Maybe I am just getting old but I am getting tired of smelling that fume and seeing a black cloud of smoke... and I feel sorry for the driver who is stuck behind me in traffic.

Not ready to give up a good sounding exhaust just yet, is there an aftermarket exhaust out there that sounds good with the OEM catalyctic?

 

From what i've read, the Invidia Q300 with OEM works well. Might not be loud enough for you though

 

Any exhaust is good with oem cat

 

My HKS Hi-Power Dual sounds like sh!t with the catalyctic. Drone from 3000 to 3500 rpm.

 

must be a defective HKS...

 

Amuse R1 Titan

I'll have a video posted of it very soon on youtube to compare stock and Amuse. Stock header and cat.

 

Go with the Mugen.

 

HKS will drone with stock cat, I had one.

After tons of exhausts, I have finally found the winner: Stock exhaust, with the UK exhaust mod performed. It sounds great, with no drone on the highway.

Search the forums for it, it connects the loop to the main pipe.

 

I have the Invidia n1 double in my car with OEM cat and the difference with TP isnt that big to notice... but drone is there.. I dont mind Drone nor smell so im good

 

I like the CR exhaust on my ap1, but I don't like loud exhausts, this may not be loud enough for you but it is louder than stock.