speedracer
Member
These are excellent quality mandrel bend, equal length primary tubes. Thick exhaust flanges. Exhaust gaskets, and down pipe extensions included $550 plus shipping.
I think it's 1 3/8" for stock to mild mod.Depends on the size of the primary tubes. I believe 1 5/8" are correct for a stock to mildly modified motor
Thanks, but I do not follow.And 1 3/8 is 35mm
great
oh sorry i was commenting the stevehose postThanks, but I do not follow.
Where does the 35mm fit in: Ingoing pipe: 43X32MM.
Regards, Alberto
I think it's 1 3/8" for stock to mild mod.
that depends on who you ask ... it also depends on what your engine is. Stahl is a long tube and the Schmiedman is a short tube setup. in my conversations with Jere Stahl, the long tube generally gives you more torque and the test numbers from Korman back in the day support the data. Stahl was the proponent of the long tube, while Alpina and others went with the short tube design. which is truly better? i do not know as i bought into the Korman based methodology decades ago and have been happy with the result. your mileage may vary ...Are they better performing than the Stahl set up?
Regards, Alberto
Schmiedman is a quality company based on experience with other BMW models.
fyi - i have stahl 1 3/8" headers for a euro b34 engine with approx. 240 hp. that is also what Korman recommends. keep in mind that the pipe diameter (1 3/8") is for the primary tube, NOT the collector or connection to the exhaust. 1 3/8" is approx 35 mm. so the 32 mm primary tube is equivalent to 1 1/4" ... which is only applicable for a stock build.