https://www.youtube.com/watch?v=C8EZ...ature=youtu.be

 

Absolutely sick. How's the noise during driving? Is there an added loud drone?

 

Barely any drone what so ever. Its a very free flowing exhaust system.

 

Heres a video of my car on the dyno today:

https://www.youtube.com/watch?v=mpma...ature=youtu.be

 

Sounds mean as hell! How much louder is inside the XJ?

 

Sounds excellent! Too bad they hit the kickdown switch haha.

Looking forward to seeing the numbers!

 

Just a nice hum at 70 mph. There is little to no drone.

 

Car was spinning on the Dino and also the guy dynoing kept hitting the lockdown switch. Still made 500whp and 490 tq to the wheels on a dynojet.

 

Sounds great.

Bonus points for the lacrosse stick.

 

Had my pair installed today via NYJagparts. As of now the only mod on the car, hopefully to be joined shortly by an exhaust and ECU tune. The sound at higher RPM's is intoxicating. Need more open road to fully try it out!

 

Sounds awesome, and thanks very much for your business!

If we can set you up with a tune that would be awesome, we have hand-held programmers that store multiple modified files:
Jaguar/Landrover Denso ECU 5.0 Supercharger Pulley + ECU Tune

 

Thanks Stuart! I wish I had the supercharge but the standard V8 is plenty for me as of now. Would very much like to tune it when I can.

As a side note, I got some CEL codes that popped up after a little ride today. A P219B as a current fault and a P219A as a pending fault. This was after 50ish miles after the cats were put on. my GF noted she smelled "exhaust" or some fumes, so I'll keep an eye on this and see if it comes up again, and if it does see if there's a leak or something somewhere.

 

When I was installing mine, they had to redo the installation because the flanges were not completely aligned and it was leaking. Proper alignment of those bottlenecks are key to the installation. What were the code descriptions?

 

Perhaps SovietKitsch can comment, but following your feedback we revised the bell-section on the end of the cat to allow more overlap so hopefully the install was a lot smoother.

 

The codes that were popping was P219A, P219B, and P2096 which is a Post Catalyst fuel trim system too lean on bank 1.

I brought it back to the install shop who said the codes are due to the cats and there was nothing they found wrong with it, although I'll probably have it checked at a close friends shop in a few days.

I really don't want to go around popping this CEL every 50 miles, so I hope it goes away/relearns the new cats/my friend can find something the install shop didn't.

 

Sounds like an exhaust leak?

 

My assumption as well, although the first shop that took a look at it said no. We shall see when I can get it down to my friend who I trust fully with the car who I know can take a thorough look at it.

 

If it is on one side only, not both banks... plus Johncy's car didn't have this issue. Also they are not the normal codes you would see for actual lean codes. I've seen sport cats throw a variety of codes on cars, like cat efficiency, sensor response rate or temperature, but never these ones. Seems like air leak.

 

Some months ago Jag had an update for O2 sensor heat/timing and, according to my tech, has resulted in some codes being thrown on some XJs and that it was better to not have had the update. In my case, for some reason, my XJ won't take the update and we think that was a good thing. Just an observation as to, maybe, why Johncy had no issue and SovietKitch did get codes thrown.

 

I too have been working with VelocityAP on Exhaust and Tune for my 2011 XF SC.

It's an absolute blast to drive with Stuart's full performance set up. Sport Cats, Mufflers, Pulley and Tune. We made 75 extra HP.
The P219A and P219B codes are "Engine Overspeed Condition - signal invalid"

you need to stay of off the throttle....Ha Ha .