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.

Wednesday, March 20, 2019

PRO Surge Tank Kit for 2J Swaps

Customize it to work with your 2JZ application!


GReddy 2JZ PRO Surge Tank Kit


(JZA80) 2JZ-GTE in custom applications
Designed specifically for custom applications with 2JZ engine transplants, the GReddy 2JZ Pro Surge Tank Kit offers the versatility to best match the throttle-body inlet angle and vacuum/air ports for your engine bay. This Pro kit includes 4.0l tank capacity with a large 90mm throttle-body, and top feed fuel rail, and necessary weld-on flanges. For additional rigidity during high boost applications, it uses thick 3mm formed metal tank that is welded to a precision machined, grooved base, with six individual, internal velocity-stacks. Also pre-welded are the tuned primary runners and CNC machined, intake manifold flange with fuel injector ports. Another key feature is the unique, purpose-built  fuel-resist, ring-type gaskets that seal the manifold to the head.

2JZ Pro Surge Tank Kit includes:

    Collector tank capacity 4.02 l (normal ratio 200%)
    Welding required to attach throttle body flange, throttle cable mount and air port flanges
    Surge tank, base plate and runners pre-welded
    Tuned internal velocity stacks on each runner
    Primary runner length 130㎜, OD 14.0mm ID 13.0mm
    Specially designed and manufactured O-ring style gasket provide superior manifold to head sealing for each runner
    Throttle-body hose diameter 100mm, internal butterfly diameter 90mm with low-profile throttle shaft
    Fuel Delivery tube for 14mm top feed injector (compatible with Nissan R35 VR38DETT factory injectors)
    Compatible with OEM factory Idler Control Valve and TPS Throttle Position Sensor


Wednesday, March 13, 2019

New Universal RS-Ti Muffler and Tip Sets

  No Titanium Welding Necessary!

With the included pre-welded Titanium 2-bolt flange and additional stainless-steel flange and stainless steel muffler canister mounting bracket, you do not have to be able to weld Titanium to have a custom Titanium muffler exhaust system. Just weld onto the provided stainless-steel flange and canister mounting bracket. 

GPP Universal RS-Ti Titanium Muffler and Tip sets create new lightweight options for creating your own custom full Ti or hybrid Ti/steel exhaust system. In addition to the Titanium RS Muffler canister and tip, each kit includes a stainless-steel muffler mounting-band (to weld on mounting hangers), pre-welded titanium inlet pipe and 2-bolt Ti flange, as well as a matching composite gasket and stainless-steel 2-bolt flange (to adapt the kit to steel piping.) The kits are available in a 3.0” (76mm) and 2.5” (63.5mm) piping sizes. Our signature high quality, straight-through, universal RS racing sport muffler design offers exceptional flow with a clean, yet aggressive exhaust note. And with the RS Tri-bolt removable Tip, optional RS inner tip silencers and tips can be purchased separately for even more customization.

For more details please see:
   p/n 11008525 - 2.5" / 63.5mm dia. RS-Ti Titanium Muffler Set 
   p/n 11008530 - 3.0" / 76.0mm dia. RS-Ti Titanium Muffler Set

Friday, March 1, 2019

Single Throttle Conversion for the RB26

GReddy RB26 Single Throttle Surge Tank Kit


GReddy Intake Plenums are designed to maximize performance in highly tuned engines.  The single throttle body surge tank conversion for the (R32 / R33 / R34) RB26 puts an emphasis on a balance of high power and mid-range torque.  The kit features a large 90mm throttle-body and a 4.1L surge tank, that is 121% larger then the OEM piece.  For extra rigidity during high boost applications, it uses thick 3mm formed metal tank that is welded to a precision machined, grooved base plate, with six individual, internal velocity-stacks.  Between each connection are carefully designed and manufactured sealing rings.  The CNC machined primary runners are sized for optimal efficiency. The kit comes anodized to provide a durable, scratch and rust resistant finish.

Testing on a high-powered 958hp/663ft-lb R32 GT-R showed a substantial increased in power throughout the RPM range to 1023hp/697ft-lbs

Skyline (BNR32 / BCNR33 / BNR34) GT-R Single Throttle Kit includes:

Collector Surge Tank Size is 4.1l(VS Normal121%)
Surge tank, base plate come pre-welded
Tuned internal velocity stacks on each runner for increased efficiency
CNC machined inlet runners L90㎜,  Pipe Size φ58-45(tapered)
Throttle-body hose diameter φ100mm、internal butterfly φ90mm, with low-profile throttle shaft
Specially designed and manufactured O-ring style gasket provide superior sealing for each runner
Compatible with OEM AAC valve and TPS throttle position sensor


Tuesday, February 26, 2019

Dsport Forced Induction 86 Challenge Winner - Video

The GPP GTX2867R Gen2 Tuner Turbo Kit wins Dsport Magazine's (Forced Induction) 86 Challenge, with the quickest track lap, the second highest dyno numbers at just 10.7psi  without dangerous "boost creep" (4.5psi lower base boost level then one of the other turbo kits) and second highest overall Editor's Driving Impression score.   (for more details see below)
Watch Dsport's Review Video...

RECAP: of the 86 Challenge

With a winning overall score of 239pts, the Greddy Performance Products GTX2867R Gen 2 Tuner Turbo Kit FRS Challenger takes Win over the other Forced Induction challengers...

  • 239pts. - GPP tuner turbo kit      - (268.70hp / 208.38ft-lb @10.7psi)
  • 236pts.  - HKS turbo kit                         - (285.63hp / 221.05ft-lb @15.22psi)
  • 199pts.  - Edelbrock supercharger kit   - (248.29hp / 182.45ft-lb @13.79psi)
  • 193pts.  - Vortech supercharger kit       - (228.20hp / 183.30ft-lb @10.5psi)
  • 148pts.  - AVO turbo kit                         - (253.01hp / 222.85ft-lb @10.7psi)
NOTE:  For reliability reasons, GPP doe not recommend boosting more then 12psi on a stock FA20 engine.  Overboosting can lead to premature engine failure. 

The GTX2867R Gen2 Turbocharger in the GPP Tuner Turbo Kit is rated for 550hp and is easily able to make even more power by increasing the boost level (additional engine strengthening required)

To equalize all competitors, each car used the stock oem FA20 engine with the same: engine oil, radiator, oil cooler, coil-overs, anti-sway bars, brake pads, brake rotors, wheels, tires.  They were also tuned by the same tuner on 91 octane.


The GPP Turbocharged FR-S had the quickest track lap, the second highest dyno numbers (at a 4.5psi lower base boost level) and second highest overall Editor's Driving Impression score.

GPP GTX2867R Gen2 Turner Turbo Kit - p/n 11518000

Friday, February 15, 2019

GReddy X Bride Collaboration ZETA III & Euroster II Seats

   - Order must be received by February 25th, 2019
      -  Visit www.ShopGReddy.com to place your order now!

GReddy x BRIDE EUROSTER Ⅱ - SPL. is a stylish and comfortable reclining sport seat made with a luxurious high-quality synthetic suede fabric. The new ergonomic design improves on driver usability while avoiding muscle strain.  This model focuses on user comfort for both entering/exiting the seat and for long drives.  The seat material used with EUROSTER II is high-quality synthetic suede fabric with carefully designed bolstering, which provides a luxurious feel with great anti-slip hold on the driver (or passenger).  The well-balanced design of EUROSTER series matches a wide variety of car models. It's a perfect model for the first time sports seat upgrade.

EUROSTER Ⅱ uses flame-resistant materials and weighs 14.6 kg.

GReddy GPP  p/n 70723006 - Click here to Pre-order!

Seat type: Reclining Sport
Seat color: Black
Stitch color: White
JDM sizing: Standard

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GReddy X BRIDE ZETA Ⅲ - SPL.   BRIDE's fixed  ZETA bucket seat, has won in countless races while always keeping drivers safe.  ZETA series is a standard racing comfort model among BRIDE's line-up, which has been tuned with consideration for wide variety motorsports settings.  ZETA's design characteristics are a narrowed-down waistline and small "needle-point" design at the shoulder support part, and a signature FRP silver back shell.

ZETAⅢis uses a flame-resistant materials and weighs just 7.2 kg,  FIA-compliant model.
GReddy GPP  p/n 70723007 - Click here to pre-order!

Seat type: Racing Bucket 
Seat color: Black/Blue
Stitch color: Blue
JDM sizing: Standard


Thursday, February 7, 2019

Two New GReddy Exhaust Arriving in February

The EVOlution GT exhaust for the 1990-96 (SW20) MR-2 Turbo is styled to resemble the legendary Power Extreme II MR-2 exhaust of the late 90’s-early 00’s. This makes the Evo GT the ideal exhaust system for a modern, period-correct SW20 MR-2 build. This new and improved version follows the same beautifully laid-out dual off-set muffler with extended wrapping tips, but it now, incorporates superior construction, improved stainless-steel materials and precision tig welding. The more compact, dual, straight-through EVO GT muffler canisters allow for great flow for both stock and upgraded turbo 3S-GTE engines. Like all GReddy EVOlution GT systems, this 304 Stainless-steel exhaust carries a limited lifetime warranty.

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The Supreme SP for the 2006-15 (GSE20) Lexus IS350 / IS250 features sophisticated exhaust note with an aesthetically functional design. The classic dual oval muffler axle-back system with large free flowing 63.5mm (2.5”) piping is comfortable to drive. Thanks to the two large SP mufflers, it has excellent sound suppression at idle and cruising. In spirited acceleration, the straight-through design makes the exhaust comes to life with a deep rich GReddy sound. Tradition double wall GReddy tips on each SP best matches the styling of the vehicle. Like all GReddy Supreme SP systems the fully hand-welded 304 Stainless-Steel exhaust carries a Limited Lifetime Warranty 

Tuesday, February 5, 2019

GPP Civic Si Lip Spoiler in Civic Sport Hatchback

We have confirmed that our GPP (FC3/FC1) Civic Si Lip Spoiler will also work on the (FK7) Civic Sport Hatchback model, by replacing the Sport's lower center grill with Honda OEM part # 71102-TGG-A00 from the Civic Si (which you can find new for about $100-120. or at any local Honda dealership parts dept.)

- Civic Si  FRP Lip       p/n  17550100    MSRP $430.
 - Civic Si  Carbon Lip p/n  17550101     MSRP $660.

Go to our homepage, www.GReddy.com for listing of 10th Gen. Civic Parts... 

Tuesday, January 22, 2019


Super Street Cover Feature:  
     Mr. Miura's USA spec. Greddy Performance Products, Inc. X Pandem FC3S RX-7

Vol. 23  No. 03 - March 2019

Pandem FC3S RX-7 Wide-body Kit
p/n 17040330 - see ShopGReddy.com

Winner of 2018 Super Street SEMA Ultimate Award, presented by Meguiar's (link)

Built by GPP for the 2018 SEMA Show

View the SS Cover Feature (here)
(download image)
Super Street SEMA Ultimate Award
"Best of Show"

Monday, January 14, 2019

2019 Tokyo Auto Salon

News from TRUST / GReddy Booth


Tokyo Auto Salon was held on Jan. 11-13, 2019
In addition to the normal high performance products for Japanese domestics like the Swift and R34 GT-R,  TRUST is expanding on it's line of "Overlander" Vehicles like this GReddy turbocharged Nissan Patrol Safari.
The GReddy 34RX GT-R showcased some of the newest development parts for the BNR34:
new Suction box, Circuit Spec Oil Cooler, PE-R Ver.3 exhaust and more...
Also new to the Sirius gauges, is this (OBDII) ISO CAN Connection Harness, that will allow displaying of ECU signals like Speed and RPM as well as boost, temps and pressures. Coming soon... p/n 16401938

Thursday, January 10, 2019

Fact vs. Fiction: California’s New Exhaust Noise Law


 REPOSTED from SEMA Action Network:


The Issue

California Assembly Bill (A.B.) 1824 was signed into law by then-Governor Jerry Brown in June of 2018 as part of the state’s budget process. The legislation amended how California law enforcement officials may issue a citation for exhaust noise violations.
The bill has generated significant concern within the industry and enthusiast community, along with some misinformation.  This document seeks to clarify the matter.  Most notably, enactment of A.B. 1824 did not change existing laws pertaining to exhaust noise or the sale and installation of aftermarket exhaust systems in California.  Here are the facts.

Were California’s exhaust noise rules changed?

No. Since 2003, exhaust systems installed on motor vehicles 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 Society of Automotive Engineers (SAE) test procedure J1169 (May 1998). This was not changed by A.B. 1824.

Is it now illegal to install an aftermarket exhaust system on my vehicle?

No. The sale and installation of an aftermarket exhaust system remains legal in California so long as it does not exceed a sound level of 95-decibels when tested under SAE J1169 and complies with all other exhaust and safety laws and regulations.

If exhaust noise laws didn’t change, what did?

Beginning January 1, 2019, a motorist cited for violating the current California exhaust noise law can receive an immediate fine. Previously, motorists received what is known as a “fix-it” ticket, which allowed for 30-days to correct the violation.

What are my options if I get a ticket?

Consumers in receipt of a violation still have the option of seeking a certificate of compliance from the California Bureau of Automotive Repair (BAR) demonstrating that their exhaust emits no more than 95-decibels. This SEMA-sponsored program allows courts to dismiss citations for exhaust systems that have been tested and for which a certificate of compliance has been issued. BAR does not currently issue preemptive certificates of compliance.

If I get pulled over, will I receive a $1,000 fine?

According to the Judicial Council of California’s Uniform Bail and Penalty Schedules for 2019, the suggested base fine/fee for a first conviction is $25 with a total fee of $193.

I’ve still got questions?

Please contact Christian Robinson, SEMA’s Director of State Government Affairs.