I justbought a used comptech testpipe, 5 zigen, and an hks turbo exhaust. Is it safe to put this full setup on my stock S2K, or should i wait to put the testpipe on till i supercharge. I do not want to damage or hurt my car in any way. Please let me know what you guys think.

 

What are you afraid of hurting?

 

i dont want any leaky head gaskets because of high compression, or any other damage that could occur that will harm my engine. The man i bought it all from said to wait to put the testpipe on but i really want to put it on right now.

 

lol, put the TP on already, your car will not be harmed in anyway, good luck

 

Leaky head gaskets? I thought you were just talking about an exhaust? Puttin a test pipe on will no damage anything, it may throw a CEL (check engine light) tho. This is ok, the code will be for the secondary O2 sensor, something like "too lean,bank 1,sensor 2. The purpose of the 2nd o2 sensor is mainly for cat efficiency. I have a test pipe on my turboed S and I use the bung for this sensor for my wideband, I just zip tied the o2 sensor up under the car. The CEL will be on for about 3 days and then (with mine at least) it will go off. Hope this helps out.

 

Thanks bud. Sounds like im throwing it on. I remember there being two holes on top one for the o2 sensor and another, should i just put a screw in that second whole?

 

Yes, the second hole is used for a wideband. If you're going to sc it down the road I'd go ahead and invest in a good wideband unit. Something like AEM UEGO or an Innovate LC-1.

 

Its not going to harm your car.
the only thing I could see happening is a bit of dark build up where the exhaust tips sit under rear bumper. It can be scrubbed off with a little alchohol .. I had that happen on my last car when I did full exhaust.

 

You will only be hurting the environment with that test pipe!