this one is true 3 inch all the way thru.... one is with resonators and other with custom made quiet mufflers...
all stainless steel, 1/2 inch flanges and Tial V bands.... 100 SS cell cats with metal matrix packing vs cheaper ceramic...






http://www.youtube.com/watch?v=YaufQJ5gF1I

http://www.youtube.com/watch?v=dkq-g4elVj4

 

switzer, EP, BBI Marksi speed tech has some cool options also

depends on power goals high power go with an X pipe design

 

the second video of the drive bys is that your quiet mufflers or not?

either way sounds great awesome job markski

 

Switzer ....sounds like a gt3 to me and the ears of many a PCA instructor. Markski's looks cool and should get a close look...I like the crossovers (GMG, UMW, now Markski, and Speedtech)...and EP is very high quality, but is stock weight. I suspect I save 20+ lbs with the Switzer.

See my videos on YouTube:

http://www.youtube.com/watch?v=z634tPX6vNM

 

My loud exhaust less cats weigh 20 lbs total as pictured.

 

I love my Switzer. It sounds amazing!

Mark did you or Bobby make this muffler or did you just put this exhaust together?

 

the loud one ( the nice pics above) without cats we did not make the mufflers... but the other one thats in the pic( not as shiny) we actually did that muffler from scratch....

the switzer is a X design.. at least the one Bobby had... just enclosed in the muffler... I like the sound as well... I know that it was not 3 inch all the way... I measured it... I did like it thou and at least its made in the USA... ( ironically the Europeans are outsourcing as well... the miltek I saw was mig welded and used 3/8 flanges vs 1/2 inch...
this is the quiet one next to the Miltek...

 

Robs car spools 300 RPM's faster w/ your exhaust than it did w/ the EP, Mark old boy.

I am tempted but I just can't give up my EP.

 

GMG WC-GT = no comparison to the rest in the sound department, TRUST ME, makes even the 997TT sound GT3'esque... Member 930 man had it on his GT2, it was unreal, sounded so mechanical like my RUF 590 exhaust, just louder and more raw!

http://www.youtube.com/watch?v=0ntUT0Z_uN8

 

For comparison, here are videos of a full 3" SpeedTech cross-flow and our SpeedTech 2.5 quiet cross-flow - both systems are available in street (100 cell tri-metal cat) or race (no cats) versions and exhibit a GT3 type sound...

FULL 3"
http://www.youtube.com/watch?v=cvxifsO-9bk



2.5 QUIET
http://www.youtube.com/watch?v=FgxMQe7KIy4

 

My conclusion is that the best option for our cars, given Switzer, UMW, GMG, Markski's 911tuning, and Speedtech all make them: crossover design (afaik all the Switzer's are the same basic design). I know of one 900hp car with a Switzer.....seems to spin to 8x00 rpm no problem in a recent thread. (KPG)

Anyway, I am happy with mine now at 1.5 years ....nuff said. Good luck team. All of these options are great. When I was looking John and Markski's solutions did not exist in crossover form... Today they are really great options. I don't know Markski's pricing, but John is fair in his pricing.

One cannot lose.

Workmanship on these is amazing.. Mine is just a thing of industrial art.

PS: In my video above, note there is an LWFW. I am barely touching the pedal to get it to rev....I have to be careful not to hit the limit...


Jeff

 

EP is great but actually I do not recommend it for 600+rwhp... Bobby choked it up a few years ago... just a thought- maybe that is your problem and not your intake...

 

mark which exhaust was on the car with the video doing the drive by's loud or quiet?

 

that was the quiet one... but that was on boost too...
Ill have a better video soon.... Rob Md has the loud one...

 

sounds great,