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  1. N1 3” exhaust - used - good condition

    For Sale Section
    Hey what’s up. I’m fairly new to forum and from Ft Worth. Letting go of previous 3” exhaust 12-15 si (from my 13 si sedan) inspected by Honda dealership and said it is in good condition but needs a new exhaust gasket (the one that connects exhaust to DP) (it’s a $10 part lol) I just got a...
  2. 2012 Si Invidia N1 w/catless downpipe

    Exhausts and Downpipes
    After this winter I will have my exhaust work done, but I don't know what noise to expect. I have a 3 inch catless dowpipe and a full Invidia N1 exhaust. How loud will it be? Will it smell? Will my gas mileage go down? Power gain after a tune? Will it spit flames?:d Thanks for your help...
  3. Invidia N1 Cat Back -- Honest Review

    Exhausts and Downpipes
    I installed my Invidia N1 about a week ago so I'm writing up a review for anyone whose in the market for a cat back exhaust system like I was a week ago lol. (I know there are numerous threads about this exhaust already including one that's hundreds of pages long) I ordered the exhaust from...
  4. Best exhaust for 2013 Si (not loud or quiet)

    Si Only
    Hello, I'm new to the forms, just got a brand new 2013 FG4 in June, hasn't had its first oil change yet. The first mod I would like to do is upgrade my exhaust. I know there are numerous threads about exhausts witch I have read and would just like a opinion, so please keep the "use the search...
  5. Too Many Exhaust Choices

    Exhausts and Downpipes
    Hey guys, I picked up my 2014 Civic Si about a week ago and I'm already planning my first couple of bolt ons. The first thing I want to get for my Si is an exhaust after I complete my break in miles of course. But I seem to have a problem.. my old car was a Toyota Matrix with a generic N1...
  6. Invidia Q300 exhaust specials!! Lowest price and free shipping!

    We are having a big sale on all Invidia Q300 exhausts! Free shipping within the continental US! To order: Order on website, PM us to order with paypal or call us to order with a credit or debit card. We accept Paypal, American Express, Mastercard, Visa and Discover. 877-738-9672...
  7. Exhaust systems. Best deals!

    We carry almost every major brand out there! We will beat anyone elses pricing on anything we carry! Got a quote already? Let us beat it! You can view all parts on our website here. Moddiction - Homepage For best pricing on any part PM, Email or Call us for special forum pricing!
  8. Help with chosing exhaust

    Exhausts and Downpipes
    So i just got a 2013 Civic Si Sedan and im stuck on what exhaust to get. i want an daily driver exhaust were it has great performance but not too loud. i really like the look of the Invidia N1 Cat back exhaust but worried it be to loud but heard you can put a silencer on it. The Q300 was another...
  9. 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...
  10. 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...
  11. Invidia Q300 70mm Catback Exhaust Systems / In Stock Now / $549 Shipped

    Import DPS
    We just got in our first huge batch of the newly released Invidia Q300 Catback Exhaust System for the 2012+ Civic Si. These systems feature all stainless piping, a super clean sound that won't get your neighbors mad, 70mm piping and a very nice look while giving you extra power. We are an...
  12. Invidia Q300 / N1 / Header Sneak Peak by Import DPS!!

    Vendor Showcase!!!
    We wanted to be the first to give you a sneak peak at some of the new Invidia products that are coming for the 2012 Civic Si. We are expecting a couple skids of exhaust systems in 2 weeks. The Header / Test Pipe will be in early in the new Year! Pricing is not set yet for the header. Exhaust...
  13. The generic What Exhaust System thread

    Downpipes and Exhausts
    yea yea i know its not out yet, but i felt like asking and getting this off my head lol......what brands have good exhaust systems that i may want to look into once the 9th gen civic comes out and their product comes out for it? a friend told me magnaflow was good, and i dont want any ricer...
  14. help me pick an exhaust or downpipe

    Bolt-Ons and All-Motor
    im already planning for my mods to the car even before i get it. but since im probably going to be putting nitrous on it im thinking of changing the headers at the same time. is it worth that extra money to get some nice 4-2-1 headers?