My truck went from 13.501@101 to13.32 @103 by taking the cats off. All I have done is flowmasters and pro-m 80mm,and has no cats. No chip and just the spare tire off. I have a PSP chip coming soon I hope. not sure when it will show up. Also have a used JL chip coming. I have 42000 miles and running better everyday. I know I could have got into the 13.20s If I had time to let it cool.It was street tire shoot out, I took third out of 350 cars. I never had a check engine light come on either after taking the cats off.

 

LJ
I blocked the EGR valve on my truck and it took over 30 miles of highway driving before the light came on. I tried it several different times and it always took a little while. If your light does come on, talk to Spiro or Sal, they can fix it.
Dale

 

That's true..I could. The light can be turned off by the chip. What is happening is that the 2nd set of sensors is looking for an exhaust content difference after the cats, but without them it trips a light...easily corrected for.
Contact me at SPIROatPSP@aol.com, we could go over your order.

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Spiro-
12.373 @ 110.15
Best 60' 1.72
@ 4700 w/out the Go-Go juice

11.94 @ 115.31 with the Go-Go juice @ 4700 lbs.

-Stock Meter
-Stock TB
-Stock Heads
-Stock Manifolds
-Stock motor
-Stock Torque Convertor

Empty Pockets Racing DE-NJ

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