S4 Turbo upgrade 2007-2013 Mazdaspeed 3, Mazdaspeed 6 and CX7, MPS 3, MPS 6
S4 Turbo upgrade 2007-2013 Mazdaspeed 3, Mazdaspeed 6 and CX7, MPS 3, MPS 6
S4 Turbo upgrade 2007-2013 Mazdaspeed 3, Mazdaspeed 6 and CX7, MPS 3, MPS 6
S4 Turbo upgrade 2007-2013 Mazdaspeed 3, Mazdaspeed 6 and CX7, MPS 3, MPS 6
S4 Turbo upgrade 2007-2013 Mazdaspeed 3, Mazdaspeed 6 and CX7, MPS 3, MPS 6
S4 Turbo upgrade 2007-2013 Mazdaspeed 3, Mazdaspeed 6 and CX7, MPS 3, MPS 6
S4 Turbo upgrade 2007-2013 Mazdaspeed 3, Mazdaspeed 6 and CX7, MPS 3, MPS 6
S4 Turbo upgrade 2007-2013 Mazdaspeed 3, Mazdaspeed 6 and CX7, MPS 3, MPS 6
S4 Turbo upgrade 2007-2013 Mazdaspeed 3, Mazdaspeed 6 and CX7, MPS 3, MPS 6
S4 Turbo upgrade 2007-2013 Mazdaspeed 3, Mazdaspeed 6 and CX7, MPS 3, MPS 6

S4 Turbo upgrade 2007-2013 Mazdaspeed 3, Mazdaspeed 6 and CX7, MPS 3, MPS 6

Regular price$1,300.00
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Shipping calculated at checkout.

The BNR S4 is the most popular turbocharger in the MZR market!  The S4 will max out the original engine and has enough on the table to make 490 WHP with Auxiliary fueling.  Great response and amazing sounds come from this unit!  Makes a great entry level turbocharger for built engines.

  • 3071 Gen 2 CHRA Rated at 56 lb/min
  • VSR Balanced
  • BNR Upgraded compressor housing with Antisurge port
  • Heavy Duty 15 psi wastegate actuator
  • Heavy Duty wastegate swing valve construction
  • 30 mm wastegate port
  • .72 a/r turbine housing

Install kit includes:

  • 9 M10 1.5 staintless studs
  • 9 M10 1.5 stainless nuts
  • 9 M10 stainless washers
  • 2 M12 copper sealing washers
  • 4 M14 copper sealing washers
  • 2 Oil outlet gaskets
  • Stainless MLS turbine inlet gasket
  • Stainless MLS turbine outlet gasket
  • Firewall side extended stainless water line

*Divorced down pipes sometimes do not work with our turbocharger upgrades!  If they are used, the wastegate valves sometimes don't function  properly causing extreme high boost conditions!*

*Built engines need a custom oil supply line for turbocharger protection!  Click link for details!*  Purchase from Graveyard Performance!

 

 

 

FREE CONTINENTAL USA SHIPPING -

Orders may qualify for free shipping based on your order meeting set criteria. These criteria may include, but are not limited to, order total, order weight, domestic vs. international, delivery location, box count, etc. Unless we have told you otherwise, free shipping is only applicable for addresses within continental United States (lower 48 state).

Some products may also display as eligible for free shipping based on your location and what delivery services are available to your location.

Products can also be excluded from free shipping and will say as such when that is the case. These are usually due to product weight and or size. Any displayed Free Shipping promotions for a product are limited to the continental United States (lower 48 state) or digital delivery.

You can see if any part of your order qualifies for free shipping during checkout.

INTERNATIONAL SHIPPING -

We offer international shipping for those outside of the USA but due to low international volume we do not collect taxes or duties. This does NOT cost you any more as it is the same rate you would pay through BNRturbos.com if we collected. We simply do not have the tax accounts all over the world to report and pay the taxes and do not do sufficient volume to require collection. You will be responsible to pay the taxes and duties upon delivery. The shipping label will have the correct order total so that it can be insured properly, your country will probably charge you duties and shipping based on that transaction amount.

OVERNIGHT SHIPPING AND SHIPPING CHANGES

Overnight, Next-Day Air, or Express shipping means only that your order will ship using the selected service. It is not guaranteed that your order will ship the day it is placed. If urgent, you should call or email to verify how long it will take to fulfill. Many items require customization for the order and it may take 1-7 days depending on product. Complete custom builds that require your core can take 4-8 weeks after receiving your core.

Weekend and holiday services are not guaranteed. Saturday delivery service options will not show at check out the Friday before. Contact BNR for expedited build and shipping options prior to placing your order.

BNR works diligently to ship each order as fast as possible. For your benefit, we often elects to upgrade your shipping service to an equal or faster method. UPS and USPS pick up packages Monday-Friday. Please note, we are only open Monday-Friday so orders placed for express shipping after hours or on weekends we will not see until the next business day. If you have emergency needs please call to ensure timeliness.

 

DAMAGED PRODUCT PROCEDURES

All items purchased from BNRturbos.com are made pursuant to a shipment contract. This means that the risk of loss and title for such items pass to you upon our delivery to the carrier. We ship all items WITH shipping insurance and are not responsible for damages caused during shipping. DO NOT file a claim with the shipping company if your item was damaged during transit. If you file a claim through the shipping company, it will be denied. Please contact us WITHIN 24 HOURS so we can initiate the correct compensation procedures through the shipping company. You may be asked to send pictures of the parts and packaging for claim purposes. PLEASE INSPECT YOUR ITEM BEFORE SIGNING FOR IT, IF YOU DO NOT AND IT IS LATER DISCOVERED THAT THE ITEM IS DAMAGED, YOUR CLAIM WILL BE DENIED! Make the shipper wait if you must, make sure to ALWAYS inspect ANY package you get before the shipper leaves. Any damage not reported within 24 hours cannot be disputed and we will not be able to initiate a claim.

BNR Cancelation and Return Policy

We do not do cancelations or refunds once the order has reached the fulfillment status (meaning it has started the shipping process). Custom products requiring a core can not be canceled once we start working on your core, if canceled prior you must provide a return shipping label to receive your core back.  In order to cancel any order the customer must call and speak to a BNR Supercars representative about cancelation and a refund. We apologize for any inconvenience.  If you have any question about choosing the correct turbocharger for your application, please call to consult!

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BNR Warranty Policy

BNR Supercars LLC has a limited (12 month warranty from invoice date) with every turbocharger we build. BNR Supercars guarantees its products will be free of defects in workmanship and materials upon delivery. The warranty only covers turbocharger parts, if defective, and does not cover damage due to abuse, misuse, or neglect. BNR Supercars does not cover products if not utilized in accordance with BNR Supercars intended purpose nor incorrect installation of said products. BNR Supercars LLC is not responsible for labor for removal of turbocharger or the postage of turbocharger(s) to or from the purchaser.   The warranty does not cover:

  • Oil Contamination
  • Oil Starvation
  • Over-speeding
  • Foreign object failure

     

    Oil starvation (non-warranty)

    When we pull apart turbocharger and thrust/shaft are discolored showing signs of friction or metal swap.  That is an indication of oil starvation.  Here are a few pics of turbochargers that didn’t get enough oil volume and died a miserable death.

    IMG_7261IMG_7265

    IMG_7270

     

    Oil Contamination (non-warranty)

    Signs of oil contamination are present in the journal bearings and thrust bearing assembly.  When contamination occurs, target boosts will be possibly be lower and the turbocharger could push oil past the turbine seal causing smoke out the tail pipe.  If your lucky just a minor overhaul will be needed.  I will suggest you to do a leak down to your engine for possible ring land failure and I will tell you to install an inline oil filter to filter the oil before it gets to the turbocharger.  Doesn’t take much trash in the oil to damage bearing bronze to the point the turbocharger needs servicing.

     

    IMG_7262IMG_7264

    Over-speeding (non-warranty)

    Over-speeding looks similar to oil starvation.  The journal bearings usually aren’t effected by over-speeding.  The first sign of over-speeding is the thrust bearing burns up like its starved for oil.  It will eventually take out the journal bearings and the rest of the CHRA (center housing rotating assembly) if the problem isn’t caught in time.  You will start to have excessive in and out movement!  Over-speeding is typically caused by:

    • Blown intercooler coupler
    • Bad blow off/bypass valve  (not enough spring tension)
    • Improperly set up sequential system (if sequential twin turbo-rx7/supra)
    • Improperly sized turbocharger (too small for engine)

       

      IMG_7263

      Foreign object failure (non-warranty)

      Foreign object failure is something like a nut or bolt that’s loose in your intake system.  Happens quite often.  Original turbo that came off was missing a shaft nut.  You better find it because eventually it will be consumed by the new turbocharger!  The exhaust side of the turbocharger can also be affected.  Broken apex seals or broken valves or even welding slag from custom turbo manifolds can cause foreign object damage!  You buy a manifold, you better check it for loose welding slag!

       IMG_7268IMG_7269

       

      If you happen to have issues with your turbocharger (smoking, grinding ect), we have to disassemble to see the cause of premature turbocharger failure before we jump to any conclusions.  From there we can determine if there is a problem with the turbocharger or if an internal problem exists with your engine.

      Thank you and we appreciate your business!

      If you need to file a claim please do so here -

       Warranty Claim Form

      SHIPPING INSTRUCTIONS - Please remove oil and water lines from the turbocharger(s) to reduce damages during shipment. When boxing, DO NOT using packing pea nuts, shredded paper, or bubble wrap, the weight and sharp ends of the turbocharger pops bubbles and breaks pea nuts causing the turbo to shift around and break through the box before it gets to us. Use newspaper and pack the turbo tightly. A double wall box is best suited for the weight! The flat rate boxes, are NOT rated for the weight of a turbocharger. If the turbocharger gets damaged (broken studs, bent actuators ect.) there will be extra charges for replacements/labor! 

      MAIL CORE TO:

      BNR Turbos
      393 Coupland Rd
      Odenville, AL 35120