what is the difference between the 2 Performance Exhaust systems other than the price?

and I did search couldn't find anything on about thesis 4 exhaust


http://www.crateenginedepot.com/stor...tems-C146.aspx

 

the sport is louder than the touring...i dont think there are too many with the touring. I have seen some ppl that have it on order. I have the GMPP Sport on my redline and love the sound. its deep without any raspiness AT ALL. Its 2.25" piping, tho. but i did get 8-10whp with the Exh. and the K&N CAI...( i have the dyno charts also...)

 

not what i was pointing out. their are 2 touring exhaust and 2 performance exhaust

scroll down and look at the 2 on the bottom

 

Those are not all GMPP exhaust. The two at the top are GM parts. The bottom two are Corsa exhaust and I belive a wider pipe. Hope this help you out.

 

One set of exhaust systems is a general motors manufactured product. The other set of exhaust is manufactured by Corsa. That is the difference. Now GM manufactured their own exhaust system, but Corsa designed it. That is about all for the differences. Oh.....and price. Big difference in price.

 

any one know the performance gains on the 2 different Performance Exhaust systems?

 

i believe you can expect about 12 horsepower (give or take a couple) with either exhaust...the performance between the two is the same...it just depends on the sound you want.