question for any of you racing or high horsepower guys,...how do you guys get pass emmissions with the engines you run do you leave all the crap on? or rip it off,...and how would you pass the test if you did rip that crap off? thanks tim

no tests in Virginia

In AZ most leave it on or do collector car insurance. Lastly very precise tuning!

It's continually changed here as the tests have changed and what has to pass has changed. If you do it right, you can get a lot of HP through a treadmill or idle test, a plug in OBDII test is workable also, but they all present different problems.

More recently, 3rd gens are getting old enough to register as classic or street rods, which are exempt from emissions testing.

In AZ just a few months ago, I removed the belt from the blower, removed the intake tubing from the intercooler to the throttlebody, put a filter directly on the throttlebody, changed from 72 to 24 lb/hr injectors, put the AIR pump back on along with the hoses, reset the tune for the new injector size, and then went back for a retest.

Results of the retest on a car where the only functioning emissions equipment is a metal core racing catalytic convertor was a pass by .002. A small margin but it still passed. In the process, I managed to break a testing lane when the drag radials hooked on the acceleration phase and the system faulted repeatedly.

If I were the inspector, I would have failed the car after popping the hood as having been obviously demodded for the test but they didn't. In 2 years when its due for a retest, I'll put in on collector car insurance and skip the testing.

FYI: with the blower operational and the 72lb/hr injectors, it blew over 5 times the legal limit on the test. For those of you complaining about the emissions, I doubt the car will see over a 1000 miles a year on the road so just get over it. It is far too obnoxious to even consider using it for a daily driver.