Hi, i am sorry if this question is addressed before, but i couldn't decide which one to buy, which one is the best/reliable and value for money secondary cat bypass for my 2009 CTT-S.

There are 3-4 different makes with $100-$200 difference, do they all give different sound output?

Thanks in advance.

 

From what I've seen, they all do the same thing. They are basically straight pipes. All will sound the same with stock mufflers.

I have the Fabspeed cat deletes, and LOVE them! #1 Best mod on my pepper.

 

Fabspeed they are the first one to come out with it..

 

What do you guys do about smog checks?

 

doesn't affect smog since its a secondary cat..
you talking about visual?

 

Really? No problem passing in California? Does it affect gas mileage? How many horsepower can be gained on a S?

 

Leistung also makes them. check them out as well if you are shopping around.

 

Yeah there is Leistung for around 380, fab speed for 580'ish, saw one more for 850$, local exhaust shop can make it for $200.....

Question is: what is the difference?

 

With quality units like LMS and Fabspeed, probably not much, but if you do go local, then make sure the bends are mandrel bends and not crush bends. And might as well go with stainless steel. Also make sure you have hangers on them like the LMS units to avoid rattling noises. Good luck man!!

 

Exactly what he says!

I have the Kreissieg bypass pipe and rear muffler. When flapper valve is on, it goes really loud.