Just ordered one. I will let you guys know my impressions on performance and sound levels. (ordered the street version catless) Thanks Andrew & Marc!

 

Most definitely Ron! Cant wait to see/hear your impressions

 

How's the drone?

 

Haven't received it yet just ordered yesterday but I will let you all know as soon as I get it on and plan to get a few vids of it too.

 

Any updates on this??

 

Why dont you go mod your S4

 

Just ordered my street system with high flow cats from Marc. Should be on vehicle by next week while getting my clutch done.
I will post pictures and video of run. I'll see how accurate the decimeter app on my iphone is and try to get measurements for all of you. Hopefully it won't be too noisy, if possible I would like it to be in the same level as my S4 with APR downpipe and exhaust system.

 

sounds good looks good

 

Got it on , new clutch also so I can do hard pull to give feedback yet. I will say the catless setup (street version) does drone a little. Stock inside cabin at 70mph cruising was 67-70db. The catless system was humming at 85-90 db in 6th gear. Waiting for the 200 cel cats to get here and will remeasure the system. Finish on the system was pretty nice. Does hang lower than stock from the xpipe configuration.

 

Any updates or video available?

 

HI,Did you ever think about going to 100 cell cats for the compromise and not to give up that much performance?

 

Sorry for the delay got this puppy on today. Here are a couple quick vids I got of it today in cabin with windows and sunroof closed. Im running the street version catless. Very quiet for a catless exhaust IMHO. The welds on this exhaust are gorgeous and its a very easy install. I will post more vids in the near future.

 

Content

 

Are there different types of mufflers that you can get?
And if so ,what are the differences between them? Cores,core size?

 

Exterior sound clip catless. The best I could do by myself.