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Tonester · 01-18-2008, 04:22 AM

Installed headers on Dec 28th, I drove the car over 200 miles and finally scheduled an appointment to get my car dyno'd at SP Engineering.

Installation was a breeze, Header lined up w/ ease. Longer studs were not needed since I purchased new OEM gaskets took about 3hours to do everything including welding the o2 simulator in and extending the o2 sensor harness.

I do not have software. Only mods are BMC filter, Streamline arm, Ebay header... EVERYTHING else is stock.

Went into dyno and the results are as follows...

My Car | 78,000 Miles | Black Ceramic coated header ordered from Ebay
Bone Stock: Max POWER= 258.8 | Max TORQUE= 229.7
BMC + Streamline arm + Ebay header: Max POWER= 279.6 | Max TORQUE= 235.4

Edzilla's car | 45,000 Miles | JVT header ordered from SP Engineering
Gruppe M intake, Gruppe M Muffler, Ebay header: Max POWER= 291.2 | Max TORQUE= 242.3

Video of Edzilla's dyno run -

Maximum gain of 24.5hp and 18.5trq at the wheels from 6500rpm-8000 rpms give or take 2-3hp.

Average gain of 20hp and 13trq at the wheels all the way through the powerband.

I could not compare my previous run from the last time I dynoed b/c I have removed my Eisen Sec2 and Eisen Race Muffler. So for most consistant comparison I overlayed it w/ my bone stock run.

So for about $250 you can have an extra 20-25 horses to the wheels. :thumbsup2::thumbsup2::shiftdriv

01-18-2008, 04:22 AM	#1
Tonester Registered User Join Date: Mar 2007 Location: So Cal Posts: 272 My Ride: 01 LSB M3 View My Garage	!! E46 M3 EBAY Header DYNO Tested !! Installed headers on Dec 28th, I drove the car over 200 miles and finally scheduled an appointment to get my car dyno'd at SP Engineering. Installation was a breeze, Header lined up w/ ease. Longer studs were not needed since I purchased new OEM gaskets took about 3hours to do everything including welding the o2 simulator in and extending the o2 sensor harness. I do not have software. Only mods are BMC filter, Streamline arm, Ebay header... EVERYTHING else is stock. Went into dyno and the results are as follows... My Car \| 78,000 Miles \| Black Ceramic coated header ordered from Ebay Bone Stock: Max POWER= 258.8 \| Max TORQUE= 229.7 BMC + Streamline arm + Ebay header: Max POWER= 279.6 \| Max TORQUE= 235.4 Edzilla's car \| 45,000 Miles \| JVT header ordered from SP Engineering Gruppe M intake, Gruppe M Muffler, Ebay header: Max POWER= 291.2 \| Max TORQUE= 242.3 Video of Edzilla's dyno run - Maximum gain of 24.5hp and 18.5trq at the wheels from 6500rpm-8000 rpms give or take 2-3hp. Average gain of 20hp and 13trq at the wheels all the way through the powerband. I could not compare my previous run from the last time I dynoed b/c I have removed my Eisen Sec2 and Eisen Race Muffler. So for most consistant comparison I overlayed it w/ my bone stock run. So for about $250 you can have an extra 20-25 horses to the wheels. :thumbsup2::thumbsup2::shiftdriv __________________ Platte Forme A.G. ESS Tuning \| Akrapovic \| JRZ Suspension Brembo \| Volk Racing \| Voltex Last edited by Tonester; 01-18-2008 at 04:40 AM.