I have the Perrin HFC. It looks real nice ( compared to others i've seen ) and it is legal in 49 states.

 

so in conclusion!

which is better

WORKS - HELIX - PERRIN?

Or just delete it and get over it!

 

I guess IL would be that one state where it's not legal then.

l8r)

 

what about this one? found it on ebay his store "ebay@frsport.com" 3 inche and looks like a stock cat.


Brand NEW Catco 3" High Flow Catalytic Converter EVO 8/VIII

Catco 3" high flow catalytic converter for EVO VIII will convert the current 2.75 in catalytic converter to a full 3" high flow unit. Opening the inlet and outlet from 2.75" to 3" will realize better and smoother exhaust flow especially for those EVOs equipped with aftermarket exhaust elbow, downpipe, or exhaust. Turbo spool will also dramatically increase due to better exhaust flow from the turbo out to the exhaust tip.

High quality 3/8 in laser cut flange will bolt right on to any 2.75" or 3" downpipe and exhaust making the installation quick and hassle free. Catalytic converter unit is of full length with 3" inlet and outlet unlike other brands. Free up your exhuast while still keeping the low profile, lower noise, and lower fumes from your exhaust.

Bolt on installation
3" thick 3/8" steel laser precision cut flange
Famous catco catalytic converter quality control
Full length type catalytic converter provides full lenth coverage.
Great for use with aftermarket elbow, downpipe, and exhaust.
Free up horsepower while increase engine turbo response.

 

Will it be possible to bolt on my TurboXS DP and Catback to the stock Cat? Does it create any 'restrictions' to the air flow? Will the Dp and catback perform less than normal with the Stock cat on ?