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  1. ew12j4s power increase?

    407
    hi i have a Peugeot 407 coupe 2.2 petrol and i am wondering how to get more power out of it? i looked at the turbo route but thats too expensive. i have considered a 50 shot of NOS and a air filter and stainless exhaust with a vegaz manifold? any ideas would be helpfull
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