Review: Invidia High Flow Cats
The studs are actually installed on the stock cats. so when you remove the stock cats just bolt up the Invidia HFC's using the provided hardware. You don't have to remove the stock studs from the cats since you won't be using them.
hahahahaha thats whats i did too when i had my test pipes installed lol
$475 shipped from Amplified.
So far I have over 1,200miles on these and no CEL. The sound level has definitely become much quieter (it was pretty loud at first). Drone is exactly the same as before. There is no rasp at all now. The usual HFC/test pipe "hiss" is of course there. Power is definitely noticeable more than the intake or cat back. It just pulls harder at higher RPMs and even more so when you shift. I love it
So far I have over 1,200miles on these and no CEL. The sound level has definitely become much quieter (it was pretty loud at first). Drone is exactly the same as before. There is no rasp at all now. The usual HFC/test pipe "hiss" is of course there. Power is definitely noticeable more than the intake or cat back. It just pulls harder at higher RPMs and even more so when you shift. I love it



