what are the pros and cons of blocking off the egr at the manifold?
i'm getting ready to install the tpis bigmouth and was wondering if i should block it off seeing how it will be so conviniant.

 

I don't think it would be a good idea unless you plan on modifying your prom accordingly. An increased chance of detonation and totally screwing your emissions are just a couple of down falls. Remember, your egr system does not hurt performance when it is properly operating. Have you read this:

https://www.thirdgen.org/newdesign/t...diagnose.shtml

or this:

http://sethirdgen.org/egr.htm

???