Dyno revisit: PE+AFE Mid Pipe

jc5988 · 05-09-2014, 06:49 PM

i guess cat on N51 is really restrictive, AFE mid pipe probably best mod i can "feel" so far. very nice increase from 4200rpm and up.

RED is ESS tune + PI
Blue is above + PE and AFE Mid Pipe

Name: comparasion N51.jpg
Views: 2692
Size: 185.6 KB

Name: comparasion N51.jpg
Views: 2692
Size: 185.6 KB

SDemetris · 05-09-2014, 07:19 PM

very nice

bimmerquick43321 · 05-09-2014, 07:21 PM

wait so that's 7whp peak gain for deleting the secondary cats only? I understand it's in combination with tune/exhaust, but still

Mike. · 05-09-2014, 07:30 PM

you mean blue is all the mods? because if red is the case you lost 7 hp, anywho, nice gains and interesting how TQ stays the same

Taskmaster · 05-09-2014, 07:35 PM

Legit, but I think the tune can be tweaked for better low end performance OR a better exhaust system can be made. Good results either way.

jc5988 · 05-09-2014, 07:57 PM

Quote:

Originally Posted by Emozoo

you mean blue is all the mods? because if red is the case you lost 7 hp, anywho, nice gains and interesting how TQ stays the same

oops sorry, its reversed.

Quote:

Originally Posted by TheAxiom

Legit, but I think the tune can be tweaked for better low end performance OR a better exhaust system can be made. Good results either way.

yea, the A/F ratio was different now, just had it swapped few days ago, hopefully adaptation reset will take care of the low end. its a bit weird around 3800rpm, when it actually lost power.

Mike. · 05-09-2014, 08:05 PM

Quote:

Originally Posted by jc5988

oops sorry, its reversed.

yea, the A/F ratio was different now, just had it swapped few days ago, hopefully adaptation reset will take care of the low end. its a bit weird around 3800rpm, when it actually lost power.

see what ESS has to say, send them that dyno

edit- I was like, why is he happy?! he lost power!! haha but nice gains!!

Tim07e90 · 05-10-2014, 12:26 PM

I can vouch for the AFE mid pipe. It's a cheap mod and great power. I bought mine for $270 and was allowed to pick it up at AFE.

StealYourFace · 05-10-2014, 02:17 PM

Ive had the pe for 4the yrs, i still love the sound. Cant wait to get this to wake it up a little, im sure it screams above 4000

mlifxs · 05-10-2014, 02:20 PM

OP thanks for going to the trouble and sharing.

I wonder what the mid-pipes would do on their own? or sound like, for that matter...

are there any before / after dynos for mid-pipe only or PE only?

jc5988 · 05-10-2014, 03:17 PM

Quote:

Originally Posted by Emozoo

see what ESS has to say, send them that dyno
edit- I was like, why is he happy?! he lost power!! haha but nice gains!!

kinda interesting after compare dyno on all previous setup, the latest dyno actually has similar tq curve as stock map. bump at 2750rpm and 3800rpm has been somewat restricted.

Green line is the stock map flashed right on dyno the same day, so it did not have much time to adapt back down from the blue line with ESS tune+PI. blue was dyno'd first then green.

ESS told me AF ratio still with in the range, so im gonna have the adaptation reset and see how it goes.

jc5988 · 05-10-2014, 03:28 PM

Quote:

Originally Posted by StealYourFace

Ive had the pe for 4the yrs, i still love the sound. Cant wait to get this to wake it up a little, im sure it screams above 4000

not just a lil, it VERY noticeably loud now with window down with lots of overun bursting. still aceptable drive slow and no drone.

Quote:

Originally Posted by mlifxs

OP thanks for going to the trouble and sharing.

I wonder what the mid-pipes would do on their own? or sound like, for that matter...

are there any before / after dynos for mid-pipe only or PE only?

I think for secondary is more restrictive then stock muffler, so you should see part of gain if you just swap the mid pipe. sound should also be louder.

so you should get the mid pipe first if budget not allowed, then the muffler or even muffler delete. but its gonna be VERY loud without any muffler + mid pipe.

Mike. · 05-10-2014, 05:02 PM

I cant wait to get my secondaries out tuesday!!! (hopefully)

OP, now you need to to a charcoal delete and a ram air intake along with new headers

and you will have a moderately "quick" 328i

Takeshi · 05-10-2014, 06:24 PM

Quote:

Originally Posted by jc5988

not just a lil, it VERY noticeably loud now with window down with lots of overun bursting. still aceptable drive slow and no drone.

hmm this is tempting

But I already have secondary cats removed. I wonder if I can still get an increase in sound just from the additional mandrel bent piping. I would imagine I would get a slight increase in horsepower with the smoother piping but I wonder if I can hear the difference through my magnaflow catback. The Magnaflow is probably the most quiet catback system for the N52. I didn't hear that much difference when I did the secondary cat delete on its own.

05-09-2014, 06:49 PM	#1
jc5988 Captain 91 Rep 611 Posts Drives: 2010 328i 6MT Join Date: Aug 2011 Location: Los Angeles iTrader: (0)	Dyno revisit: PE+AFE Mid Pipe i guess cat on N51 is really restrictive, AFE mid pipe probably best mod i can "feel" so far. very nice increase from 4200rpm and up. RED is ESS tune + PI Blue is above + PE and AFE Mid Pipe __________________ N51- PI - PE - ESS Tuned - SSK - CDV Delete - AFE Header - B12 - Mfactory LSD Last edited by jc5988; 05-09-2014 at 07:42 PM..
	Appreciate 0 Tweet Quote

05-09-2014, 07:19 PM	#2
SDemetris FSAE Dude 62 Rep 759 Posts Drives: E90 328xi Join Date: Jul 2012 Location: Pittsburgh, PA iTrader: (0)	very nice __________________ 2007 TiAg 328xi: AA Tune, AFE intake, Full exhaust, 335xi Brakes, H&R RSB, UUC FSB, H&R Sports, Billy Sports...BBS SR 17x8 1985 Gazelle Beige 325e: Poly everything, e24 3.25 LSD, 225 lb weight reduction, Corbeau FX1, Shifter machined by me, roll bar, harness, all the other goodies. My "Racecar"...15x7 BBS RA
	Appreciate 0 Quote

05-09-2014, 07:21 PM	#3
bimmerquick43321 Lieutenant 81 Rep 525 Posts Drives: e90 330i Join Date: Feb 2013 Location: Montreal, Canada iTrader: (0)	wait so that's 7whp peak gain for deleting the secondary cats only? I understand it's in combination with tune/exhaust, but still
	Appreciate 0 Quote

05-09-2014, 07:30 PM	#4
Mike. Mike: Everyone's Pal 2044 Rep 2,972 Posts Drives: F80 M3 Join Date: May 2013 Location: Eastern Long Island iTrader: (5) Garage List 2013 BMW 335xi [10.00]	you mean blue is all the mods? because if red is the case you lost 7 hp, anywho, nice gains and interesting how TQ stays the same __________________ Alpine MSS Stage 2+ E30 tune\|MST Intakes\|VRSF Single Mid Pipe\|Agency Power Intercooler\|VTT Full solution crank hub fix
	Appreciate 0 Quote

05-09-2014, 07:35 PM	#5
Taskmaster Banned 2465 Rep 9,004 Posts Drives: M235i 6MT / E92 328 Msport 6MT Join Date: Nov 2013 Location: Florida iTrader: (6)	Legit, but I think the tune can be tweaked for better low end performance OR a better exhaust system can be made. Good results either way.
	Appreciate 0 Quote

05-10-2014, 12:26 PM	#8
Tim07e90 Captain 130 Rep 775 Posts Drives: 2007 E90 328i Join Date: Mar 2012 Location: SoCal iTrader: (4) Garage List 2007 BMW 328i [8.50]	I can vouch for the AFE mid pipe. It's a cheap mod and great power. I bought mine for $270 and was allowed to pick it up at AFE. __________________ Performance Mods: ST Coilovers \| R1 Concepts Premier Rotors w/Hawk HPS Pads \| ECS Stainless Steel Brake Lines \| OEM 219M Wheels \| Bridgestone Potenza RE760 \| Precision Euro Spacers \| AA Race Headers \| AFE Race Midpipes \| Remus Powersound Quad Exhaust \| AA Offroad Tune \| RevMotoring Intake Pipe \| Cyba Scoops
	Appreciate 0 Quote

05-10-2014, 02:17 PM	#9
StealYourFace Lieutenant Colonel 261 Rep 1,794 Posts Drives: F30 328i M 6mt, E36 M3 Join Date: Jul 2009 Location: Shakedown Street, Buffalo NY iTrader: (1)	Ive had the pe for 4the yrs, i still love the sound. Cant wait to get this to wake it up a little, im sure it screams above 4000
	Appreciate 0 Quote

05-10-2014, 02:20 PM	#10
mlifxs Diamond Geezer 212 Rep 2,385 Posts Drives: Jet Black 2007 328i Saloon Join Date: Nov 2007 Location: Florida iTrader: (6) Garage List 2016 VW Golf Sportw ... [10.00]	OP thanks for going to the trouble and sharing. I wonder what the mid-pipes would do on their own? or sound like, for that matter... are there any before / after dynos for mid-pipe only or PE only?
	Appreciate 0 Quote

05-10-2014, 05:02 PM	#13
Mike. Mike: Everyone's Pal 2044 Rep 2,972 Posts Drives: F80 M3 Join Date: May 2013 Location: Eastern Long Island iTrader: (5) Garage List 2013 BMW 335xi [10.00]	I cant wait to get my secondaries out tuesday!!! (hopefully) OP, now you need to to a charcoal delete and a ram air intake along with new headers and you will have a moderately "quick" 328i __________________ Alpine MSS Stage 2+ E30 tune\|MST Intakes\|VRSF Single Mid Pipe\|Agency Power Intercooler\|VTT Full solution crank hub fix
	Appreciate 0 Quote