disc-brake-packages

StopTech - Street Pack - Drilled - Single Axle Rear (939.45515)

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This part fits

  1. 2013 Mazda 3 2.3L L4 cc:2260
  2. 2013 Mazda 3 2.5L L4 cid:152 cc:2489
  3. 2013 Mazda 3 2.5L L4 cid:152 cc:2488
  4. 2012 Mazda 3 2.3L L4 cc:2260
  5. 2012 Mazda 3 2.5L L4 cid:152 cc:2488
  6. 2012 Mazda 3 2.5L L4 cid:152 cc:2489
  7. 2011 Mazda 3 2.3L L4 cc:2260
  8. 2011 Mazda 3 2.5L L4 cid:152 cc:2488
  9. 2011 Mazda 3 2.5L L4 cid:152 cc:2489
  10. 2010 Mazda 3 2.5L L4 cid:152 cc:2489
  11. 2010 Mazda 3 2.3L L4 cc:2260
  12. 2010 Mazda 3 2.5L L4 cid:152 cc:2488
  13. 2009 Mazda 3 Mazdaspeed 2.3L L4 cc:2260
  14. 2009 Mazda 3 S 2.3L L4 cc:2260
  15. 2008 Mazda 3 Mazdaspeed 2.3L L4 cc:2260
  16. 2008 Mazda 3 S 2.3L L4 cc:2260
  17. 2007 Mazda 3 2.3L L4 cc:2260
  18. 2006 Mazda 3 2.3L L4 cc:2260
  19. 2005 Mazda 3 2.3L L4 cc:2260
  20. 2004 Mazda 3 2.3L L4 cc:2260
  21. show all...
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About this product

Part #: 939.45515

The best of both worlds, these StopTech Street Axle Packs feature cross-drilled StopTech Sport Rotors and StopTech Street pads for significantly improved performance with low dust and noise.

More Details

See what our community says about stoptech products

product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Price and performance
Is this your first time buying from this brand? Did you consider other brands?
Yes
Was it easy to install? Any installation tips that will help others?
Yes
Once you've had a chance to use the product, did it meet your expectations?
yes
Any additional comments?
No
View on Charles's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Reviews.
Is this your first time buying from this brand? Did you consider other brands?
Yes. Brembos.
View on Steve's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Quality and weight.
Is this your first time buying from this brand? Did you consider other brands?
Yes.
Was it easy to install? Any installation tips that will help others?
Very easy install
View on Jeremy's build
Mathieu Perron

646

Mathieu Perron
2009 Subaru Legacy
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Awesome pedal feel
View on Mathieu's build
Tim Lydon

632

Tim Lydon
1999 BMW M
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
This part was installed on my 1998 BMW M3 when I purchased the car. They work pretty good and can handle the hard use required for track days.
Is this your first time buying from this brand? Did you consider other brands?
I considered Brembo brakes, but I already had the StopTech BBK, so it was a no brainer to just clean them up and re-use them.
Was it easy to install? Any installation tips that will help others?
Installation was pretty straightforward. I mean if you can install a regular set of brakes, you should have no issues installation these. I would say that you should be aware of possible fitment issues with your wheels. These calipers are much larger than stock calipers and may not fit with OEM wheels (my OEM M3 wheels did not fit with these brakes). Even aftermarket wheels might require spacers.
Once you've had a chance to use the product, did it meet your expectations?
Good brakes, but rotors are pricey. Replacement rotors cost about $700 a pair, or $1,100 if you order them with a new set of rotor hats.
Any additional comments?
One other issue, I noticed galling on the M12 bolts that hold the StopTech carrier to the wheel hub. I ordered an M12 x 1.5 TimeSert kit to repair the threads in the aluminum carriers. It seems to me that StopTech should have manufactured an aluminum carrier with thread inserts, out-of-the-box, to avoid this issue.
View on Tim's build
California prop 65 warningWARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

*Some manufacturer restrictions apply.

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