Exhaust headers

[RoulerCo]

Hello 👋 

 

can anyone help me find out if exhaust header outlet sizes are the same size on a 1600/2 as they are on a 2002? 
 

I found a performance stainless exhaust I really like the look of. The store owner said it will fit ‘e10 engines’ fine. but I don’t know if it will actually fit my car due to it not being a 2002, but a 1600/2.

 

I just want to make sure bolts and everything will line up and it will fit. Exhaust ain’t cheap and I don’t want to get it wrong 😄

 

BMW 2002 Race 4-2-1 42-51-63,5mm Stainless

MARTELIUS.COM

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Racing-spec 4-2-1 style manifold. Pipe diameters: 42 - 50.8mm. Outlet size 63,5mm.  Material stainless...

 

Thanks in advance 

 

Dan 

[02Pilot]

Those are huge pipe diameters for a stock 2002, let alone a 1600. You'll lose a lot of exhaust velocity, and thus torque in the bottom two-thirds of the rev range. It's a race exhaust for a reason.

[Son of Marty]

It will physically fit on your engine, but as above you'd be better off with a smaller tube header, or if your engine is more or less stock just stay with the factory header.

[markmac]

What 02Pilot said......the pipe coming out of the collector on my 'race' header is as I recall 62mm + (a little), and that is attached to a 270bhp Schnitzer twin cam 16v motor.  You would do well with some other.....maybe even a tii manifold with modified downpipe.  Here are a couple of pictures of the FIA homologated downpipes for Gr 1 2002tii's

[RoulerCo]

26 minutes ago, 02Pilot said:

Those are huge pipe diameters for a stock 2002, let alone a 1600. You'll lose a lot of exhaust velocity, and thus torque in the bottom two-thirds of the rev range. It's a race exhaust for a reason.

Thanks, that’s really helpful to know 👍

I’d like to upgrade to stainless. Possibly just for the longevity aspect but I’m also just after deeper exhaust notes really. Are there any alternatives I could consider? 🙂

 

 

 

[markmac]

Center Resonator and Muffler ....... choice is likely going to get you where you want to go.  More than a few can answer better than I.

[TobyB]

Yup- bigger center resonator.

But a 1600 needs to spin to make power, so 'deeper'

is always going to be relative.

t

usually settles for 'doesn't get tagged for sound'.

[north1602]

1600 has smaller exhaust ports on the head than 2002