Designed to release excess compressor pressure caused by changing gears or backing off the throttle quickly, while allowing for maximum flow by venting all pressure back into the intake system. For the serious enthusiast not wanting to worry about noise, fuel deviations, and engine stalls of vent-to-atmosphere BOVs. The Tomei BOV allows for quick b...
TOMEI Blow Off Valves - Details
TOMEI Adjustable Cam Gears
Super Light Duralumin
The A2017 Duralumin Ally was chosen for it's super light weight properties.
Unique Design That Stands Out in the Engine Bay
Designed in 3D CAD it will add the finishing touch to your showroom style performance car.
Superior Accuracy
Both the pulley and the gear sections were manufactured by precision methods. This helps...
TOMEI Adjustable Cam Gears - Details
TOMEI Poncam Cams
Tomei's Poncam camshafts are designed as a "drop in application!", No dialing in required as the knock-pin has been pre-set so that the timing it set for you. No valve spring upgrades needed and this is the cheapest and best upgrade for street and track use. These will work on the OEM ECU settings and aftermarket ECU if you want more customized set...
TOMEI Poncam Cams - Details
TOMEI Procam Cams
The Tomei Procam series are for the serious users who need results when every millisecond counts. These will deliver the added power and are made for increased performance from mid to high end RPM.
Definitely not for the faint of heart!!
Will require professional installation and setup.
In pursuit of the most suitable profile
The cam p...
TOMEI Procam Cams - Details
TOMEI High Flow Catalytic Converters
The Tomei Stainless Steel High Flow Cat provides an excellent way to increase horsepower all while keeping you legal. This High Flow Cat is TIG welded with 100% 304 stainless components.
Features:
Includes gaskets and hardware
Unrivaled fit and finish
TOMEI High Flow Catalytic Converters - Details
TOMEI Connecting Rod Bolts
The burden of the Connecting Rod Bolt will increase remarkably due to raising of the engine's RPM or increased gas pressure. Moreover, in stroked engines, piston speed will rise and severe load will be added. Reinforced Connecting Rod Bolts are one of the performance parts which improves reliability.
Using forged SCN440 material for it's head p...
TOMEI Connecting Rod Bolts - Details
TOMEI Forged H Beam Connecting Rods
Tomei's forged connecting rods have been known for their strength to keep your engine from failing when you have a lot on the line for a race or just your highly tuned street machine. Get yours now for no regrets!
H-Beam
The selection process between both I-Beam and H-Beam designs are usually decided upon the weight, buckling strength and pro...
TOMEI Forged H Beam Connecting Rods - Details
TOMEI Forged Crankshafts
Tomei's highly durable, full counter crankshaft is designed for extra strength and is an absolute must for those aiming for high power outputs. As used in professional racing applications for circuit and drag racing.
TOMEI Forged Crankshafts - Details
The T-Trax Advance is the most effective LSD unit available & has the best overall advantage in comparison with other aftermarket products available today.
Smoother operations and stable behavioral changes while either ON or OFF the throttle. There is no loud LSD crackling sounds, making it more comfortable for the daily street driven car.
B...
TOMEI Technical Trax Advance Limited Slip Differentials - Details
TOMEI Expreme Downpipes
Exhaust efficiency can be improved by lowering the secondary exhaust pressure following the turbine. But when the diameter of the pipe becomes too wide, torque will be greatly effected and will be lost. Tomei engineers have spent over 1 year testing all possible combination's to achieve the highest possible performance while maintaining durability ...
TOMEI Expreme Downpipes - Details
TOMEI Exhaust Gaskets
The Tomei metal exhaust gasket guarantees high surface pressure by adopting the bead structure in the stainless steel material, thus preventing any exhaust leaks.
TOMEI Exhaust Gaskets - Details
TOMEI Expreme Exhaust Manifolds
Expreme Exhaust Manifolds deliver response and performance that show at low, mid, and high RPM stages. Quick throttle response is the result of non-isometric short pipes. These manifolds are made from 100% SUS304 stainless steel utilizing the lost wax manufacturing method. The result is superior corrosion resistance, weight reduction, and reduced c...
TOMEI Expreme Exhaust Manifolds - Details
TOMEI Full Titanium Exhaust Systems
Tomei introduces their Titanium High Flowing Ultra-Lightweight Competition Exhaust System.
Unlike most exhaust systems that focus only on maximum peak power, Tomei's main priority was for overall engine performance gains. Every tube's length and size were carefully picked to suit each engine's characteristics and chassis to maximize torque, r...
TOMEI Full Titanium Exhaust Systems - Details
TOMEI Flywheel Bolts
Since some 4AG motors can be old, the flywheel bolts will usually be worn as well. Tomei has made these Tomei Flywheel Bolts available for the 4AG with a 12 point head to prevent stripping. There are 8 Tomei Flywheel Bolts included in this set. The size of each bolt is M10x1.25.
TOMEI Flywheel Bolts - Details
TOMEI Denso Fuel Injector Clips
This is required with all Denso injector upgrades for those who needed to upgrade their injectors when aiming for high power gains from tuned engines. All Nissan and Subaru owners who upgrade their injectors to Denso types will require this part for installation. This coupler is the most compatible injector with all Denso made round coupler connect...
TOMEI Denso Fuel Injector Clips - Details
TOMEI Fuel Injectors
Advanced engine tuning will require increased air and fuel delivery for increased power output. Since this will exceed the stock injectors, the need to upgrade is necessary. Increasing fuel supply is generally required with most upgrades, from increasing boost to installing more aggressive cams.
TOMEI Fuel Injectors - Details
The Tomei fuel delivery pipe secures the performance indispensable to tuning engine, such as pipe capacity that sends in gasoline certainly even when oversized injector is attached, high heat radiation which prevents percolation, and stable pumping pressure.
TOMEI Fuel Rails - Details
TOMEI Head Gasket Sets
This kit includes RB26 Metal Head gasket and other manifold gaskets required. Also, attachment of oil gallery orifice at the time of replacing head gasket allows controlling the amount of oil to flow. Replacement of manifold gasket can gain strength and sealing characteristics. The price of this kit is set as low as the one metal head gasket, and e...
TOMEI Head Gasket Sets - Details
TOMEI Metal Head Gaskets
Since intensity of stainless steel is high, it can make the joint rigidity of the cylinder head and the engine block high and prevents blown head. If combination of a head and a block is firm, twist and bent of the whole engine can be reduced while rigidity is increased, and the durability of power transmission will be improved.
How about a bigg...
TOMEI Metal Head Gaskets - Details
TOMEI Head Studs
In harsh times and conditions the stress can be too much to handle. You do not want your engine having any weakpoints and not being able to keep it together when you need it. Again do not overlook this simple basic essential at the risk of a complete engine rebuild.
Each kit includes a full set of head studs for your engine application.
TOMEI Head Studs - Details
TOMEI Headers
The Tomei Expreme manifolds are made high quality certified T304 stainless steel and is tig welded for a more precise and perfect finish. This kit features unequal length exhaust header for single scroll turbines. What makes this kit unique is that this kit comes with everything seen in the picture for an all-in-one install kit. There is no need...
TOMEI Headers - Details
TOMEI Expreme Heat Shields
This is a direct bolt on heat shield made from stainless steel and will fit with Tomei's Expreme Header or with the OEM factory exhaust manifold.
TOMEI Expreme Heat Shields - Details
TOMEI Intake Manifold Gaskets
Tomei 131002 Intake Manifold Gasket Nissan Skyline GTR RB26DETT Tomei gaskets are made from high quality material for sealing properties second to none. They come in a wide verity of sizes to suit all your Japanese engine needs. Specially designed with performance in mind these gaskets are well worth the extra cost of the conventional OEM gasket de...
TOMEI Intake Manifold Gaskets - Details
TOMEI 4 Throttle System Intake Manifolds
In order to build the best EJ engine, the Tomei R&D engineers focused on a highly responsive and powerful setup that still maintained big torque figures. For this objective to become a reality, countless data acquisition and numerous testing was performed on the engine dyno. As a result, the response was like having the throttle body directly conne...
TOMEI 4 Throttle System Intake Manifolds - Details
TOMEI Solid Lifter Kits
This is an absolute must for achieving higher horse power setups to eliminate the hydraulic setup which is required for big cam lift profile camshafts.
TOMEI Solid Lifter Kits - Details
TOMEI Main Bearings
When tuning engines for higher power output and high RPM the bearings are subjected to extreme load conditions. These harsh conditions require the bearings to be able to cope with excessive loads and stress conditions. The Tomei Competition Bearing series are designed for fatigue resistance, durability, effective lubrication and resistance to scori...
TOMEI Main Bearings - Details
TOMEI Main Studs
Keep Your Crank In Place!
In harsh times and conditions the stress can be too much to handle. At higher RPMs and Boost applications you want to keep your crank in place. Ensure that you have the adequate safety measures in place for that added support.
TOMEI Main Studs - Details
TOMEI Expreme O2 Housings
Tomei's outlet pipe (dump pipe) was made larger for assured exhaust ratio improvement, the instability and deterioration of supercharging pressure decreases the response of power from the secondary exhaust pressure which can cause a substantial decrease.
With Tomei's persistent engineers staying back in their free time as usual and even more on ...
TOMEI Expreme O2 Housings - Details
TOMEI Oil Filler Caps
One of the most innovative Oil Filler Caps on the market is the Tomei Oil Filler Cap.
This Oil Filler Cap was designed by 3D CAD in the shape of an RB26 forged piston, which is then made from a solid block of billet aluminum. Available in Polished Silver, Bronze and Anodized Blue.
TOMEI Oil Filler Caps - Details
When the vehicle is cornering or accelerating and decelerating, oil in the oil pan will lean or splash. To prevent this, the baffle is assembled in the pan of a stock engine. Though, in terms of sports driving, it is almost impossible to achieve it's purpose because the size of the baffle is restricted to cut down the production cost. If oil leans ...
TOMEI Oil Pan Baffles - Details
TOMEI RB26DETT Oil Pumps
The RB26DETT is a high revving engine, but can often fail due to the weakness of the oil lubrication system.
The stock oil pump cannot maintain adequate amount of oil or oil pressure the RB26 demands at extreme engine speeds. The stock pump gear is made of weak sintered metal and can often break at high power levels and engine speeds. When ther...
TOMEI RB26DETT Oil Pumps - Details
TOMEI Forged Pistons
Pistons are one of the key elements in engine tuning. Tomei have applied their famous R&D engineering into this design as well. Their forged pistons have a long history of extended reliability due to the design and manufacturing techniques that they use in making these pistons.
TOMEI Forged Pistons - Details
TOMEI Rocker Arm Stoppers
When the engine is revving and high RPMs, the rockers tends to float and is one of the main concerns on the SR20DET. Tomei Rocker Arm Stopper keeps the rocker in place to prevent rocker flying out and causing serious engine damage.
Tomei Rocker Arm Stoppers are the best ones available in the market today. Each set of Tomei Rocker Arm Stoppers a...
TOMEI Rocker Arm Stoppers - Details
TOMEI Rod Bearings
Connecting Rod Bearings are one of the most overlooked items in engine assembly. When you have the best crank and Connecting Rods this simple item is actually not as simple as you think. These bearings will keep maximum lubrication and extended reliability.
When tuning engines for higher power output and high RPM the bearings are subjected to ex...
TOMEI Rod Bearings - Details
TOMEI Shift Knobs
Tomei Duracon Shift Knob for compatible M10 x 1.25mm shifters. Made of Duracon, a material of Poly methylene composites that is known for their high degree of crystallization, and in turn offers high strength, stiffness and hardness, good chemical and environmental resistance including heat and moisture absorption. The shift knob is about no more t...
TOMEI Shift Knobs - Details
TOMEI Solid Pivot Sets
In order to make cam clearance maintenance-free, and achieve operation sound reduction, hydraulic lash adjusters were adopted. However, when aiming at high rotation and a high output by engine modification, it is important to improve the reliability of head parts and to make valve train function correctly. Accordingly, it is necessary to eliminat...
TOMEI Solid Pivot Sets - Details
TOMEI Solid Pivot Shims
Use these Tomei Solid Pivot Shims to correctly set the lash between the rocker arm and valve in your valve train.
Other sizes are also available. If you do not see the size you need, please feel free to inquire about finding the proper size.
TOMEI Solid Pivot Shims - Details
TOMEI Spark Plug Covers
The Tomei metal ornament plate (also known as a rocker or spark plug cover) for the SR20DET and RB26DETT engines provide that custom engine bay look, perfect an engine modified with any of the Tomei high quality engine parts.
TOMEI Spark Plug Covers - Details
TOMEI Stroker Kits
With just a little displacement increase can deliver a dramatic change in your engine. Huge torque that delivers improved acceleration and superior response even with light throttle use. More power is now available to compliment the larger turbines that you want to use. The complete kit contents are all forged parts for the highest quality, precisi...
TOMEI Stroker Kits - Details
TOMEI Timing Belt Guides
Horizontally opposed engines combust structurally at 180 degrees; increasing the chances of the camshafts not performing at their maximum lift. Because of this, installing high lift camshafts in these engines may create unnecessary belt vibration leading to the pulley spinning off the rotating assembly. Without the pulley in it's rightful place, th...
TOMEI Timing Belt Guides - Details
TOMEI Timing Belts
Although timing belt is common as a camshaft drive mechanism, its design and specification are not suitable for the tuned turbo charged engine while it has enough quality to the standard engine. Durability of the belt is reduced badly from higher rotation of the engine, installation of high lift camshaft, increasing transfer torque from performance...
TOMEI Timing Belts - Details
TOMEI ARMS Turbo Kits
The ARMS M7760 is the largest bolt-on turbo possible that the engineers can fit into the limited space of the EJ engine compartment. Despite the size, the internals of the turbocharger speaks otherwise; extracting the most efficiency from it's design. The end result is a turbo that maintains the best characteristics of the EJ engine with the added ...
TOMEI ARMS Turbo Kits - Details
TOMEI Valve Guides
Tomei decided to make their Valve Guides from Phosphor Bronze (Cn-Sn-P alloy) for it's high tensile strength and superior heat transferring ability which is vital in high power and high RPM engines. Since race engines these days require more power at higher RPM use with leaner AFR mixtures, these engines now experience more extreme heat conditions ...
TOMEI Valve Guides - Details
TOMEI Bery-Ring Valve Seat Locators
The function of a valve sheet is maintaining air tightness with a valve, and generally wear resistance is required. However, with the engine used under high RPMs and high load, the cooling performance of a valve sheet becomes very important further, and it is greatly concerned with an engine output. When engine is under high RPMs and high load, it ...
TOMEI Bery-Ring Valve Seat Locators - Details
TOMEI Valve Spring Shims
Application & Purpose:
When installing aftermarket valve springs in a head assembly, the amount of load applied to each spring needs to be adjusted until everything is in uniform specification. This is a standard procedure which all race engines go through in order to be able to raise the engine RPM without any glitches or hesitation. The standard...
TOMEI Valve Spring Shims - Details
TOMEI Valve Springs
At Tomei Powered, they have valve springs for many applications. Their R&D departments target was to develop valve springs with the best overall material and surface hardened finish for delivering the best performance results when needed. With many test prototypes they have the best final end product to deliver satisfaction and results. These were...
TOMEI Valve Springs - Details
TOMEI performance parts & accessories at HorsepowerFreaks
