Header Types Defined/Discussed + Photos of all C63 Headers and Manifolds
This is what I took off:
Stock 507 C63
What I replaced those high flowing worms with
Australian DPE equal length headers with true merge collectors, ceramic coated.
IPE and full twin 3" exhaust made 15rwhp and more noise than anyone could tolerate.
DPE with stock OEM exhaust from 2nd muffler back and cat delete made 25rwhp plus is as quiet as STOCK at normal driving, but loud under throttle. No brainer
I can get the MBH Long tubes and Mid pipes
http://www.mbhmotorsports.com/#!c63-...-headers/c1k4a
Or the American Racing Headers?
http://eurocharged.ca/products/merce...headers-detail
Or MHP Headers (cost $1000 more than the 2 above)
http://www.modernhorsepower.com/cgi-...3&keywords=all
What do you guys recommend?
can i ask where the cats are on the stock exhaust ?
Here in the UK we have an annual examination called the MOT which the car will fail if it has its catalytic converters removed, so retaining them is essential to passing the test.
I'm looking at various exhausts trying to work out which of them delete the cats and which keep them ?
I would like to keep the C63 for a few years, and that means a few emissions tests. I also like the current exhaust note, but would like it a little louder (hence my plan to remove secondary cats).
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