How much apprx whp will catless dp's, remove 2nd cats, and DCI provide with a JB4?

badass1g · 01-11-2012, 11:40 PM

Obviously all cars will all be different so clearly there will be no exact number. But on a JB4 car with 91 octane and Map 1, no other mods.

What kind of WHP/TQ would one "approximatly" expect from removing secondary cats, getting 2.5 catless dp's, and a DCI setup? Maybe 20-25 whp/tq? And obviously gain some sound while doing so.

E90SoFlo · 01-12-2012, 01:32 AM

3" downpipes are better, but 2.5 will do.

You will be able to go up a map i believe.

BreakPoint · 01-12-2012, 02:04 AM

27.34hp/ 36.21tq

Bash · 01-12-2012, 07:40 AM

i'd say 10 - 20 WHP

JamesM3M5 · 01-12-2012, 07:53 AM

Typically people report 10-15HP/Tq from the DCI and up to 40 from the downpipes. It of course also depends on the aggressiveness of the tune. As stated earlier, those mods will allow you to run a more aggressive map, so all in all, I'd count on 30-40HP/Tq easily. I'd be surprised otherwise.

01-11-2012, 11:40 PM	#1
badass1g Captain 51 Rep 646 Posts Drives: 07 335i Join Date: Oct 2009 Location: utah iTrader: (7)	How much apprx whp will catless dp's, remove 2nd cats, and DCI provide with a JB4? Obviously all cars will all be different so clearly there will be no exact number. But on a JB4 car with 91 octane and Map 1, no other mods. What kind of WHP/TQ would one "approximatly" expect from removing secondary cats, getting 2.5 catless dp's, and a DCI setup? Maybe 20-25 whp/tq? And obviously gain some sound while doing so.
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01-12-2012, 01:32 AM	#2
E90SoFlo Banned 196 Rep 2,669 Posts Drives: E90 335i Join Date: Jun 2011 Location: Naples, FL iTrader: (9)	3" downpipes are better, but 2.5 will do. You will be able to go up a map i believe.
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01-12-2012, 02:04 AM	#3
BreakPoint Banned 21 Rep 572 Posts Drives: E92 M3 Join Date: Jan 2011 Location: North NJ iTrader: (4)	27.34hp/ 36.21tq
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01-12-2012, 07:40 AM	#4
Bash First Lieutenant 8 Rep 395 Posts Drives: E92-335i Join Date: Jan 2011 Location: Beirut iTrader: (0)	i'd say 10 - 20 WHP __________________ COBB S2+ - Mr.5 CAI, Catless DP, Catless MP, AMS FMIC.
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01-12-2012, 07:53 AM	#5
JamesM3M5 Some dude 92 Rep 1,780 Posts Drives: E92 335i Join Date: Sep 2011 Location: Northern VA iTrader: (0)	Typically people report 10-15HP/Tq from the DCI and up to 40 from the downpipes. It of course also depends on the aggressiveness of the tune. As stated earlier, those mods will allow you to run a more aggressive map, so all in all, I'd count on 30-40HP/Tq easily. I'd be surprised otherwise. __________________ RRT E92 335i/6MT with stuff and things
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