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Kraftwerks 159-99-903C Supercharger Pulley Upgrade 90mm x 30mm

Manufacturer

Picture for manufacturer Kraftwerks

Part Number

159-99-903C
13 reviews
Sale Price

$136.67

Estimated ship date Saturday, November 28

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Product Details

The Kraftwerks 159-99-903C is a 90mm x 30mm supercharger pulley upgrade designed to enhance BRZ, FRS, FT 86, and AP1 S2000 supercharger kits. This performance upgrade increases low end torque and horsepower by allowing the supercharger to reach maximum speed sooner.

Key Features:

  • 90mm (3.543 inch) outside diameter pulley with anodized aluminum/steel construction
  • Ideal for applications that don't require high RPM operation but still demand maximum supercharger performance
  • Provides approximately +3 PSI boost increase from base kit configuration
  • Compatible with original belt, though replacement is recommended for preventative maintenance

This smaller 90mm pulley creates a more aggressive pulley ratio that spins the supercharger faster at lower engine speeds, delivering enhanced boost and power output throughout the powerband. The precision-machined construction ensures proper belt alignment and reliable performance under demanding conditions.

EASY SITE TO USE

So far so good

great God Bless

What I thought would be a nice and easy purchase didn't quite turn out that way. I ordered the Holley fuel pump module for my 1999 Chevy Suburban K1500, because I wanted an upgrade from OEM to take advantage of the mods I have done to my truck. Autoplicity was the only vendor that offered a cost effective shipping upgrade: $60.98 for Next Day Air UPS, plus they showed the item in stock in their warehouse. The next day, I received an email confirming my order, but never reflected the item being shipped. I called customer service later in the day, but was told that the warehouse was already closed and that I could expect a shipping confirmation email the next day, which would have been Thursday. I had originally ordered the pump on Tuesday night and had my truck towed to my garage Wednesday late morning. I had alerted the shop that I had ordered the part and expected it Thursday, so they could install it and get my truck back by close of business Friday. It wasn't until late Thursday morning, when I once again had to call Autoplicity customer service, that I learned that the warehouse had made a mistake and sent the pump UPS Ground with the tracking showing delivery by Friday end of day. I finally received the pump around 1 PM Friday, and was luckily able to deliver it to my shop and have the install done that afternoon. I am giving 4 stars because the end result was that I got my truck back Friday evening, waiting for the Holley pump was the right decision in terms of vehicle performance, and Autoplicity refunded me my $60.98 for expedited shipping. I will consider them in the future for my auto parts needs.

always a smooth transaction at a good price

No hotchkis rear 2" lowering springs available

to good to be true

great price and free shipping!

Good

So far so good

Don't know if it accepted the coupon code but shopping was easy.

Great price,quick and easy process.

best price i can find. shipping scheduled only 4days after i order. haven't received it but looks fast.

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