Newbie - Week #2 Modding Results
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2004-2007 Cadillac CTS-V Performance Mods Discussion, Newbie - Week #2 Modding Results in Cadillac CTS-V Series Forum - 2004 - 2007; So I got my introduction to mod hell this week. Upgrades performed a week ago: - Gutted exhaust - Replaced ...
  1. #1
    FuzzyLogic is offline Banned
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    Newbie - Week #2 Modding Results

    So I got my introduction to mod hell this week.

    Upgrades performed a week ago:

    - Gutted exhaust
    - Replaced differential fluid
    - Hard-wired Beltronics STI Driver
    - Installed driver's side CG Lock

    Upgrades performed last weekend:

    - Installed 1-7/8" OBX headers (painted & wrapped)
    - Installed mock cats + modified stock exhaust to fit headers
    - Replaced upstream O2 sensors with Bosch O2 sensors
    - Replaced stock floormats with Lloyd's embroidered CTS-V mats
    - Replaced engine coolant and oil
    - Installed Lingenfelter CAI
    - Tested three different brands of EL wire and 3157 LED bulbs (all rejected)
    - Tested VHT brake caliper paint (rejected)
    - Removed engine cover (aka, the Engine Blanket)

    ------------

    Lesson(s) Learned #1 (headers):

    - The driver's side header requires you to unhook the steering linkage and remove the oil filter (forcing an oil change). These things are NOT mentioned in the FAQ, and caused several hours' delay.

    - Although the CTS FAQ does tell you that you have to remove your coolant temperature probe, it doesn't warn you that doing so will result in a major spillage of engine coolant. Another delay.

    - Although both Kooks and OBX claim that their kits are compatible with the stock exhaust system, they're not. Turns out that you need a sawzall with a metal bit to knock off almost a foot of the exhaust, which you can do under the car provided that you have tall-enough jacks.

    - Once you're "done," you'll still need a pair of Bosch upstream O2 sensor kits ($58 each), since the old sensors only have 12" cables. Don't bother buying extensions online--they're almost expensive as the Bosch kits, and they don't include these nice sensors. FWIW, the driver's side sensor needs every inch of that cable length, plus most of the cable from the old sensor.

    - If you have a LS2, you only need to remove the two rear passenger-side spark plugs when you install 1-7/8" headers. Nice.

    - Words cannot describe how much of a pain it is to re-insert the dipstick . After fighting with the thing for 3 hours, I found a random illustration in the CTS-V service manual that allowed me to spot the receptacle and shoot the following pictures / video. I may add this to the FAQ to save others hours of hardship.

    Informal Dipstick Video (rough)

    Midstream Dipstick Picture

    Dipstick Receptacle Picture

    --------------

    That's it for the moment. I'm ridiculously tired, and need to think about how I'm going to integrate this stage of my mods into that gigantic post that I've been promising that I'll write after I finish with these mods. Coming up next month:

    - LS2 --> LS7 clutch conversion
    - Lightweight flywheel installation
    - Katech remote clutch bleeder installation
    - Lingenfelter / Katech short-throw shifter installation
    - Cadillac V2 knob installation
    - Kiwi OBD2 Wifi transmitter installation
    - 2011 wireless key fob trial
    - Ground Control spring kit installation
    - Dyno tune

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  3. #2
    rand49er's Avatar
    rand49er is online now Cadillac Owners 10000+ Posts
    Automobile(s): 2005 CTS-V, 2011 Cruze 1.4T 6MT
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    Re: Newbie - Week #2 Modding Results

    Three hours to get the dipstick tube back in is about average. Took me nearly that, but it seemed like eight hours. Some guys seem to do it in about 10 minutes while others have to get their car towed and have a shop do it. The instructions in the FAQ were done by Rick (StealthV), and I already gave him heck about neglecting this little anxiety-producing step.

    You forgot to report one very important thing! How does it sound?!!
    '05 CTS-V, Maggie, Kooks, Hotchkis, Ground Control, Corsa, B&M, DSS/Hendrix, Full 3M Clear Bra, Autovation, V Headrests, CTS Console, STS-V 55w Fogs, Black Vette FRCs, Specter Werkes, Katech LS9 Clutch, SS Brake Lines, Heavymetals U-Turn Fuel Line Eliminator, Momo Combat Evo Shift Knob, Wldwhl Clear Sidemarkers, Linea Corse LC855 Wheels or OEM wheels w/'06-'07 Center Caps, plus a couple more. 472 RWHP/411 RWTQ (Mustang Dyno).

  4. #3
    perfect's Avatar
    perfect is offline Cadillac Owners Connoisseur
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    Re: Newbie - Week #2 Modding Results

    Definitely interested in the Kiwi ODB2 wifi transmitter...I'd love to hear more about that!

  5. #4
    catch2otwo is offline Cadillac Owners Fanatic
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    Re: Newbie - Week #2 Modding Results

    sweet details, nice write up.

  6. #5
    shadybx7's Avatar
    shadybx7 is offline Cadillac Owners Connoisseur
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    Re: Newbie - Week #2 Modding Results

    CONGRATS- you have def lost newb status once you reinstall the dipstick.. everyone has problems with it unless you have a lift and helpers.. i did my entire install myself and the dipstick was the most frustrating part.



    Quote Originally Posted by FuzzyLogic View Post
    Lesson(s) Learned #1 (headers):

    - The driver's side header requires you to unhook the steering linkage and remove the oil filter (forcing an oil change). These things are NOT mentioned in the FAQ, and caused several hours' delay.

    - Although the CTS FAQ does tell you that you have to remove your coolant temperature probe, it doesn't warn you that doing so will result in a major spillage of engine coolant. Another delay.
    You didnt have to remove the oil filter.. I never did. first time i have ever heard someone say this. BUT might as well do it while your there.. How were the mounts??

    also all you had to do was un-clip the coolant sensor not un-bolt the whole thing..

    Also your tuner will 9/10 tune out your rear O2 sensors because basically all they report is cat efficiency and throw codes.. front 02s are all that is needed, good idea on replacing those if you had a high-mileage motor


    so 2011 key fob, ehhh? i love the idea, whats the plan because i was under the impression we were stuck with this generic piece of GM crap

  7. #6
    FuzzyLogic is offline Banned
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    Re: Newbie - Week #2 Modding Results

    Quote Originally Posted by shadybx7 View Post

    How were the mounts??

    so 2011 key fob, ehhh? i love the idea, whats the plan because i was under the impression we were stuck with this generic piece of GM crap
    Didn't check the mounts--this car only has 15,000 miles on it, so I didn't bother.

    I haven't been able to get a straight answer on the key fob, so I bought one and I'm going to bring it into a dealership to see if they can get it to work. If GM changed the frequency, then it won't--but I'll only be out $25.

    Quote Originally Posted by rand49er View Post
    Three hours to get the dipstick tube back in is about average. Took me nearly that, but it seemed like eight hours. Some guys seem to do it in about 10 minutes while others have to get their car towed and have a shop do it. The instructions in the FAQ were done by Rick (StealthV), and I already gave him heck about neglecting this little anxiety-producing step.

    You forgot to report one very important thing! How does it sound?!!
    Hopefully I'll be able to fix that once I have time to help out on the FAQ.

    Frankly, I think the car sounds like crap now. The exhaust note is worse, in my opinion, but you can listen for yourself (see the second video). I'm getting a lot of high-pitched squeaking (appears to be originating from the header outlet flanges) that reminds me of shot-to-hell Ford Explorers. Not sure if that's because cat delete (nothing happened when I gutted the mufflers two weeks ago), or because the timing is off, but it's driving me nuts. In any event, I'll re-evaluate once I get it tuned. If you have any suggestions, I'm all ears.





    Note that it's about 95% humid outside right now, so the second video features a lot of visible exhaust.

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