Quote:
Originally Posted by 335if30uae
seems only one member mikew2069 has installed HFC dp from Challenger... even vendor does not have a proper report ...please reply to following questions.
1 . does it throw code ? (HFC dp from Challenger)
2. What is the increase in bhp/TQ to stock.... any dyno comparison ?
3. is there any other brand with effective cat so there will not be any CEL ?
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Don't quote me as I'm no expert, but if my understanding on how the exhaust is monitored, you will throw a code eventually if you venture away from stock (even High Flow should read abnormal). You can get a tune to auto delete the code if you want but without a tune it will be there.
Increase should be about 30hp with all else stock, but that is dependent on tunes, with the freer flowing nature of going aftermarket DP you can more safely turn up the boost and get more gains (see Stage 2 JB4 and DP producing 360hp/410tq at the wheels with no other mods).
You can go to the BMS website and look at dynos with stock and tuned and with DP. Looks like their stock car produced about 275hp and stock map produced 305hp with a DP. And up from there using Map and and Map 2.