map-marker Horicon, Wisconsin

Worst products ever

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"Motorsports" is used in the title of this company. However they are a far cry from anything motorsports. A lot of snake oil products. The company focus seems to be ebay, baiting people with 928 porsches to buy junk parts that don't fit and are poorly made at best. From control arm rebuild kits, to supercharger rebuilds, all failing prematurely because they lack any knowledge or equipment to service properly. don't send a supercharger to 928motorsports to be rebuilt as they lack any real equipment to balance ore machine internal parts properly. send your kompressors and related parts to a supercharger rebuilder who ones the proper equipment to rebuild them properly and avoid the pitfalls of amateur supercharger rebuilds that typically damage the motor when they fail
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  • Dealing with the owner carl
Reason of review:
Damaged or defective

Preferred solution: Full refund


I have nothing but great things to say about 928 Motorsports. That is why i continue to come back and repeat business.

I have ordered multiple pulleys, rebuild kits, had them also do a high performance rebuild, bought their billet impeller etc. is great. They have been very helpful.

I have a tidalwave kit for my challenger 3.5. anyway, thanks again!

Chayden Ypn
reply icon Replying to comment of Guest-1637638

This persons review has no particulars or specific details. A legit complaint usually will say "I bought a XYZ on (date) and this happened" However, this person offers no specifics.

It makes no sense given that we have more than 3,200 transactions on eBay with a 100% feedback rating, and an average 4-star review after more than a thousand transactions on AMAZON, that ALL of our parts are bad as this person suggests. Posts like this one that lack substantive details and are this over-broad with their claims are unfortunately becoming popular by unscrupulous merchants that are only doing it to discredit their competitor.

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Company does not stand by thier parts or warranty.

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I purchased the upgraded ceramic bearing and belt kit for my Powerdyne Supercharger from 928 Motorsports and the bearing failed after only 3,000 miles. When I inquired about it Carl told me to send the supercharger into him and he will look at it. I am not willing to do that. I'm not spending money to have him look at it when I can do it myself. I told him I could take pictures and send in the failed part. I asked about the parts warranty and Carl said they do not warrant parts that are shipped out and installed by someone else. The warranty info on his site doesn't say that. Warranty only covers what he installs. BUYER BEWARE if you buy a part from 928 Motorsports and install it yourself there appears to be NO WARRANTY.
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  • Product quality
Reason of review:
Bad quality

They have really good feedback ratings on both Amazon and eBay. I wouldn’t think that they would if what you are saying was true.


Absolutely horrible customer service. Lazy machine work, poor workmanship, lack of attention to detail, you name it!

Every quality you do not want around your engine. STAY AWAY.

Better people to give your money to. - another pissed consumer


I think it speaks well of them that they offered to go though it for you even though you installed the bearings yourself. Nobody else would do that. Check that you are not over-clocking the unit, that's usually what ruins bearings in a Powerdyne.

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