stage 1 and downpipe

Dan_335i · 09-19-2014, 03:04 PM

Would there be any benefit if i have a downpipe with stage 1 ? I heard people say get jb4 with downpipe but i dont want to splice the wires.

Or should i just skip downpipe and do stage 1 and catback exhaust?

WickedC5 · 09-19-2014, 03:56 PM

You would get a CEL if you get the DP without the JB4. The stage 1 doesnt have the feature to suppress the CEL. I myself didn't want to splice wires as well, so I went with a AFE intake and BMS Stage 1 and will be getting a catback soon as well. So far happy with the results, but definitely wish there was a cleaner way to run the JB4 so that I could fully utilize the benefit of a catless DP and a higher map for more boost.

But again, overall happy with the stage 1 and intake. good bang for the buck.

Dan_335i · 09-19-2014, 10:31 PM

Quote:

Originally Posted by WickedC5

You would get a CEL if you get the DP without the JB4. The stage 1 doesnt have the feature to suppress the CEL. I myself didn't want to splice wires as well, so I went with a AFE intake and BMS Stage 1 and will be getting a catback soon as well. So far happy with the results, but definitely wish there was a cleaner way to run the JB4 so that I could fully utilize the benefit of a catless DP and a higher map for more boost.

But again, overall happy with the stage 1 and intake. good bang for the buck.

Which afe intake u have? Does it need any maintenance?

WickedC5 · 09-20-2014, 11:21 AM

Quote:

Originally Posted by Dan_335i

Which afe intake u have? Does it need any maintenance?

Ive got the Magnum. Dry filter. No maintenance really.

mike@x-ph.com · 09-22-2014, 01:16 PM

Quote:

Originally Posted by Dan_335i

Would there be any benefit if i have a downpipe with stage 1 ? I heard people say get jb4 with downpipe but i dont want to splice the wires.

Or should i just skip downpipe and do stage 1 and catback exhaust?

In terms of performance Downpipe will give you a good 30-40 whp gains, exhaust wont be of any benefit.
I would defintely upgrade to JB4 and get DP for maximum power ( and an amazing sound

)

Bee Pee · 09-23-2014, 05:30 AM

Quote:

Originally Posted by WickedC5

You would get a CEL if you get the DP without the JB4. The stage 1 doesnt have the feature to suppress the CEL. I myself didn't want to splice wires as well, so I went with a AFE intake and BMS Stage 1 and will be getting a catback soon as well. So far happy with the results, but definitely wish there was a cleaner way to run the JB4 so that I could fully utilize the benefit of a catless DP and a higher map for more boost.

But again, overall happy with the stage 1 and intake. good bang for the buck.

Not all DPs, decats yes but no CEL with 200 CPI HFC DP.

Useful upgrade to stage 1 car, both in terms added performance and sound

Jeff@TopGearSolutions · 09-23-2014, 03:47 PM

I'd do an intake sooner over a cat back exhaust. The performance gains are minimal on a cat back exhaust.

If you get a dry filter it's not maintenance but when it gets dirty you need to buy a new one.

Or you can get an oil filter and have the ability to clean it and re-oil it say every 20,000 miles.

For the most power gains, intake JB4 and catless downpipes.

09-19-2014, 03:04 PM	#1
Dan_335i Captain 102 Rep 936 Posts Drives: 2014 335i EBII MSport Join Date: Aug 2012 Location: toronto iTrader: (0)	stage 1 and downpipe Would there be any benefit if i have a downpipe with stage 1 ? I heard people say get jb4 with downpipe but i dont want to splice the wires. Or should i just skip downpipe and do stage 1 and catback exhaust?
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09-19-2014, 03:56 PM	#2
WickedC5 Second Lieutenant 33 Rep 221 Posts Drives: 2014 335i xDrive BSM/Coral Red Join Date: Mar 2014 Location: Il iTrader: (0)	You would get a CEL if you get the DP without the JB4. The stage 1 doesnt have the feature to suppress the CEL. I myself didn't want to splice wires as well, so I went with a AFE intake and BMS Stage 1 and will be getting a catback soon as well. So far happy with the results, but definitely wish there was a cleaner way to run the JB4 so that I could fully utilize the benefit of a catless DP and a higher map for more boost. But again, overall happy with the stage 1 and intake. good bang for the buck.
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09-23-2014, 03:47 PM	#7
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	I'd do an intake sooner over a cat back exhaust. The performance gains are minimal on a cat back exhaust. If you get a dry filter it's not maintenance but when it gets dirty you need to buy a new one. Or you can get an oil filter and have the ability to clean it and re-oil it say every 20,000 miles. For the most power gains, intake JB4 and catless downpipes.
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