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I have a 2017 Challenger RT 5.7.
Current modifications is Borla Atak Catback, K&N Blackhawk CAI, Fastman Ported TB and a Jay Greene Tune.

How much rwhp willI realistically gain with my mods in place with 1-7/8 Kooks LTH and Kooks Catless mid pipes obviously with a updated tune from Jay?
 

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Probably around 25 horsepower. Do you have to deal with emissions?
 

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I can't give you a HP number as I have not been on a dyno, but here are some 1/4 mile runs at about +200 DA.

2014 RT A5 5.7l. 1 7/8 Kooks LTs, Catless Mids, SLP Loudmouth I, Nitto 555R 275/40R20. (Jack,Spare, back seats out of car)

IMG_0468 (2).JPG
 

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I have a 2017 Challenger RT 5.7.
Current modifications is Borla Atak Catback, K&N Blackhawk CAI, Fastman Ported TB and a Jay Greene Tune.

How much rwhp willI realistically gain with my mods in place with 1-7/8 Kooks LTH and Kooks Catless mid pipes obviously with a updated tune from Jay?
What kind of RWHP are you getting with your current setup?
 
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