Somehow the fumes of my exhaust get in to my car, it gives me a headache sometimes .Does anybody have this problem? Ive checked and had it checked for any leaks but its all good. Do you guys think its cause of the test pipe? Whacha think?

TIA

 

I have a testpipe and it does the same, but I don't see how the testpipe would have anything to do with it

 

Its definately the test pipe.

 

instead of N2, CO2, and H20 with the cat, you are now pumping CO, VOC, O3, and NOx into the air because of the testpipe. that stuff smells ALLOT worse.

 

I'm sure it does, but how does it work it's way into the car? It should end up with the rest of the fumes out of the tailpipe right?

 

exhaust always gets into your car if you have the windows down. with no cat it just becomes more noticable (sp?).

 

yeah, but I get that **** with my windows up....

 

Yeah!me too!

 

check the area where the ebrake cable goes through the floor for leaks.

 

maybe you have an exhaust leak. check the gasket seals on the test pipe and/or o2 sensor

 

I had a similar problem not too long ago. I had a crack in the exhaust manifold.

 

Would installing a Micron filter help? Has anyone done this to a 00' Si? Show pics if available...

 

<U>Ive checked and had it checked for any leaks but its all good</U>