Welcome to the official GReddy USA blog. -Think of this as our online weekly "GReddy Times," a venue for us to report what's going on or what just happened at GReddy USA this week (new products, new projects, racing news, even online store specials.) On our blog you can see what we are up to in the GReddy Sales floor, R&D garage, on the road or even from our Headquarters in Japan.

Tuesday, October 8, 2019

GReddy Profec Boost Controller, Now Available in 3 OLED Colors

Exclusive Overseas Red, White Edition and the Classic Blue 

Classic Blue OLED - p/n 15500214
White Edition OLED - p/n 15500219
Exclusive Overseas Red OLED - p/n 15500217 (not available in Japan)

The GReddy PRofec is compact, powerful and easy to use electronic boost contorller for standard pneumatic actuator or external wastegates. The large OLED Display, with the simple two-button / rotary-dial control, make for intuitive operation. An ultra slim controller can display in digital, bar-graph, or graphical modes and can be rotated 180 degree for installation with the included adjustable mount or flush mounted. By separating the display and control unit in the driver’s compartment, from the engine compartment-mounted, waterproof, sensor unit, it makes installation straightforward. Only one thin harness is required to be routed through the firewall. The combination of the new 300kPa (43.5psi) integrated pressure sensor, the more compact solenoid valve and faster ECU processer, provide quicker response and the most stable boost curves yet. The PRofec also maintains popular features like, Lo, Hi, Scramble boost presets, last-boost display, peak-hold recall, warning alert and safety limiter.


All three are compatible with the Profec MAP expansion module for even finer boost adjustments.
i.e.  (load vs. Duty% - by RPM, Throttle Position, Speed, Gear or Water Temp)

Monday, September 23, 2019

Back by Popular Demand, GReddy SUS Weighted Shift Knobs

304 Stainless Steel Shift Knobs with Adapters to fit most all Japanese manual transmission shifters - M10xP1.25, M12xP1.5, &M12xP1.25

Optimized for ergonomic comfort and weighted for driving feel GReddy 304 stainless steel shift knobs, are designed precise gear changes. The Sphere shaped ball design measures 45mm in diameter, 55mm tall, with a 13mm tall, 25mm dia. base. The material, size and shape allows this compact shift knob to weigh a lofty 363g (.80lbs.) This benefits the driving feel by counter-weighting the shift lever.

Polished Stainless Finish

MSRP $ 60. p/n # 14500110


Anodized Blue Finish

MSRP $ 60. p/n # 14500111

Adapters: Yellow M10xP1.25, Teal M12xP1.5, Navy M12xP1.25

Each GReddy CNC Stainless Shift Knob includes 3 of the most common thread sizes inserts to suit most Japanese manual transmission shifters. They are color coded in the GReddy corporate colors: Yellow, Teal and Blue.
Compatible with 5 and 6 speeds with various gate patterns.

Monday, September 16, 2019

California SB 112 removes cars from the full impact of AB 1824 Exhaust Noise Law - UPDATE!

California Bill To Amend 2018 Exhaust Noise Law Passes Legislature
SEMA Praises Lawmakers for Championing Critical Legislation

Thanks to the efforts of Assembly Members Tim Grayson, Tasha Boerner-Horvath, Phil Ting, Phil Chen, Senator Holly Mitchell, and enthusiasts throughout California, state lawmakers have approved SEMA-supported legislation (SB 112) that restores “fix-it” tickets for cars suspected of violating the state’s exhaust noise limit. Once signed into law by California Governor Gavin Newsom, SB 112 will take effect immediately.

SB 112, a budget implementation (trailer) bill, includes text drawn from SEMA-sponsored AB 390, which was authored by Assembly Members Grayson and Jim Frazier in early 2019. Under normal legislative procedure, AB 390 would not have been implemented until January 2020.

“SEMA thanks Assembly Members Grayson, Boerner-Horvath, Ting, and Chen, and Senator Mitchell for their tireless work on behalf of the over 1,700 member companies based in the Golden State,” said Daniel Ingber, SEMA’s Vice President for Legal and Government Affairs. “Thanks to their efforts, enthusiasts in California will continue to be afforded due process under the law.”

SB 112 removes cars from the impact of AB 1824, which was signed into law by then-Governor Jerry Brown in June of 2018. AB 1824 amended how California law enforcement officials issued citations for suspected exhaust noise violations by removing the ability to issue fix-it tickets, which allowed for 30-days to correct a violation. Instead, motorists received an immediate fine. The bill generated significant concern within the specialty automotive aftermarket industry and enthusiast community. Once signed into law by Gov. Newsom, SB 112 will again allow law enforcement to issue fix-it tickets.

Since 2003, exhaust systems installed on motor vehicles in California with a manufacturer’s gross vehicle weight rating of less than 6,000 pounds, other than motorcycles, may not exceed a sound level of 95-decibels when tested under a Society of Automotive Engineers (SAE). SB 112 does not change this.

Sema Action Network
Also see: (here)

Friday, September 13, 2019

Free GReddy GIF Stickers to add to your Social Media stories

To use our  free GReddy GIFs on Instagram stories just:
  1. Open up Instagram
  2. At the top left of the page, click on the Camara Icon to start a new story
  3. Select your photo or video from your phone's library
  4. Then click on the square smiley face page icon at the top of the page
  5. Click the GIF Icon
  6. Type G R E D D Y in the search tab
  7. Then select your from the available GReddy GIFs
  8. Place and size your new GReddy GIF on your story
  9. (Type @greddyperformance to tag us, so won't miss your post!)
  10. Finally click the Your Stories Icon at the bottom left to post!
You can also visit our list of FREE stickers (Here) to cut and past onto other social media and mobile messages... 

Thursday, August 29, 2019

Special Limited Edition GReddy X Vtec Club USA Collaboration Launch

* Starting Saturday, August 31st 2019 on www.ShopGreddy.com
UPDATE: Steering Wheels Sold Out!

Limited Edition
GReddy X Vtec Club USA
"For Competition Use Only" logo
T-Shirts (S-2XL)

Limited Edition
GReddy X Vtec Club USA
"For Competition Use Only" logo
Serialized Suede Steering Wheel
Limited to 50pcs.

GReddy Performance Products offices will be closed on Monday, Sept. 2nd for the Labor Day Holiday. Normal business Hours will resume Tuesday, Sept. 3rd...

Friday, August 23, 2019

GReddy Radiator Caps Superceeded Part Numbers 
       High Pressure 1.3K and Closed Type S and Type N

Old part numbers for the GReddy Radiator Caps have now be superseded by these new Cap numbers below.

The new caps include an extra badge and are offered in 3 cap finishes: Black, Polished, and Brushed.  

  Type S - most Nissan, Subaru, Mazda, Some Toyota, Mitsubishi (late model, 10th Gen Honda)
  Type N - most Honda, some Toy (Scion FR-S/ Subaru BRZ)

p/n 13901000   Type S  1.3K Radiator Cap
Superseded to:
p/n 13911002   1.3K Type S  Black    
p/n 13911004   1.3K Type S  Polished
p/n 13911006   1.3K Type S  Brushed 
fits most Nis, Sub, Maz, some Toy, Mit 

p/n 13901001   Type N  1.3K Radiator Cap
Superseded to:
p/n 13911001   1.3K Type N  Black    
p/n 13911003   1.3K Type N  Polished
p/n 13911005   1.3K Type N  Brushed 
fits most Hon, many Toy & Scion 
Old (Closed) No Relief Radiator Caps will also be superseded by these new numbers below.  
p/n 12400907   Type S Closed Radiator Cap
Superseded to:
p/n 13911008   1.3K Type S  Black    
p/n 13911010   1.3K Type S  Polished
p/n 13911012   1.3K Type S  Brushed 
fits most Nis, Sub, Maz, some Toy, Mit 

p/n 12400906   Type N Closed Radiator Cap
Superseded to:

p/n 13911007   1.3K Type N  Black    
p/n 13911009   1.3K Type N  Polished
p/n 13911011   1.3K Type N  Brushed 
fits most Hon, many Toy & Scion 

Friday, August 2, 2019

GPP 10th Generation Turbo Civic Intercooler Upgrade Kits

Greddy Performance Products Upgraded Intercooler Kits for the FK8, FC1, FC3, FK7 Civic

The Greddy Performance Products Intercooler Upgrades for the 10thGen. Civics (FK8 Civic Type-R, FC1/FC3 Civic Si, and FK7 Civic Sport Hatchback) include upgraded replacement aluminum hard-piping and feature our world renown “tube and fin” intercooler cores with our carefully matched “inner-fin” structure for an ideal balance of high cooling with low pressure drop (not cheaper extruded inner tubes). This effective design is not only light-weight and efficient for cooling down air intake temperatures of turbo boost, but it’s external aerodynamic tube and fin profile helps keep vital cooling systems like the radiator feed with cool ambient air-flow, when in motion or with just the stock fan. This contributes to an overall more effective cooling solution for the a turbocharged Civic in many types of applications (road course, autocross, drag, etc...)

To keep engine power up and consistent, lap after lap, it is important to address the stock intercooler. The latest generation of Honda factory turbocharged engines make great power when cool, but use a compact OEM intercooler, which tends to easily retain heat. This “heat soak” along with the ECU’s sensitive safety protocols reduces engine power by compensating with lower boost levels and retarded timing.  During our “back to back to back” tests, the OEM factory intercooler saw loss in power of up to: -25hp/20ft/lbs for the K20 (CTR) and -20hp/12ft/lbs for the L15 (Sport/Si). While our larger more heat-soak-resistant, GPP intercooler kits, maintained consistent gains over stock of through the lower-mid to high RPM range, even after more than 3 consecutive dyno runs.

1.5L Civic Sport                     2.0L Civic Type-R

GPP offers two sizes of intercooler cores for each application to choose from: a medium sized core and a larger core. Both kits will offer more consistent cooling for stock turbo and moderate boost up applications, however for high boost levels with more intense tuning, or large turbo upgrades, the larger core option will often be the ideal choice. However, when lower-end boost response is a priority the medium size selection is preferred.  GPP Intercooler kits offer efficient, light-weight performance gains, with an easy bolt-on installation.

Civic (FK8) Type-R Intercooler Kit
(Med) Type-28 p/n 12058101  /  (Lg) Type-24 p/n 12058103


-- ---  --

Civic (FC1/FC3/FK7) Si / Sport Intercooler Kit 
(Med) Type-31 p/n 12058100  /  (Lg) Type-28 p/n 12058102

Monday, July 22, 2019

GPP Civic Type R Front Over-pipe option and Forward Mid-pipe upgrade

Get the most out of your 3" GReddy Civic Type-R Exhaust!

New Product(s) for the FK8 Civic Type-R. Maximize your 3" Civic Type-R cat-back exhaust!
Sold as a set or individually... is our GPP high-quality stainless steel Civic Type-R 3” Front Over-pipe Option (compatible with OEM or most aftermarket downpipes) and full 3” (non-tapered) Forward Mid-pipe Upgrade (to replace standard GReddy exhaust forward midpipe, that was designed to bolt-on to the factory overpipe).

Perfect upgrade to maximize your 3” GReddy Supreme SP and HG Supreme SP 3-tip exhaust 
 * (also great for many other popular aftermarket FK8 exhausts)

+ Full 3” High-flow.   +Cat-back.   + Emissions Friendly.

Maximize the flow of our your 3" (FK8) Civic Type R cat-back exhaust with the simple installation of our optional 3" (76mm) Front Overpipe with flex pipe. This full 3" (76mm), emissions-friendly, cat-back, stainless-steel, front over-pipe for (FK8) Civic Type R, installs with common sized, high quality laser cut 3-bolt flanges, in between the factory down-pipe (or aftermarket equivalent) and GReddy Supreme SP ( & HG) exhaust with Full 3" Forward Mid-pipe p/n 10558601 (or many popular aftermarket 3" exhaust systems)

+ Full 3” High-flow.   +Cat-back.   + Emissions Friendly.  
+ Compatible with OEM or Aftermarket Downpipes
+ Compatible with many common 3"exhaust brands


GPP CIVIC TYPE-R Full 3' FORWARD MID-PIPE   p/n 10558601
To further improve the the flow and performance of your GReddy (FK8) cat-back exhaust for the Civic Type R, we have released this optional full 3" (non-tapered) forward midpipe, that will replace the orginal Supreme SP (& HG) forward midpipe. The slight taper in the standard Supreme SP forward midpipe (is designed to mate upto the factory overpipe flange and) more than adequate for use with the Civic Type R factory catalytic conveter and factory front overpipe, but when upgrading these units, you may aslo want to maximize the flow with a full 3" (76mm) stainless steel forward midpipe upgrade. Specially designed flanges and gaskets allow for a perfect match to our emissions friendly (cat-back) 3' Front Overpipe (p/n 10558600sold separately).

+ Full 3” High-flow.   +Cat-back.   + Emissions Friendly.  
+ Upgrades standard GReddy Supreme SP,  HG Supreme SP, DD-R exhaust
forward mid-pipe to full 3" (non-tapered)

Maximize the flow of our your 3" (FK8) Civic Type R cat-back exhaust with the simple installation of our optional 3" (76mm) Front Overpipe and full 3" upgrade for the Supreme SP (& HG) Forward Midpipe. These two upgrades will allow you to take full advanate of flow of your 3" Supreme SP exhaust. It includes p/n 10558600 - FK8 Front Over Pipe and p/n 10558601 - FK8 Forward Midpipe upgrade for a GReddy Supreme SP ( & HG) exhaust for the FK8 Honda Civic Type R.

For more see our Greddy.com 10th Gen Civic page

Thursday, July 11, 2019

For an Ultra Custom GReddy Exhaust without specialized welding, we offer the Universal RS-Ti Muffler Sets


For that ultra-custom GReddy Exhaust, upgrade your exhaust system with a full Titanium Universal RS-Ti Muffler Set with pre-welded flange and muffler band.

Easily build a hybrid (stainless) steel exhaust system with our Full Titanium RS-Ti. Just use the provided stainless steel flange and muffler-band to customize your existing piping and bolt onto our Universal RS-Ti. No need for specialized exotic Titanium welding or slip-joints necessary.

Available in 3”(76mm) p/n 11008525 and
2.5” (63.5mm) p/n 11008530 piping sizes.


Easily replace the muffler section of your exhaust with a customizable GReddy Performance Products RS-Ti full Titanium Universal Muffler Set.

The muffler section has a pre-welded Titanium flange, that you use to connect to your existing system, by using the included stainless steel Greddy flange and muffler band.  

Just standard (stainless) steel welding and fabrication required.

Finish off your custom hybrid - (Stainless) Steel / Titanium exhaust with different optional GReddy RS Tips and Silencers.
(sold separately - see: here)

Friday, June 21, 2019

At the 2019 Formula Drift Half Way Point - FD Profile: Life of Ken Gushi Video

Ken Gushi and the Toyota Racing - Achilles Tire -  GReddy Performance 86 Team fight back in a strong FDNJ round 4 performance to the Top 8 quarter finals.   1 month before the second half of the season resumes at July 19-20 at FDSEA at Evergreen Speedway, WA.

In this Life Of episode, we hang for the whole weekend at Road Atlanta with Ken Gushi. Gushi gives us some insights into his team, his responsibilities as a pro driver and we also get to go along with Ken in competition.


Round 1 FDLB - April 5th-6th Streets of Long Beach, CA

Round 2 FDFL - April 26th-27th Orlando Speed World, FL

Round 3 FDATL - May 10th-llth Road Atlanta, GA

Round 4 FDNJ - June 7th-8th Wall Speedway, NJ

Photos: Larry Chen Photos

Round 4 FDSEA - July 19th-20th Evergreen Speedway, WA - coming soon...

Ken Gushi Motorsports
Toyota Racing
GReddy Performance Products