null Nissan, Infiniti & Subaru Custom & Performance Parts | TBW Performance

Free Shipping on Orders over $99 to Lower 48 States

phone: 702.900.7505



2007+ G35/G37/G37X/Q40 Sedan Rear Aluminum Diffuser BLACK

5 reviews Write a Review
Adding to cart… The item has been added
Usually ships within 24 hours
  • Free Ground Shipping

  • Custom

  • Safe Payments


This rear aluminum diffuser is designed specifically for the V36 Infiniti G35 and G37 Sedans.  It is designed to bolt right into stock locations, wither very little modification required.  It gives the subtle aggressive look that you have been looking for to set you apart from the competition and effectively helps for those who may use during track applications.  It has been designed to work with most exhaust systems available for the Infiniti G35 and G37 (V36) sedan applications.  This will not work for the coupe.  
Installation is simple and straight forward as it bolts into the stock applications.  On the rear bumper, you will need to drill one more hole for an additional plastic push clip in the location that is laser cut out.  This simply helps to hold the rear portion nice and tight up against the bumper.  If, during installation, your OEM exhaust heat shields are rubbing, simply bend them slightly away (or cut them away if you prefer).  

New installation hardware is included

2007-2008 G35 Sedan
2009-2013 G37 Sedan
2009-2013 G37X Sedan

2014 Q40


  • LASER CUT - Precise cuts to fit stock mounting points
  • FUNCTION & FORM - Helps improve under aero-dynamic wind and also adds a visual touch of aggressiveness


2007-2008 G35 Sedan
2009-2013 G37 Sedan
2014 Q40

5 Reviews

  • 5
    Best rear diffuser ever.

    Posted by Sergio Quesada on Dec 5th 2018

    I currently bought a carbon fiber diffuser and this beats it, performance and aggressiveness wise. It's easy to install, less than 10 minutes with basic tools, and a drill with bits to make a extra punch hole on your bottom part of your car's rear bumper on the corner. Everything bolts on to your factory holes without any modifications and fits better then your OEM plastic crap we have in our sedans. I'm for sure know that this diffuser does channel air 100 percent better than the plastic one. Its built strong and weighs about the same as the original. Don't think twice of purchasing anything from tbw performance they are pros when it comes to our G37.

  • 5
    Direct fits G sedans

    Posted by Unknown on Feb 20th 2018

    It simply replaces the stock rear cover utilizing a more functional diffuser. Lots of clearance for the tow hook and the exhaust shields just need to slightly be bent to fit it. After in shields could be bent back. Thick piece of aluminum and with the supplied fastening locations, a very sturdy piece.

  • 5
    Amazing product

    Posted by Evan krantz on Sep 10th 2017

    Was able to add not only an aggressive look but effective rear aero to a v36 g35 sedan. This is a great product, if you are even here considering this product, stop, and purchase this now. This is a better product than what came factory on my lotus exige for aero. I will be buying the front under tray after this.

  • 5
    2013 G37x Sedan

    Posted by Fran on Aug 1st 2017

    Fits great and also gives my car a mean look, my coworkers love it. Will recommend it to my G&Q buddies with AWD.

  • 5
    2012 g37x sedan

    Posted by Unknown on Jul 17th 2017

    Fits perfectly and looks great.