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PST Carbon Fiber Driveshaft ( Part Number:PST IZS-1559) PST Carbon Fiber Driveshaft ( Part Number:PST IZS-1559)

PST Carbon Fiber Driveshaft - Subaru STI 2015+

MODEL # PST IZS-1559
Manufacturer Part # IZS-1559

$1,071.43

24
hours
In stock! Ships same day
Qualifies for free shipping!


Description

The finest driveshaft available anywhere. Each driveshaft is specifically designed by PST's Engineering Department to optimize the characteristics of Carbon Fiber required in your special application.

By replacing the stock steel driveshaft with a light weight carbon unit, rotational mass is removed from the drivetrain allowing more energy to be spent rotating the tires instead of the stock heavy driveshaft. This increases throttle response, performance, acceleration, and braking.
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RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.

Specifications


Brand: PST
Material: Carbon Fiber
Weight: 14.4lbs

Mfgr. Warranty: 1 Year
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
RallySport Guarantee

4.8

5 STAR
83%
4 STAR
17%
3 STAR
2 STAR
1 STAR

Carbon drive shaft
U2slo1193097599 12 months ago
The best modification for your car is the carbon driveshaft.The jolting in the drivetrain from the stock 2 piece steel shaft is terrible. The shifting transition as well is better,I feel the car acelleration now is more connected with the one piece shaft, the rotating mass loss is also an extra bonus to.Install is a breeze, just be careful when inserting the shaft into trans housing respect the seal there.

Comment

Excellent Product, Couple Install Notes
Greg B 1 year ago
The "install video" here is inadequate. The process is straightforward, but there's more too it than what's in the video. It took me 90mins with hand tools. 1. Safely jack car up on stands or ramps, all four corners will make life easier. 2. Get working on the six bolts holding your mufflers to the midpipe, leave the last one barely on. Remove the hanger from the rubber bumper. 3. Loosen the two bolts on the forward end of the midpipe at the cat, be nice to your donut gasket, and drop midpipe to floor, remove last bold on muffler side. 4. Get to work on the four heatshield bolts. They're easy but the O2 sensor wire goes though it. I made a small cut the the heatshield instead of taking the sensor out. 5. Loosen and remove the four bolts on the rear diff side of the driveshaft, and have something to rest that end on, as the shaft won't flex enough at the midjoint to touch the floor. Move on to the two large bolts at that mid joint and get ready to hold 30+lbs . Supporting the whole driveshaft, pull it out of the transmission, some fluid will leak. 6. Before reversing this process, put some grease or something in the spline of the new one. The four bolts you're reusing? Those heads are round with one flat side, to rest against a flat edge of the old knuckle. That doesn't work on the new one, you'll need an open ended wrench to hold them from spinning, while you tighten the nut. If you are re-using those crush washers, add some loctite and let it cure 24 hours. When you install the new shaft, you'll have to line it up on the spline, so that all four holes on the rear diff match. Or if e-brake is off, maybe just turn it. 7. Re-install heatshield, re-attach midpipe. You're done.

Comment

PST CF DS
Kyle F. 1 year ago
Had mine done yesterday at Cobb. Less arguing with the clutch leaving 1st and id agree with others the car revs better through the gears. No improvement on NVH unless your old shaft was loose/carrier bushings shot. PST makes other shafts for other cars with $125 forged aluminum yolk upgrades and these scoob shafts only come in steel yolk, didnt see an aluminum upgrade on PST site to get weigh down to 12lb(??) Im assuming they have a pricing deal worked out through RSD w the steel yolks. YT 'boostaholics PST GC8' that vid he visits PST shop in Clearwatee and you can see our shafts with shiney yolks like the DSS but they spray em all black before shipping. Ive read rumor on forum DSS supplies them w the CF bores but that may be wrong? No buyers remorse except the wife found out and shes pissed lol.
Comment

Love this driveshaft
Rick C. 1 year ago
Such an underrated modification. Smooths out drivetrain noise and harshness, allows for better launches, and reduces weight. There are very few mods with no downsides, but this is one of them. Highly recommended.
Comment

An absolute must have
bamlong367632 1 year ago
This drive shaft completely changed the way my car accelerates throughout the entire set of gears. It is nothing short of amazing how much smother my 2015 STI is now that I am running this driveshaft. Install is seamless and took me right at an hour with just a jack and jack stands.
Comment

  • Q: Carbon Fiber Driveshaft  tonytony 7 days ago

    Answer

    Does the PST Carbon Fiber Driveshaft fit JDM version of STI (model: VAB, EJ20)? thanks


    • A: We cannot confirm these to fit anything other than USDM models. However, we can have PST make you a custom one. Please contact [email protected] for more info.


      Tyler A. 7 days ago
  • Q: Driveshaft   Mitchell 1 year ago

    Answer

    Is it safe to launch your car with this shaft ?


    • A: Launching your car is never considered safe, however this driveshaft is designed to a huge amount of power compared to stock.


      Jared A. 1 year ago
  • Q: PST carbon fiber driveshaft for sti  donaldrey684609 1 year ago

    Answer

    How much horsepower will this carbon fiber driveshaft handle? Car has 516hp right now but planning on getting around 600-650hp soon


    • A: This driveshaft should be able to handle over 600+HP.


      Josh P. 1 year ago
  • Q: Will this fit a 2015 STi limited?  edekeratry55795 2 years ago

    Answer

    I am wondering why the limited isnt listed for fitment. Is there something substantially different that I dont know about that would cause this to not fit a 2015 STi limited?


    • A: This will fit 2015 STI Limited models.


      Brady R 2 years ago
  • Q: PST carbon fiber driveshaft   sti2015 2 years ago

    Answer

    It has been suggested that the combination of a light weight pulley and light weight flywheel might trip a CEL. Will the PST driveshaft result in a CEL as well since rotational mass has been dramatically decreased? '15 STI


    • A: A lightweight driveshaft will not turn the CEL on.


      Zach G. 2 years ago