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  1. Invidia N1 and Q300 Exhausts for 2012 Civic Si Now Available!

    Bolt-Ons and All-Motor
    Invidia has just released two new exhausts for the 2012 Civic Si Sedan and Coupe. Both look amazing IMO. The Invidia Q300 Exhaust is designed for customers who want a "mild" street exhaust, with a deep sporty tone that isn't too loud. Amazingly though, the Q300 still produces great power gains...
  2. Invidia Q300/N1 Civic Si Exhaust Thread

    Exhausts and Downpipes
    This thread is dedicated to Invidia exhaust systems for the 9th Generation Civic Si. Please keep information/questions about this particular brand of exhaust system limited to this thread to avoid confusion on the forums and to keep it neat and tidy. Q300 Exhaust: Specs: Large...
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