Header

[JRBRUIN7@aol.com]

I'm new to the world of Imports and I'm slowly learning as I go along, can anyone recommend a good header, I have an 06 with an Injen CAI and the TRD exhaust. I have been reading stuff about the check engine light coming on if you replace your header, can anyone tell me what thats all about? Anything is greatly appreciated!

[ac3 b00gi3]

I'm going with MMW (Weapon R Race header) there the only TRUE 4-2-1 header out there that i know ov .. its sed to give u 26HP and 24TQ wen combined with a CAI and cat back

[navylife59]

First, only buy a true 4-2-1 header. That is tuned for street giving a broader low power band. The 4-1 headers that most sell are considered a race header. They increase the mid to upper power band at the expensive of the lower. Since you don't tool around town doing 4K launches, you will notice a difference that may not be to your liking.

The MIL (Maintenance Indicator Light) aka check engine, is caused by incorrect readings of the bank1sensor2 narrowband O2 probe when the main catalytic convertor (cat). It provides feedback to the ECM (Engine Control Module) on the status/performance of the bank1sensor1 wideband A/F probe and the main cat. This can sometimes be caused by aftermarket s-pipes that have the O2 sensor bung welded in the wrong place.

[ac3 b00gi3]

well said bro .. the MMW i'm going with comes with a CEL eliminator so i won't be worring about failing my inspections

[JRBRUIN7@aol.com]

So replacing the header will not make the engine light come on? Also if I replace the header should I replace the S pipe too?

[carboncrazytc]

i would recomend changing the s-pipe as well invidia makes a real good one for a descent price.and the o2 bung is welded correctly ive had no light come on.

[navylife59]

No main cat equals MIL. You will have to use the (2) sparkplug anti-fouler trick to fool the ECM.

[carboncrazytc]

does the light being on hurt nything??

[navylife59]

Nope, it is just alerting the tech of DTCs (Diagnostic Trouble Codes) are active in the ECM. Your emissions maybe off just a tiny bit, but you won't pass inspection becuase of the light and the codes stored in memory.

[carboncrazytc]

in the glorious state of tennessee we dont have inspections. you would be amazed at the cars down here they let drive lol its wild i live in the city and its crazy. in the stciks holy crap it would blow your mind lol..

[ac3 b00gi3]

ah man .. i should move ASAP