What did you do with/to your Boxster today?

[Qckslvr]

Originally Posted by Ciao

I agree with that these P cars are engineered almost perfect from the factory and making them fast is cheaper and more effectively done by dropping weight.
Questions: 1. Do you have issues with passing emissions from dropping the Cats? (2) what was the purpose of wrapping the exhaust and what wrapping used?

I can answer the emissions part.

I dropped the entire catalytic system and installed headers with pipes. After a tune the car picked up about 30hp. I live in CA so I have to deal with emissions. I installed ARP header studs. This makes dropping the headers, and swapping the cats in for smog about a 1 hour job for me. (I installed all new O2 sensors when I put the headers on) As for the check engine light, I use FVD Brombacher O2 sensor extenders/mini cats. This tricks the secondary sensors into thinking there are cat converters.... No CELs

When installing the headers I wrapped the P/S line, and the coolant hose. The headers are really close to them.

[Ciao]

Originally Posted by Qckslvr

I can answer the emissions part.

I dropped the entire catalytic system and installed headers with pipes. After a tune the car picked up about 30hp. I live in CA so I have to deal with emissions. I installed ARP header studs. This makes dropping the headers, and swapping the cats in for smog about a 1 hour job for me. (I installed all new O2 sensors when I put the headers on) As for the check engine light, I use FVD Brombacher O2 sensor extenders/mini cats. This tricks the secondary sensors into thinking there are cat converters.... No CELs

When installing the headers I wrapped the P/S line, and the coolant hose. The headers are really close to them.

Thanks Qckslvr; these thoughts will come in handy; 30hp gain! that is impressive...which tune? We only have 91 octane at Mile High (Denver) unless you purchase race gas 100 octane @ $9.40/gallon

[Qckslvr]

Originally Posted by Ciao

Thanks Qckslvr; these thoughts will come in handy; 30hp gain! that is impressive...which tune? We only have 91 octane at Mile High (Denver) unless you purchase race gas 100 octane @ $9.40/gallon

wish I could tell you the tune, it was done by S-Car-Go in San Rafael, CA