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2.5 TFSI Audi RS3 & TTRS stud bolt cylinder head ARP
Product number:
21rs301
Manufacturer:
ARP
ARP quality
- High Boost
- Extremely stable
- 30% harder stretch steel
- 100 % reusable
Worldwide shipping
Shop safely
Certified Online Shop
Made for High-Boost
Pay in advance
Quick Links
Authorized Dealer

We are proud to be an Authorized Dealer
What does that mean for you?
We have been working for many years with the leading manufacturers in motorsport, who have placed their trust in us and chosen us as their authorized dealer. Thanks to these strong partners and our mission to constantly raise our standards, we can not only ensure the best quality and conditions for our customers, but also have grown to become the largest online store for motorsport and tuning parts in Europe.
- Description
- ARP is the market leader in this field.
- The stud bolt are made of 8740 chromoly steel and have rounded threads.
- Up to 30 % stronger expansion steel than standard bolts.
- 100 % reusable.
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Description
ARP stud bolt kit cylinder head for all 2.5L TFSI engines as installed in the Audi TTRS and Audi RS3.
A MUST for all engines that run with increased boost pressure!
Now also available as BAR-TEK® High-Boost version!
Recommended from 2 bar boost pressure.
The ARP kit contains 12 stud bolt with matching nuts and ARP Moly Paste.
Tightening torque in three stages. Last stage 115 Nm.
The stud bolt require a 12mm internal variety nut. The High Boost version 16mm.
Manufacturer
Information about the manufacturer
ARP
Automotive Racing Products, Inc.
1863 Eastman Avenue, Ventura, CA 93003, United States
https://arp-bolts.com/p/contact.php
EU responsible person
BAR-TEK Motorsport GmbH
Im Rauschen Auel 3, 51491 Overath-Brombach, Germany
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Fits for
A3 / S3 / RS3 | 8P, 8PA | Year built 2003-2013
1 Engines
Engine | Engine code |
---|---|
2.5 TFSI (EA855) | CEPA | 340 hp (250 kW) |
A3 / S3 / RS3 | 8V | Year built 2012-2020
1 Engines
Engine | Engine code |
---|---|
2.5 TFSI (EA855) | CZGB | 367 hp (270 kW) |
Q3 / RS Q3 | 8U | Year built 2011-2018
3 Engines
Engine | Engine code |
---|---|
2.5 TFSI (EA855) | CTSA | 310 hp (228 kW) |
2.5 TFSI (EA855) | CZGA | 340 hp (250 kW) |
2.5 TFSI (EA855) | CZGB | 367 hp (270 kW) |
TT / TTS / TT RS | 8J | Year built 2006-2014
2 Engines
Engine | Engine code |
---|---|
2.5 TFSI (EA855) | CEPA | 340 hp (250 kW) |
2.5 TFSI (EA855) | CEPB | 360 hp (265 kW) |
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