Who is running testpipes and do they increase HP?

GT3fan · 10-31-2018, 10:08 AM

Did you really feel any horsepower increase via the butt dyno? Have you run a roll on comparison with a stock m3?

I think my car feels slightly peppier, but could be due to the accompanying stage 2 tune. Or maybe the extra noise is producing a placebo effect?

In real world acceleration would it even reduce a quarter mile run by a 1/10th of a second?

Thoughts?

wfdeacon88 · 10-31-2018, 11:39 AM

I've read on here, and seen the dynos posted, showing that TP+stage 2 is the most tangible way to increase HP and Torque on this engine without a SC. I am going to go this route, so I have bee researching and most here that have posted say that this combination has a large impact.

redline9001 · 10-31-2018, 10:43 PM

I have an ESS tune and full Arka exhaust and I can easily put many cars lengths on a stock car

Mvy · 11-01-2018, 04:02 AM

I believe you get around 25 hp out of this change. You should check out http://s65dynos.com/ and you can check different configs dyno results and make a call.

M3 Number 86 · 11-01-2018, 05:16 PM

i didn't even get a tune and test pipe gave me 10whp on the dyno....

10-31-2018, 10:08 AM	#1
GT3fan First Lieutenant 239 Rep 356 Posts Drives: e90m Join Date: Dec 2016 Location: North Bay CA iTrader: (0)	Who is running testpipes and do they increase HP? Did you really feel any horsepower increase via the butt dyno? Have you run a roll on comparison with a stock m3? I think my car feels slightly peppier, but could be due to the accompanying stage 2 tune. Or maybe the extra noise is producing a placebo effect? In real world acceleration would it even reduce a quarter mile run by a 1/10th of a second? Thoughts? Last edited by GT3fan; 10-31-2018 at 10:14 AM..
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10-31-2018, 11:39 AM	#2
wfdeacon88 Major 1105 Rep 1,389 Posts Drives: E90 M3 Join Date: Sep 2018 Location: Triad, NC iTrader: (0)	I've read on here, and seen the dynos posted, showing that TP+stage 2 is the most tangible way to increase HP and Torque on this engine without a SC. I am going to go this route, so I have bee researching and most here that have posted say that this combination has a large impact.
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10-31-2018, 10:43 PM	#3
redline9001 Captain 223 Rep 979 Posts Drives: E92 M3, F15 X5, G14 F150 Join Date: Apr 2011 Location: Calgary, Canada iTrader: (0)	I have an ESS tune and full Arka exhaust and I can easily put many cars lengths on a stock car __________________ 2011 E92 M3 \| JEREZ BLACK \| EXTENDED BAMBOO NOVILLO \| EXECUTIVE PKG \| M-DRIVE \| EDC \| M-DCT MODS \| KW S/O \| HRE P40SC \| Akra Evo \|ESS Akra Tune \| ESS DCT tune \| BMC drop in \| StopTech Trophies \| TMS Pulley \| LUX V3 \| BE Bearings and BE ARP rod bolts
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11-01-2018, 04:02 AM	#4
Mvy Captain 541 Rep 979 Posts Drives: 2008 E93 M3 Join Date: Nov 2014 Location: GA Peach iTrader: (0)	I believe you get around 25 hp out of this change. You should check out http://s65dynos.com/ and you can check different configs dyno results and make a call. __________________ Harrop Supercharger, BPM Tune, K/W Coil over kit, Stoptek BBK, Magnaflow exhaust, ear to ear grin everytime I drive...
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11-01-2018, 05:16 PM	#5
M3 Number 86 Major General 3221 Rep 6,218 Posts Drives: black m3 Join Date: Mar 2015 Location: pasadena iTrader: (1)	i didn't even get a tune and test pipe gave me 10whp on the dyno.... __________________ dadmobile IG: @M3number86 youtube: track vids
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