38mm Alloy Tube - 1 Metre Length Audi > TT > Mk1 (1998-2006) > 1.8T 210/225BHP This valve uses a Brass

This valve uses a Brass piston which utilises new sealing technology along with a variable spring preload incorporating a ratchet type top adjuster that will allow for the positive and precise adjustment to match the valve to your engine

For those running higher boost pressures after software tuning this really is a must to ensure that you do not lose boost through the valve

Powerflex Rear Diff Front Mounting Bush

Zero brake fade makes this material perfect for fastest driving

and also fitting the Fiat 595 and Fiat 695

38mm Alloy Tube - 1 Metre Length Audi > TT > Mk1 (1998-2006) > 1.8T 210/225BHP This valve uses a Brass38mm Alloy Tubes Technical Details Outside diameter 38mm Essential to racecar and kitcar builders, and those installing their own intercooler conversions. Straight 1 metre lengths of aluminium alloy tube in a range of popular sizes. The tube is cut to 1 metre length, ends de burred, but otherwise in its "raw" state. Not polished or swaged. All tube is 16gauge, equivalent to 1. 5mm wall thickness. Grade is HE9. Drawing for reference only.