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E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm}


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Old Thu, Jun-13-2019, 08:10:27 PM   #1
tdott
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Default Becker Headers - Should I dyno before/after ?

So after looking at these headers for 1+ yrs, I finally made the plunge and the took the risk on these since there seems to be very little info out there. I've wanted to try full catless so this is two mods in one for me.


Got these for ~$1k on ebay. Should be here Tuesday - Thursday next week (18-20)
ebay link: https://www.ebay.com/itm/232627578439

Currently I have test pipes, ms intake, bpm stage 2 tune, cnt exhaust.
I'll be installing these myself on my lift.
I'll document the process.

Notes on the install are on my blog, there were major issues with the length @[pbonsalb](contact:111897) & @[SAMM3Y](contact:373951) called it, the end of the end pipes were too long on one side and required cutting, pictures in part 2 link below:

Update #3 Before Dyno & Video posted, see post #61 https://www.m3post.com/forums/showpo...8&postcount=61

Update #4 After Dyno & Video posted, see post #73 https://www.m3post.com/forums/showpo...3&postcount=73

Update #2 Headers have arrived.
Quality seems pretty good, header flanges look good against a straight edge no warpage. The parts of the mid section that is 3" do seem pretty big in person.

Final Update:
Conclusion, Becker Performance Headers made +15whp / +8wtq over test pipes.











Last edited by tdott; Sun, Jun-23-2019 at 03:49:59 AM.
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Old Thu, Jun-13-2019, 08:13:11 PM   #2
tdott
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Default Re: Becker Headers - Should I dyno before/after ?

Current plan for dyno's are:
1. Before Dyno: Clear adaptations drive it for a day fairly hard then dyno.
2. Fit the headers
3. After Dyno: Clear adaptions and drive it fairly hard for a day and then dyno.

Dyno in 5th gear (DCT)

Will try to do them within 1 week apart if I can, on the same tank of gas if it is possible.
I have a 20L container, I might gas up before the 1st dyno, fill the container and then add it to the tank just before the 2nd dyno.
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Old Tue, Aug-13-2019, 02:06:29 PM   #3
tdott
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Default Re: Becker Headers - Should I dyno before/after ?

Forgot to update this thread:

Results, Dyno Charts & install notes are posted on my website linked below:

Final Update:
Conclusion, Becker Performance Headers & Xpipe made +15whp / +8wtq over test pipes.
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Old Tue, Aug-13-2019, 02:08:12 PM   #4
tdott
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Default Re: Becker Headers - Should I dyno before/after ?

Here is a go pro sound clip to give you an idea of what my setup sounds like in varying driving conditions. Dyno videos are on my website linked above.

Initial start up, part throttle cruising, 2nd gear pull, parking garage rev.
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Discussing Becker Headers - Should I dyno before/after ? in the E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) Forum - {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm} at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)