Originally posted by EJ6 Civic
new cars already have really free flowing cats. It would be a complete waste of money to get a racing cat. The amount of horsepower a racing cat will add wont be very noticable. Why not just spend the money on mods that will get you better gains? If you want hp, build your engine. Don't waste time with stupid bolt ons.
actually it made a big difference in my low end and even more from 5500 rpms to 8200 rpms. you feel vtec engage alot more. i now run close to 14.9 and i havent even installed my intake manifold or 4-1 header. so from my experience i noticed a differenc on my car. im sure he will if he gets one.