whats the loudest cat back system out there for the is300. I had a straight piped mustang and im looking for a loud exhaust for my IS. i noticed a lot of the systems have a muffler at the end and a little resonator half way back(dont like). do they all have this?

 

If you're looking for a mustang sound on an IS300, you bought the wrong car. GReddy seems to be 1 of the loudest.

 

^get that, a y pipe and resonator delete

much louder

 

Mazzuri headers, y-pipe (if you can find used sets) and HKS drager II - this sucka would be loud.

 

The Greddy Ti-C is one of the loudest cat-backs out there. I have it and it's way louder than my Greddy Evo II was. Thats mainly due to the rear section being pretty straight.

Here's mine



Its much smaller when compaired to the Evo II

 

Apex's car is significantly louder than mine and I have an Apexi N1.


I always wanted a loud luxury sedan myself... hahaha

 

You can go that route with all those weaksauce cat back exhaust systems like the ones above or take my word for it and get a Magnaflow Full Cat-Back exhaust and you will be thanking me from start to finish... I set off alarms, **** off neighbors and get compliments all at the same time on mine. Get the Headers installed and will get that beefy noise you have been lookin for Happy shopping

 

magna flow it is. thats the kinda noise im looking for. thanks

 

For the price of the Magnaflow, you might as well buy the SRT full exhaust kit. It's way better than the Magnaflow one.

 

Brian, buy any n1 style muffler, delete your resonator and you will have a sweet and clean sounding car. If the car is not loud enough, delete the cats too.