrin knob has a perfectly round contour to fit right in the palm of your hand. The package is complete with a COBB logo boldly engraved into the base to let everyone know whose knob you hold. The shifter weighs in at 122g, encouraging smooth thrusts into every gear.

Spin on a COBB Knob and take your Honda for a ride!

COBB Tuning is proud to announce a significant expansion of the COBB AccessPORT Map Database for the USDM Mitsubishi EVO X. Efforts for this expansion have been underway for some time and everyone at COBB Tuning is excited to see these maps made available for tuning enthusiasts. EVO X owners now have over 120 maps to choose from to meet the needs of their specific modifications!

The first major expansion is the availability of maps designed for use with Deatschwerks 800cc fuel injectors. Every previous Stage2 map is now also available with appropriate calibrations for DW800cc injectors across multiple pump fuel grades. That’s 36 additional maps for DW800cc injectors alone. These maps make great starting points for tuning big power with large turbo upgrades.

Since the addition of DW800cc injectors opened the door to higher fuel flow, COBB Tuning went ahead and created new E85 maps for every previous Stage2 map as well. 12 additional DW800cc + E85 maps are now available for download. The combination the DW800cc gasoline maps and E85 maps allows for easy transition between fuel types just by switching maps with the AccessPORT. Take advantage of the additional power available from E85 when it’s readily available, and switch back to a safe fossil fuel map when it’s not. Please note that the stock fuel pump is not adequate to deliver the required volume for E85 fuel.

Furthermore, all maps have been upreved to take advantage of the Torque Monitor Defeat feature in the new software. The ECU logic that checks to see if torque and airflow are within targets has been defeated on all maps. This will prevent DTC’s and limp modes from occurring when measured values are outside of table targets.

All 120+ maps are currently available for download in the COBB AccessPORT Map Database for the EVO X.

COBB Tuning is dedicated to providing the most comprehensive solutions for tuning enthusiasts. The COBB AccessPORT is the most powerful and easy to use hand held tuner in the world. Plug in and access the potential of your high performance import today!

COBB Tuning announces the availability of the XLE Blow Off Valve (BOV) for turbo equipped Subarus and the MAZDASPEED3. The COBB XLE BOV can be configured to operate in multiple modes using simple hand tools. Innovative engineering and precision manufacturing result in a compact package capable of holding high levels of boost consistently and reliably.

The COBB XLE BOV can operate in one of three modes with simple adjustments. Full recirculation is achieved by plumbing the primary output back into the intake pre-turbo with the auxiliary port closed. Full atmosphere is possible by opening both the primary port and auxiliary port to atmosphere. A hybrid mode is also possible by pluming the primary port into the intake and leaving the auxiliary port open to atmosphere, causing much of the air to recirculate to retain driveability, while still creating an audible exhaust of some of the boost pressure.

Spring preload determines the pressure differential across the BOV piston required before the BOV opens and releases the pressurized intake charge. The COBB XLE BOV can be adjusted by loosening the locknut and turning the hex-head shaft clockwise for more preload or counter-clockwise for less preload. Once preload is set, the locknut is retightened and ensures the adjustment is secure.

Materials used to construct the COBB XLE BOV ensure ease of maintenance and long service life. The mounting flange, body, vent cover and piston are constructed of 6061 T6 aluminum, the spring seat is made from 303 stainless steel and the primary outlet is polished cast aluminum. O rings are used around the piston and on the mounting flange to ensure optimal sealing. The valve body is hard anodized for strength and corrosion resistance. The piston is dry filmed lubricated, providing enduring maintenance free service.

COBB Tuning is offering the XLE BOV for the following applications:

The COBB XLE BOV is a limited edition piece and will not be available for long.