M54/m52tu headers

[sajk]

Hi guys,

Thinking about doing this. Our cars don't have the cats in the manifold like in the states. So is it worth it and does anyone have dyno data on any improvement.

Thanks

 

[sajk]

So nobody with an e46 done headers that showed any dyno proven gains or just nobody with an e46 fited headers.

 

[KarshS]

I did m3 headers (Equal length i think you call them) on my m50 and it definitely feels so much better. no Dyno to prove though.

 

[individj]

a few people have done the manis....nobody bothered to dyno their butt dynos as well as the fact that many of the cars were around 200 000km with those cat manis were enough to tell them it was the right move.