Apexi is one of the most famous Japanese companies focused on track-tested performance parts, that operates since 1992. Primarily, Apexi focuses on the products that are designed to enhance engine performance. The company’s product line includes Apexi mufflers, intercoolers, turbos, Apexi exhaust systems, engine control units like the Apexi Power FC and Apexi RSM, and a multitude of other components and accessories for all of the aforementioned products, for instance, Apexi turbo timers or head gaskets.

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    • (1 review)
      # sp93940
      D-Jetro Power FC by APEXi®. A New Bi-planer VFD multi-purpose digital meter to replace and visually enhance traditional analog meters. Kit includes: Display Head Unit, Sensor Unit, Two x Temp. Sensors (1/8PT) with (2.5 meter) connector...
      Manufactured from premium materialsDesigned to strict quality standards
      $896.64 - $1,202.95
    • (0 reviews)
      # sp19994
      N1 ExV Coilover Kit by APEXi®. The N1 ExV Damper is the newest edition to high performance street line of coilover suspension. The Expert Type V (ExV) is a full coilover suspension featuring a threaded base for precise ride height...
      32-way damping adjustmentRide-height adjustment
      $890.31 - $1,187.50
    • (0 reviews)
      # sp20087
      N1 Evo-R Exhaust System by APEXi®. The N1 series muffler has become a staple of the import tuning industry. The N1 was the first of its kind to incorporate the classic angled muffler design that has became so familiar with today's...
      $564.68 - $850.82
    • (0 reviews)
      # sp20085
      Hybrid Mega Evo Exhaust System by APEXi®. The Hybrid Megaphone Evolution is a complete stainless steel exhaust system, from the main muffler canister and piping to the internal silencers, resonators, hangers, and brackets. This system...
      $403.11 - $1,319.47
    • (2 reviews)
      # sp20096
      N1 Exhaust System by APEXi®. The N1 series muffler has become a staple of the import tuning industry. The N1 was the first of its kind to incorporate the classic angled muffler design that has became so familiar with today's street...
      $403.11 - $967.73
    • (0 reviews)
      # sp20088
      N1 X Evolution 304 SS Exhaust System by APEXi®. The N1 Evolution Extreme is based on the proven performance basics of the N1 muffler which emphasizes optimum exhaust efficiency utilizing a straight-thru layout design. Equipped with an...
      $947.20 - $2,374.71
    • (0 reviews)
      # sp20089
      NOIR Exhaust System by APEXi®. The NOIR Muffler was developed specifically with the diehard street car enthusiast in mind. The NOIR Muffler is designed to be quieter than a typical racing exhaust while minimizing chances of unwanted...
      $532.37 - $658.54
    • (0 reviews)
      # sp49212
      SMART Accel Controller by APEXi®. APEXi Original Accelerator Controller with 7-modes (3 ECO Modes, 2 Boost Modes, Lo-Throttle Mode, and Hi-Throttle Mode).
      Manufactured from premium materialsDesigned to strict quality standards
      $175.75
    • (0 reviews)
      # sp20095
      N1 304 SS Cat Test Pipe by APEXi®. The N1 CAT pipe (test pipe) offers substantial performance gains by minimizing exhaust flow restriction and optimizing exhaust performance. Made of a straight-through SUS304 stainless steel pipe with...
      Designed to boost your vehicle's performanceIncreases Horsepower
      $217.21 - $236.55
    • (2 reviews)
      # sp20090
      WS2 Exhaust System by APEXi®. The WS Exhaust series is the A'PEX answer to the ultimate street muffler system with all around performance. The canister is made of the highest grade polished SUS304 stainless steel while the mandrel bent...
      $370.80 - $1,083.08
    • (0 reviews)
      # sp29998
      N1 Evolution-X Midpipe by APEXi®. The N1 Evolution Extreme is based on the proven performance basics of the N1 muffler. Optimum exhaust efficiency is achieved through the mid-pipes running parallel between the catalytic converter and...
      High-level of quality using tig-welded SUS304 stainless steel uniting quiet performance with high-power performance gainsMatched and manufactured for select chassis
      $468.18 - $1,046.91
    • (0 reviews)
      # sp48540
      Power Air Intake System by APEXi®. When it comes to impeccable design, unsurpassed quality, and great value, Apexi leaves all the rivals far behind. This high-grade Apexi product is a great one to try if you want to enjoy enhanced...
      Designed for superior air filtrationProvides virtually unrestricted air flow over the OE
      $86.28 - $357.64
    • (0 reviews)
      # sp48539
      Power Air Filters by APEXi®. Some manufacturers of performance air filters make aggressive claims about their filter's ability to make power, but leave out the fact that their filters are not effective at filtering dust and dirt....
      Progressive-density filter element improves power and efficiency, without compromising ability to filter dust and dirtDry-type filter element requires no oiling, and will not foul air flow sensors
      $36.53 - $78.26
    • (0 reviews)
      # sp48538
      Intake Box by APEXi®. When it comes to impeccable design, unsurpassed quality, and great value, Apexi leaves all the rivals far behind. This high-grade Apexi product is a great one to try if you want to enjoy enhanced performance of...
      Designed for superior air filtrationProvides virtually unrestricted air flow over the OE
      $190.85
    • (0 reviews)
      # sp129816
      Dust Boot by APEXi®. No one specific suspension setup is adequate for all types of road conditions, vehicle types, and driving styles. For this reason, we offer a variety replacement parts specifically designed to customize the handling...
      Hand crafted welds ensure maximum longevity and performanceIdeal for the daily driver car of an enthusiast
      $19.52 - $24.41
    • (0 reviews)
      # sp125376
      Cylinder Head Gasket by APEXi®. The APEXi metal headgaskets provide upgraded protection on high horsepower engines. Factory headgaskets cannot withstand the pressures of high output operation and often cause the engine to "blow." This...
      Ideal for the daily driver car of an enthusiastMade from high-quality materials
      $171.77 - $335.76
    • (0 reviews)
      # mpn470412232
      vehicle types, and driving styles. For this reason, we offer a variety replacement parts specifically designed to customize the handling characteristics of our N1 Damper lineup. Standard replacement parts are also available for lost or...
      Hand crafted welds ensure maximum longevity and performanceIdeal for the daily driver car of an enthusiast
      $56.55
    • (0 reviews)
      # mpn470411762
      NOIR™ Mild Steel Cat-Back Exhaust System with Single Rear Exit by APEXi®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Mild Steel. Main Tubing Diameter: 3". Exhaust System Sound: Moderate. The NOIR Muffler was developed...
      $588.92
    • (1 review)
      # 865848575
      Universal WS2 304 SS Exhaust Muffler Oval Dual Wall Rolled Angle Cut Tip by APEXi®. Muffler Outlet Diameter: 4". Muffler Sound: Moderate. The Apex Universal muffler series is the perfect choice for those who want to fabricate a unique...
      $286.11 - $294.53
    • (1 review)
      # 865808570
      Universal NOIR 304 SS Oval Exhaust Muffler with Round Single Wall Angle Cut Tip by APEXi®. Muffler Outlet Diameter: 3.9". Muffler Body Length: 14.96". Muffler Sound: Moderate. Muffler Configuration: Center - Center. The Apex Universal...
      $286.11
    • (1 review)
      # 865799566
      Universal N1 Evolution-R 304 SS Exhaust Muffler by APEXi®. Muffler Outlet Diameter: 4.3". Muffler Body Length: 18". Muffler Sound: Moderate. Muffler Configuration: Center - Center. The Apex Universal muffler series is the perfect choice...
      $222.67 - $259.02
    • (1 review)
      # 865845565
      Universal N1 304 SS Round Exhaust Muffler with Round Single Wall Straight Cut Tip by APEXi®. Muffler Sound: Moderate. Muffler Configuration: Center - Center. The Apex Universal muffler series is the perfect choice for those who want to...
      $271.74 - $315.57
    • (0 reviews)
      # 227338073
      Universal Mounting Bracket for APEXi Electronics Gauges by APEXi®. The APEXi mounting bracket accessory is good for use on any one of our electronics components: from the AFC, AVC-R, EL II Meters, DIN3 Meter, to the Power FC Commander,...
      Hand crafted welds ensure maximum longevity and performanceIdeal for the daily driver car of an enthusiast
      $17.94 - $32.60
    • (0 reviews)
      # 216915815
      Universal D-Jetro Power FC Accessories by APEXi®. The FC Commander PRO Software enables connectivity to the Power FC ECU for for real-time programming and data logging. Product includes a serial (9-Pin) Interface Cable and downloadable...
      Manufactured from premium materialsDesigned to strict quality standards
      $33.22 - $293.38
    • (0 reviews)
      # 842031745
      3Bar MAP Sensor Harness by APEXi®. The Power FC is APEXi solution to all of your tuning needs and stands as the flagship tuning device in the APEXi lineup of electronics. Depending on your needs you can order anything from replacement...
      Manufactured from premium materialsDesigned to strict quality standards
      $23.92
    • (0 reviews)
      # 865815591
      Active Tail Exhaust Silencer Insert by APEXi®. Muffler Inlet Diameter: 1.34". Muffler Body Length: 7.1". Muffler Sound: Moderate. Muffler Configuration: Center - Center. Current tail silencers are a restriction for power under high load...
      $199.94 - $209.03
    • (0 reviews)
      # 882289179
      Power Round Tapered Red Air Filter by APEXi®. Some manufacturers of performance air filters make aggressive claims about their filter's ability to make power, but leave out the fact that their filters are not effective at filtering dust...
      Progressive-density filter element improves power and efficiency, without compromising ability to filter dust and dirtDry-type filter element requires no oiling, and will not foul air flow sensors
      $72.00
    • (0 reviews)
      # 723900329
      GT Radiator Cap by APEXi®. Get this top-notch GT radiator cap meticulously engineered to provide 1.3 kg/cm2 of pressure. This enables higher cooling system pressures which increase the boiling point of the coolant therefore ensuring...
      Tested to outperform all comparable products on the marketMade from premium materials to endure years of abuse
      $28.11
    • (0 reviews)
      # 132242991
      Exhaust Control Valve by APEXi®. The ECV was created as an alternative to the standard silencer typically fitted in the tip of performance exhaust systems to lower the sound decibel output. The ECV (Exhaust Control Valve) is a spring...
      Can minimize exhaust decibel level output by 10dB (depending on application)Utilizes mechanism that can be easily adapted to any existing exhaust piping
      $46.96 - $180.86
    • (0 reviews)
      # 772603915
      Exhaust Gasket by APEXi®. Exhaust gaskets for A'PEXi exhaust systems. Constructed of a metal center layer with composite outer layer to withstand high temperatures and improve sealing. By replacing the exhaust gaskets, you can prevent...
      Designed to boost your vehicle's performanceMade from high-quality materials
      $6.73




    Apexi was founded on the principles that high-quality aftermarket automotive performance parts should be available to everyone at affordable prices. This founding principle has attained almost instant recognition worldwide. Since its inception as a small tuning parts manufacturer, Apexi has quickly acquired a global reputation for being among the leading providers of aftermarket automotive performance parts.

    Apexi’s championship victories and prizes and more than 20 years of racing heritage can be traced throughout the company’s lineup. Localization of parts and products has been a continuing top priority, so that the company can better serve the requirements of their customers. The company is now applying the extensive knowledge that it has acquired from automotive motorsports and uses it to extend its research and development into new, highly advanced commercial business ventures. The Apexi group of companies continues to grow with motorsports and the worldwide street tuning culture as

    APEXi Reviews

    Average rating:  5  4.8 - 6 reviews
    4.8 of 5
    10/10 APEXI N1 Exhaust-Acura RSX Type-S
    Looks and sounds fantastic! it hangs out a little past the bumper so it looks without a doubt aftermarket. Sounds super deep, with a canister diameter of 4.53" it makes your car very loud but not so obnoxiously loud that you will get the police called on you. It has heads turning all day and the A'PEXI name is unbeatable. Very easy to install, but removing the stock exhaust can be a pain if it is rusted(like mine was). The product does not include the bolts attaching the catalytic converter so if the stock bolts are rusted you will need to run to a local auto-part store for some new ones. The canister gets very hot, make sure there is at least 1/2" of clearance or your bumper will start to melt around and onto the canister. I have the stock bumper and the clearance can was a problem. Longer rubber hangers can fix it or adjusting how the exhaust sits until you are confident that melting wont be a problem. Besides the usual problems that occur when working on a car, the N1 is fantastic, it is an absolute hog of an exhaust system and I would highly recommend it. A'PEXI spared no expense in bringing you one of the best sounding and looking aftermarket exhaust systems legally available. Definitely worth the price, you are paying for quality.
    APosted by Alec (Gig Harbor, WA) / February 11, 2018
    2005 Acura RSX
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