RW Carbon here as well... I am also working on a budget as you are and I've tried several products and thus far RW Carbon has had the best quality and finish out of them all.
I have their front lip and spoiler.
I did have to use bigger washers on the front instead of the stock washers. Held it in better.
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*** SOLD *** 2013 BMW M5 | Space Grey | MSR Stage 3 Tune | Catless Downpipes | MSR Intake and Charge Pipes | MSR Exhaust (Prototype) | Vorsteiner Rear Diffuser | RW Carbon Front Lip | RW Carbon Trunk Spoiler| Vorsteiner VS-310 Forged Wheels | Escort 9500CI w/Laser Jammers
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