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03-28-2013, 04:36 PM
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#1 |
         
Drives: 2011 2SS 6.2L W/RS package Join Date: Jan 2011
Location: Colorado
Posts: 3,008
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KOOKS FULL EXHAUST
I am just about to pull the trigger on a full exhaust, and I am leaning towards KOOKS 651504-CX-MUFF
I have an L99 But I have a couple of questions: 1. Will I still pass emissions with this system? 2. Can I ditch the cats till it's time for my emissions? with a tune of course.. 3. Do I need some special cats for the state of Colorado? Green? 4. Does anybody see any reason I should not go with this full set-up from KOOKS? TIA.. 
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 KooKs LT Headers, Borla S-Type cat back, RotoFab CAI, Bo White PTB, RMCR tune... |
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03-28-2013, 04:45 PM
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#2 |
Drives: Chevys at the limit Join Date: Nov 2010
Location: SLC, UT
Posts: 9,621
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Tuning will be required unless you go with the Green cats. Otherwise you will set a CEL. It is possible to pass emissions with no cats, however if they look you will fail the visual inspection. With cats you are good to go. We recommend cats as there is very little HP difference vs catless and catless exhausts tend to sound raspy in my opinion.
The full KOOKS system is awesome and allow's you to run a full 3" system and not have to "Neck down" to 2.5" like most systems do at the mid pipe to catback connection. Please feel free to call, PM or email me anytime with questions. Best regards, Tyler 888-308-6007 |
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03-28-2013, 04:49 PM
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#3 |
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Account Suspended
Drives: 2010 2SS/RS Red Jewel L99 Join Date: Jun 2011
Location: NB,Canada
Posts: 834
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Do you have Kooks headers?
That part # is to be used with Kooks headers only. (just in case you did not notice that) I have the full 3" on mine with hi-flo cats aswell as the Kooks headers. I love it,and customers that hears my car are saying that the car sounds great. Can't answer your question about the emission in your state though. I can tell you,big chance your check engine light will come on with the hi-flo cats,they will not come on with the green cats. |
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03-28-2013, 06:07 PM
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#4 |
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Drives: 2011 2SS 6.2L W/RS package Join Date: Jan 2011
Location: Colorado
Posts: 3,008
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Thanks!!
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KooKs LT Headers, Borla S-Type cat back, RotoFab CAI, Bo White PTB, RMCR tune... |
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03-28-2013, 06:12 PM
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#5 |
 Drives: pleather and Chiclets Join Date: Mar 2012
Location: a line somwhere
Posts: 4,206
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while the check engine light does not come on with the green cats combine the kooks headers and a intake and you will definatly have a no bueno air fuel ratio and run super hot.
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03-28-2013, 06:14 PM
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#6 |
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Drives: 2011 2SS 6.2L W/RS package Join Date: Jan 2011
Location: Colorado
Posts: 3,008
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Oh I will be doing a tune no matter what!! I also want to do the CAI at the same time..
Intake and TB will be at a latter date..
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KooKs LT Headers, Borla S-Type cat back, RotoFab CAI, Bo White PTB, RMCR tune... |
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03-28-2013, 06:19 PM
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#7 |
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Drives: 2011 2SS 6.2L W/RS package Join Date: Jan 2011
Location: Colorado
Posts: 3,008
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So as long as I get a tune with my set-up I really don't need the green cats do I?
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KooKs LT Headers, Borla S-Type cat back, RotoFab CAI, Bo White PTB, RMCR tune... |
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03-28-2013, 06:23 PM
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#8 | |
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Account Suspended
Drives: 2010 2SS/RS Red Jewel L99 Join Date: Jun 2011
Location: NB,Canada
Posts: 834
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Quote:
Correct. The tuner can shut off the codes that the hi-flo cats can cause. |
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03-28-2013, 06:24 PM
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#9 | |
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Drives: Chevys at the limit Join Date: Nov 2010
Location: SLC, UT
Posts: 9,621
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Quote:
Best regards, Tyler 888-308-6007 |
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