I've just finished cleaning my injectors and will be putting a dab of silicone spray on my new O rings when I put them back..

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Present:
01 X5 4.4i
07 Yam R1

Past:
89 R32 Skyline various mods, running 442 BHP
00 Merc CLK55 AMG
01 E39 M5 Haywood and Scott silencers
02 E46 M3 Supersprint Cats, Eibach Lowered, Thorney Motorsport Remap, running 368 BHP