Uh huh....

First video is with stock XKR rear muffler, stock cats, just XKR-S style centre pipe & a tune.


Second video is with a genuine XKR-S rear muffler, 200 cell cats, genuine XKR-S centre pipe, & a tune.


The black car was done nearly three years ago now....

 

Mine is just fine the way it is, although what I can't figure is that I get more when in dynamic mode, which is weird as I've no back box for valves to open?

Consequently my fuse 19 is still in place as figure that removing it will make no difference.

I like Ralphs expression of 'gentlemanly overrun' which is how I want to keep mine, so no sports cats or x-pipe for me!

 

So you keep running the air pump for the valves, even though you don’t have the valves?
That’s kind of silly.

 

Where are the air pumps located?

Appreciate that I bought my car this way, although was unaware of the back box delete, smaller upper pulley, H-pipe and custom intercooler at time of purchase.

 

Think its above and behind the left rear wheel.

 

Just pull fuse 19 in the fuse box behind the rear seat and forget about it.

 

Yep just been out and checked, top rearward of my passenger rear wheel...two cylinders one fatter than the other. Tubing still in place but capped off by each engine hanger.

May as well leave in situ in case me or next owner wants to revert to stock rear box