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when i had my FI exhaust, my car used to vibrate at high gears in low RPM..
like 5th gear on 2k rpm..
Not really, nothing that I can think of atleast. Sometimes if I hit a certain RPM it will make some things rattle, but its not constant. That can all be car dependent though.
Originally Posted by JoshLee89
did you have drone before when you just had axle back?
Can you compare "just axle back" vs. "Full Catback"
Drones, sound tone, loudness etc.
The axle back had very minimal drone IMO. Then I added HFC and it got quite a bit louder and the drone on the highway didn't change much expect of course when you put your foot in it. The mid pipe and y pipe just made everything a little deeper and probably had the biggest effect at idle and lower RPM.
This setup sounds great. Makes me rethink my whole exhaust plan. I'm just really concerned about drone. I had Borla S Catback exhaust on my last car (07 Jeep SRT8) and the drone was annoying after a while.