I ordered a CP-E test pipe to change out my CP-E HFC, I was wondering if I will be tripping any CELs and if I had to get a dummy sensor until I get another tune when I get a few more parts in.

I currently have an AMS intake, AMS UICP, CP-E Dual TBE w/HFC, boost pill, cobb and custom stage 2 tune. I'm currently at 305/305 hp/tq on my 08 MR.

What hp/tq do you guys think is realistic if I get a 4" ETS IC, GM 3 port, the CPE test pipe and a tune?

Ideally, I'm looking for a 12.5 1/4 car and something fun to carve up twisties with when I don't feel like taking out my motorcycle.

 

you may get an 02 sensor code. it depends on whether it has a bung that holds the sensor out of the direct exhaust flow.

 

I have this and still throw a code sometimes.