How come you did a cross over design as opposed to having the pipes run straight back from the mufflers?

 

We use 200 cell cats to address a broad range of emissions compliance demands and reliability. As a manufacturer, it is better to be over-engineered than to have a lot of calls and problems due to emissions testing, CEL's, etc. We are offering a product we have tested under a variety of conditions and feel comfortable with..and the difference with 100 cell cats is only a couple of HP on our exhaust.

As Mark has pointed out, you could easily buy a 100 cell cat exhaust of a different brand and experience less gain than with our 200 cel, straight through design...I feel we have a proper mix of sound level, performance and reliability to please the majority of customers and tastes.

 

I see where you're coming from
200 cats = no CEL = happy customers

 

yup, I have 200 cell cats and no cells.

 

What effects the tone and characteristics of the exhaust?

What makes some sounds "boomy" (Miltek?)
Whilst others seem to scream (Switzer)

 

too many factors I think. pipe size type of mufflers number of turns, type of turbo, type of cats. if you have enough money you can try them all

 

yes thats where the mufflers are... and as you can see its a no brainer....
if that can hold 1000 rwhp then Im sure it can hold 500 rwhp..
but thats not for everyone....

 

Every new picture you send me is more extreme than the last! if that's at all possible anymore!!

I like the simplicity of your system but don't think i could run it as a daily driver
Also, being in the UK I need cats as we get emissions tested every year

Is there a benefit from having the long pipes cross over instead of just flowing from the mufflers straight out the back of the car?

I'd have guessed the less pipework there is the better?

 

well my exhaust is probably as free flowing as it gets maintaining some piping to quite the noise from a set of gt35r turbos.... a similar set up can be made with cats as well... no big deal....
I just wanted to show you what is behind those shiny fancy mufflers... and franckly speaking its either a crossover or a U back muffler ...
OK one more "radical idea"... I made this a few years ago as well... I used 100 cell cats with custom piping and techart tips....
My point is: there are better and worse exhausts... I agree... and like I said, my friend tested 2 $4500 exhaust systems and actually lost power.... it was choking the turbos.... but for the most part average guys like you never even go that far so you will never even know the difference....

 

Yeah - I now know the basic layout inside the shiny mufflers couldn't change too much between different makes

I think most of the information about exhausts could be hype/marketing

I'd like to know what gives the different exhausts their notes/sounds
That way I could get something made that suits what i'm after

Why do some boom and some scream?
The layout is the same, the pipework is generally the same size, the cats don't have an impact on noise, it's only the mufflers that are different

Is it to do with the materials/packing inside the mufflers that changes the sounds?

 

mufflers make a difference... diameter of piping, bends etc.... a 200 cel cat will quite down the 100 cell cat .... etc etc...

 

so markski due to your tuning experience with a 996TT what is the best exhaust system in the market would be ? can you give me details like the name of the exhaust 100 or 200 cell etc, thanks alot , due to your experience i give u the "996TT encyclopedia" as a nickname

 

Do different manufacturers use differnet materials inside the mufflers?

Are they packed in a different way?

 

wow thats AWESOME!!!! the mufflers are short right after the turbos correct?