Supertech Titanium Retainer - BMW | S54 (Triple Groove)These performance retainers set at the top of the spring and used as a upgraded retainer in Titanium metal. Note: Priced Individually. Always confirm proper engine and vehicle compatibility.

3 x Alternative Vacuum Ports

Stop Quicker

which increases displacement to 2008cc and allows you to bore and hone the block to the exact specifications required to ensure best results

TRANSFORM YOUR 2

8 (E65) 2005 thru 2009BMW 750 4

FITS: All B6/B7 Audi A4 Avant Quattro

Inside Diameter: 60mm ID Length: 100mm Spring Rate: 650 N/mm or 3711 lbs/inch

Does not affect or alter any emissions devices

technical data

FT-410: 410 hp - 420 ft/lbs - 16psi

(2) Firestone 9000 sleeve bags

and are only recommended for those who like it loud