QR25 Head Upgrade
Upgrading the head of your QR25 is necessary to allow the engine to achieve your power goals. Parts like valves, valve springs, camshafts, retainers, and seals aren't built from the factory to handle the increased stress of turbocharging. Treadstone builds each head with precision and care to make sure that your head leaves our performance facility ready to make the power that you're looking for.
Stage 1: We upgrade your camshafts with JWT Camshafts and Valve Springs
Stage 2: Includes the Stage 1 kit and we add upgraded valves, valve locks, and valve retainers. We also gasket-match the intake and exhaust port.
Stage 3: Includes the Stage 1 and Stage 2 kit and we add 1mm oversize valves and polish the combustion chamber.
Buy First Hand
We are the main German distributor for TRE / Treadstone Performance with exclusive sales rights for Germany, Austria and Switzerland. Any Parts made by Treadstone Performance can only be sold in these countries either by us or by our dealers. Buy your products first hand and benefit from our excellent support and consultation. Furthermore the short supply chain ensures a quick repair or replacement if needed. As the German distributor we guarantee you, that the product is functioning correctly. In the unlikely case of a malfunction, we send out a free replacement. Malfunctions that are resulting from misuse, improper use, negligence, unauthorized alteration or repair will not be compensated.
We only sell 100 % original products. Buying from us means, you always buy the latest version. No refurbished products and no knock offs that look deceptively like the real product.
- Item weight: 5,00 kg
With subscribing into our free newslerrs you will receive a 10€ voucher for your next order. The newsletters are a selection of technical informations, news about new products and special promotions. You can unsubscribe for free at any time.