Primary and secondary cat delete.

[BUCHANAN2009]

Hey people have a question. I'm sure it's been discussed but I can't find it lol. Just did my muffler delete. Getting ready to do cat delete and add an x pipe....how do I address the overboost issues? Or will I have any? Jb4 and intakes.

 

[StingerMG]

Once you delete the secondary cats, you'll run into overboost issues. A JB4 with EWG wires or a Lap 3 ECU tune will eliminate any overboost issues.

 

[BUCHANAN2009]

I have ewg wires. Contemplating an ecu tune but the price is out of reach at the moment.

 

[StingerMG]

I have ewg wires. Contemplating an ecu tune but the price is out of reach at the moment.

I only have experience with the Lap3 ECU tune. It's awesome and silky smooth. I know the JB4 back end flash works SXTH ECU tunes. I'll recommend researching any ECU tune Lap3, SXTH, Lozic, and Tork before buying

 

[BUCHANAN2009]

I only have experience with the Lap3 ECU tune. It's awesome and silky smooth. I know the JB4 back end flash works SXTH ECU tunes. I'll recommend researching any ECU tune Lap3, SXTH, Lozic, and Tork before buying

Thanks!!! Been researching for a while. I have a couple 3.87 runs and many 4.0x on stock exhaust and intercooler, intakes and jb4. I love this car but I've really been looking at BMWs.