m20 street build : part deux
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One thing about headers is it can be difficult to drop the gearbox out89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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I had a single 2.5 high flow cat into a hooker header muffler in the back. GAWD I loved the way that car sounded.
Id try and get the 02 sensor in the X or "Y" Pipe. Maybe some room above, it.Comment
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Ohh this literally might be the headers I got off eBay then. They look the same. The end of the x pipe just ends up like and inch or so closer to the ground than it needs to be. I bet the super sprint fit a little better. One of these companies needs to make a good set of m20 headers there seems to be demand. Or I just need to stop being cheap and do the full super sprint exhaust from the header to the muffler. It just gets close to the price I paid for my whole stroker build.Last edited by kyleconstantine; 12-05-2023, 11:49 PM.Comment
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89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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1987 - 325i Convertible Delphin Auto [SOLD], 325i Convertible Delphin Manual [SOLD]
1989 - 325i Convertible Bronzit m30b35 swapped [SCRAPPED], 325i Sedan Alpine Auto[DD]
1991 - 325i Coupe Laguna Manual [Project], 535i Sedan Alpine [SCRAPPED]Comment
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Headers, starter bolts, time on my back ba standing upright, bench pressing the trans back in place, 3' of extensions and swivels. Maybe if I had a lift or a trans jack I'd change my mind but I can have the m20 out in a couple hours at this point.Comment
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You know McGyver you mentioned headers and passing smog today and it got me thinking. Is the reason no one is making headers because the EPA is coming after these companies?
89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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To make them legal in CA, they need to pass a bunch of tests to get an EO number stating they are BAR compliant. It really comes down to a money thing, how many people are willing to pay for headers, so how long would it take to get a return on the investment for all the testing. Plus, the cost would be passed on to the consumer. So how many people are willing to spend $1k for headers when something similar is on ebay for $200?
It IS possible. Look at Dinan and their tuned ECUs for newer cars. They are legal and a SLIGHT improvement over the factory MPPK upgrade.sigpic
1987 - 325i Convertible Delphin Auto [SOLD], 325i Convertible Delphin Manual [SOLD]
1989 - 325i Convertible Bronzit m30b35 swapped [SCRAPPED], 325i Sedan Alpine Auto[DD]
1991 - 325i Coupe Laguna Manual [Project], 535i Sedan Alpine [SCRAPPED]Comment
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It really comes down to a money thing, how many people are willing to pay for headers, so how long would it take to get a return on the investment for all the testing. Plus, the cost would be passed on to the consumer. So how many people are willing to spend $1k for headers when something similar is on ebay for $200?
it's about supply and demand. companies like IE and supersprint don't bother to do a run of product until such time they know there is enough demand for a quality product. 10 - 15 years ago there were dozens and dozens of vendors with good brand name quality stock. at that time a pile of folk were buying and modding cheap e30's. now there are no cheap e30's to mod and the boy racers have all moved on to other platforms. the demand has fallen to near zero.
you'll probably see a few new decent headers at higher prices from time to time. they haven't gotten rid of the tooling or jigs to make them. in the meantime, they won't give a shit about competing with cheap asses who just want cheap junk for show.
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Here is a DINAN intake for a 2014 mini cooper that is NOT legal anywhere, here is one by K&N that has an EO number. Dinan has an f30 tune that is 49 state legal, and they are working for an EO number. When I was working as a mechanic in CA, I had a customer bring in a car to take off a K&N pod filter and replace it with another filter setup that had the EO sticker. It's wild.
nothing similar is on ebay for $200 dollars. hats off to you if you can get one of those nightmare products to fit and work.
it's about supply and demand. companies like IE and supersprint don't bother to do a run of product until such time they know there is enough demand for a quality product. 10 - 15 years ago there were dozens and dozens of vendors with good brand name quality stock. at that time a pile of folk were buying and modding cheap e30's. now there are no cheap e30's to mod and the boy racers have all moved on to other platforms. the demand has fallen to near zero.
you'll probably see a few new decent headers at higher prices from time to time. they haven't gotten rid of the tooling or jigs to make them. in the meantime, they won't give a shit about competing with cheap asses who just want cheap junk for show.
sigpic
1987 - 325i Convertible Delphin Auto [SOLD], 325i Convertible Delphin Manual [SOLD]
1989 - 325i Convertible Bronzit m30b35 swapped [SCRAPPED], 325i Sedan Alpine Auto[DD]
1991 - 325i Coupe Laguna Manual [Project], 535i Sedan Alpine [SCRAPPED]Comment
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