Hello,

I will be installing my Injen CAI kit this weekend. I read the instructions, and it is stated that the 2-into-1 vacuum hose setup from the boost control solenoids will not be used with the new intake; instead you use two separate vacuum hoses from the BCS connected to the two intake fittings. This new setup allows for more boost. Since I'm using a Cobb AP, i will be moving to an Injen-specific map. My question is as follows: should I follow Injen's instructions and use two separate hoses, or should i stick with the stock setup (i.e. 2-into-1 hose with a checkvalve)? Will running two separate vacuum hoses cause boost spikes to unacceptable levels, or wil the Injen map compensate for that?

Any feedback you can provide would be greatly appreciated. Thank you very much for your assistance on this.

 

I replied to you in the Cobb Forums:

I have the same setup on my MR, with an AMS Mitsubishi Lancer Evolution X Racing Series Cat-Back Exhaust System.

I followed the instructions from Injen. The hoses that will be changed in the install does not have the boost pill in them.

I did the Stage1+INJ ACN91 Octane at first.

The highest I got to was 25.2 psi, which is ok.

But to be on the safe side is reflashed it to Stage1+INJ ACN91 Octane LWG, it stayed on the target boost level for me.

 

Hi Nick,

thank you for your reply. I did see your original reply on the Cobb Forums. As i stated, i was overboosting too, even though i kept the factory 2-1 setup with the pills installed. I am currently running on the lwg map. On a different note, man is that intake noisy or what? Damn....

 

It's ok.

Injen is one of the better intakes out there.

It does not throw the AFR too far off.

I also have a BNIB AEM intake.

Mine is not too loud since my cat back is as loud.

LOL.