740 turbo stainless system

[Dirty Rooster]

I finally got the time to get down the garage and try this system.
FITS!
I need to make a gasket for the back pipe joint,
and my downpipe really wants a support bracket
but for now it's on and making surprisingly little noise.

[Ml 1990 740 turbo]

Does it go any better without the cat on?

[Dirty Rooster]

To be honest I just drove it home and never gave it any beans.
On-boost it kind of 'sings' so the sound has changed but it feels about normal off-boost and with minimal turbo and up to 4000 gentle revs.
I'll shake it down next trip : feel like a right boy-racer.

I'll have to put a big red reminder on my calendar a month before the MOT : put old CAT back on!

[Dirty Rooster]

Update.
I just finished the first full 10-gallons with the stainless system on instead of ancient CAT and single middlebox.
No change to mpg : still a respectable 29-30mpg.

Sound is gnarly and then at 4000 revs becomes LOUD.
I feel like I've lost some low rev torque : the restrictive old system may have helped there.
Higher revs are freer, don't know about power. Car feels the same speed but this is totally stock 13c

On-boost there's a rather nice whistle coming from under my feet.

[Ml 1990 740 turbo]

Sweet! Get the boost turned up!