CAT REMOVAL

[ceed09]

Is it practical to remove the Cat for better performance? If I remove them, do I have to put resonators in its place or can I just put same size pipes?

 

[bing]

No power gain by just removing cats. However, a complete custom made/high performance exhaust with crossover pipes debated here that it does : http://www.500eboard.com/forums/sho...s-Worth-the-Trouble/page2&highlight=catalytic. Also, early/some 036s were non cat , so there's a factory pipe but not sure if still available .

 

[gsxr]

Is it practical to remove the Cat for better performance? If I remove them, do I have to put resonators in its place or can I just put same size pipes?

It's not practical, and no there will not be a measurable performance increase. If you did remove them, no additional resonator is necessary as long as you keep the stock resonator (middle muffler). If you remove the cats AND replace the resonator with a Y-pipe, you may find the results unacceptable, as I did. I have stock factory cats on all my cars now. I would not bother messing with the exhaust at all unless you were trying to extract the last few ponies from a 6.xL conversion.

 

[need2speed]

It does sound nice though....

[youtube]k7G86Oxz69E[/youtube]

 

[gsxr]

As an experiment I attended the last two races with just the catalysts installed, a Y-pipe, and no muffler. Basically just cats and nothing else. It's not nearly as loud as you might think, but it would get tiring rather quickly in a street driven car. It did sound pretty sweet at full throttle though. I wonder what it would sound like with full open exhaust (no cats, no mufflers)...