034Motorsport JE Forged Piston Set, 9.5:1, Audi B8 S4/S5/SQ5 & A6/A7/A8/Q5/Q7 3.0T
JE forged piston upgrade set for the Audi EA837 3.0T supercharged V6, lowering compression for safer timing advance under boost.
Features
- Set of six JE forged pistons in 2618 aluminium alloy with integrated piston rings and heavy-duty wrist pins
- Compression ratio 9.5:1 (down from 10.3:1 stock), per 034
- 84.5mm (3.327in) bore, Euro dish piston face
Fitment
- Audi S4 B8/B8.5 3.0 TFSI (2010-2017)
- Audi S5 B8.5 3.0 TFSI (2013-2017)
- Audi SQ5 B8/B8.5 3.0 TFSI (2012-2017)
- Audi A6 C7/C7.5 3.0 TFSI (2012-2018)
- Audi A7 C7/C7.5 3.0 TFSI (2012-2018)
- Audi A8 D4 3.0 TFSI (2011-2018)
- Audi Q5 B8/B8.5 3.0 TFSI (2009-2017)
- Audi Q7 4M 3.0 TFSI (2015-2021)
Included
- Set of 6 JE forged pistons with integrated rings
- Heavy-duty wrist pins
Notes
Lower compression allows more timing advance with less detonation risk. Pistons are louder than the factory items on cold start, per 034. 034 recommends pairing with Pauter connecting rods. Requires a supporting tune/calibration. Check your engine code before ordering.
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at info@jbmperformance.co.uk. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at info@jbmperformance.co.uk.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods, custom products (such as special orders or personalised items). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. Please note that the customer is responsible for ensuring the correct part is ordered and fits the vehicle it purchased for.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please note the Exceptions / non-returnable items section, which states there are no returns for perishable goods, custom products (such as special orders or personalised items). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please remember it can take some time for your bank or credit card company to process and post the refund too. Some refunds may incur an admin/restocking fee.