NOTE: Unlike other light-weight valve spring sets with titanium-retainers, these are the only kits with "beehive-type spring design" instead of a straight-spring design (like 034 Motorsports) meaning, there is less "sprung-weight" at the titanium-retainer-end of the spring, compared to all the other kits that have "straight-springs" instead of a "beehive design." Beehive-type spring design reduces probability of valve-float at high rpm more than straight-spring designs, because the beehive design reduces spring and retainer mass/weight at the top of the spring where the spring experiences the "greatest range-of-motion" and therefore the greatest effective weight (functionally) 'attempting to float the valve.'

NEW: Set of 24-each, APR, VALVE SPRINGS/SEATS/TITANIUM-RETAINERS.

APR Part #: MS100090.

[FROM THE MANUFACTURERS WEBSITE:]

Fits 2007-2017 Audi A6, A7, A8, Q5, Q7, S4, S5, Volkswagen R32, etc.

OVERVIEW

The APR Valve Spring System is a high performance, lightweight upgrade designed to increase valve control and eradicate valve float common on many applications. APR's design specifications called for a valve spring, retainer and spring seat combination that doesn't overpower and snap the OEM valves or erode the aluminum spring seat, while still maintaining exceptional valve control. The result is an advanced design that's 28% lighter yet 20% stiffer than the high performance OEM EA113.K04 (MK6 R) setup and is proven to eliminate the OEM valve train's weakest link.

Features:

Increase valvetrain control.

71% weight reduction over 2.0T EA113.K04 retainers (MK6 R).

19% weight reduction over 2.0T EA113.K04 springs (MK6 R).

20% stiffness increase over 2.0T EA113.K04 Springs (MK6 R).

Eradicates valve float issues (MK6 EA888.1).

Supports higher revving application.

Weight saving beehive spring design

ASTM A877A OTSC round wire steel springs.

6AL4V American titanium retainers.

4140 heat-treated chrome molly steel spring seats with black oxide coating.

29 grams per spring.

2 grams per retainer.

Compatible with OEM valves

Spring seats included to protects against aluminum erosion in the head.

Plug and Play.

[END MANUFACTURER'S WEBSITE INFO]

The manufacturer (APR) now sells these spring/retainer/seat sets as individual sets and no longer sells them as a set of 24. This is a set of 24-each, of the same springs, retainers and titanium-seats as you would receive if you purchased 24-individual APR Spring/retainer/seat-sets part number MS10028 priced at $51.20 each, which would cost you $1,228.80 if you purchase 24 of them as this kit contains. By purchasing this NEW set of 24 valve springs/titanium-retainers/seats, instead of purchasing them individually on the APR website, you are saving $242.80.

WARNING: This item is not returnable. Therefor, please go to the APR (goapr . com) website and verify this fits your vehicle.

Accomplished by entering your vehicle information, then click on "engine hardware" then at the top of the page click on "engine internals" and make sure you see the part number MS100258 as available for your vehicle. PLEASE NOTE: that, on the APR website, they are now ONLY for sale only as an individual spring, titanium retainer and seat set (1-each) and no longer for sale as a "set of 24" in one-box as this purchase represents. So, to check fitment on the APR website you will need to use the part number for "APR VALVE SPRING KIT (1-SET)" part number MS100258 (only to verify fitment). But again, the price in this listing purchases 24-each of these items (six-cylinder engine) p/n MS100090 which is the set of 24. You can also use the "CONTACT" link on their website to email them or call them by phone to verify fitment.

These items were only taken out of the box to take the pictures found in this listing. The items remain in the original APR sealed-plastic containment just as seen in the pictures. This listing's pictures are of the precise items you will receive when purchasing.

My feedback-rating is 100% as evidence that I am a seller of honesty and integrity.

NO PRICE REDUCTION AVAILABLE: Out of respect for your time, please understand that there will be no reduction in price.

The price in this listing includes shipping to the 48 contiguous United States of America only. Shipping elsewhere shall be at an additional cost to you calculated by the ebay system.

Please contact me with any questions or comments, other than pricing reduction.

Thank you for your consideration.