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  1. #1
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    Thinking About Doing This

    Hey fellas,

    Thinking about adding the kw height adjustable springs, KW Height Adjustable Spring System 2012-2018 392/6.4L/6.2L Challenger w/ Adaptive Suspension

    also some shorty headers, during my research I found these from fast hemi AFE Twisted Steel Headers: 300 / Charger / Challenger / Magnum SRT8 2008 -2018,

    and last but not least some high flow cats High Flow Catalytic Converters2006 - 2014 SRT-8 Charger/Magnum/M300 - Solo Performance.

    If you guys know of any other products that are just as good and more bang for the buck or less please let me know. Any and all info is great appreciated .
    2012 300 SRT8 exhaust, intake, tuned, 180 thermostat, oil catch can
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  2. #2
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    Mar 2017
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    If you have an SRT, don't waste $900 on shorties, your stockers flow just as well.

    Sent from my XT1650 using Scat Pack Forums mobile app
    Thanks stsrt8 thanked for this post
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  3. #3
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    Had BC Racing Coilovers on a 2010 Challenger.. Great for lowering. Don't be surprised if your alignment guy says he can't get it right on spec. I put on adjustable upper A frames and Eibach adjustable rear bushings.

    I also put on SRT shorties, Magna Flow HF cats and Corsa cat back exhaust. The HF cats threw a code... Fixed with Big Daddies Mini Cats.
    Last edited by hemi_57; 02-08-2018 at 09:04 AM.
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  4. #4
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    Quote Originally Posted by punisher69 View Post
    If you have an SRT, don't waste $900 on shorties, your stockers flow just as well.

    Sent from my XT1650 using Scat Pack Forums mobile app
    Thanks for the info and will not do, the research I found said our shorty's are pretty dam good.

  5. #5
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    Quote Originally Posted by hemi_57 View Post
    Had BC Racing Coilovers on a 2010 Challenger.. Great for lowering. Don't be surprised if your alignment guy says he can't get it right on spec. I put on adjustable upper A frames and Eibach adjustable rear bushings.

    I also put on SRT shorties, Magna Flow HF cats and Corsa cat back exhaust. The HF cats trew a code... Fixed with Big Daddies Mini Cats.
    Thanks for the info, never heard of Big Daddies mini cats, will have to check them out.

  6. #6
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    I have had the KW adjustible installed on my 2013 Challenger for about 5 years. Works great and actually has more range of adjustment than advertised. My car is lowered about 1.25". You will also need front control arms and rear bushings to get a correct alignment after lowering. Links: SPC Front Control Arm 2009-2016 Challenger/Charger/300

    Eibach Rear Alignment Kit 2005-2018 RWD Challenger/Charger/300/Magnum






  7. #7
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    Oct 2010
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    Have the KWs on my 2014 300. Love them & the fact that it keeps the stock dampener control is great too
    LMI True 4" CAI - Tranzformer V2 - Trinity - QTP Cut Outs - Killer Glass - BT Catch Can & Underhood Bling
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  8. #8
    Join Date
    May 2017
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    Quote Originally Posted by stsrt8 View Post
    Hey fellas,

    Thinking about adding the kw height adjustable springs, KW Height Adjustable Spring System 2012-2018 392/6.4L/6.2L Challenger w/ Adaptive Suspension

    also some shorty headers, during my research I found these from fast hemi AFE Twisted Steel Headers: 300 / Charger / Challenger / Magnum SRT8 2008 -2018,

    and last but not least some high flow cats High Flow Catalytic Converters2006 - 2014 SRT-8 Charger/Magnum/M300 - Solo Performance.

    If you guys know of any other products that are just as good and more bang for the buck or less please let me know. Any and all info is great appreciated .
    The stock exhaust manifolds are as good as shorty headers. They go 4 chambers into one smoothly. If you are gonna do exhaust I would go Kooks or American Racing long tube headers with high flow cats. .


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  9. #9
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    Thanks for all of this good information.

  10. #10
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    [QUOTE=SRTRonan;5057837]The stock exhaust manifolds are as good as shorty headers. They go 4 chambers into one smoothly. If you are gonna do exhaust I would go Kooks or American Racing long tube headers with high flow cats. .

    I already have the flowmasters II catback exhaust and they sound great was just looking at a high flow cat and from my research it seems as solo high flow cats has everything you would need and will cause no cel if I'm reading their information right. if I'm wrong someone let me know. Thanks again for all the good info.

  11. #11
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    Quote Originally Posted by UpInSmoke View Post
    Have the KWs on my 2014 300. Love them & the fact that it keeps the stock dampener control is great too
    Did you have to add SPC front control arms and bushing for the alignment to get everything to fit properly or did it just pretty much bolt right into place? Thanks.

  12. #12
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    I have the ST Adjustable Coilovers (made by KW) Mines a 2010 dropped just over 2in. Front and Rear. I was able to align the front good, but the back was just a hair off, but not bad at all. I'm running the same tires for a 5-6 years and it's not wearing too bad at all. Just rotate if you can. If you like to do burnouts or can't rotate. Get the rear Bushing kit. I would hold off on the front A-Arms unless you just have that extra money for them.

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  13. #13
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    Quote Originally Posted by run2jeepn View Post
    I have the ST Adjustable Coilovers (made by KW) Mines a 2010 dropped just over 2in. Front and Rear. I was able to align the front good, but the back was just a hair off, but not bad at all. I'm running the same tires for a 5-6 years and it's not wearing too bad at all. Just rotate if you can. If you like to do burnouts or can't rotate. Get the rear Bushing kit. I would hold off on the front A-Arms unless you just have that extra money for them.
    Thanks for the info, that is some good news to me.

  14. #14
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    Quote Originally Posted by stsrt8 View Post
    Did you have to add SPC front control arms and bushing for the alignment to get everything to fit properly or did it just pretty much bolt right into place? Thanks.
    I didn't do the adjustable control arms. My fronts are pretty close on the alignment. But yes the springs just replace the factory springs along with an adjustable sleeve & collar. Then you adjust them like normal coilovers but you still have your stock dampeners in the car with the electronic controls

  15. #15
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    Quote Originally Posted by UpInSmoke View Post
    I didn't do the adjustable control arms. My fronts are pretty close on the alignment. But yes the springs just replace the factory springs along with an adjustable sleeve & collar. Then you adjust them like normal coilovers but you still have your stock dampeners in the car with the electronic controls
    Thanks for the info!!!.

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