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I am about to purchase a new exhaust and wondering if anyone knew if there is a difference in the flow rate/horsepower gain between the Touring and Indys?
I don’t think so (I’ve had both), but why not call Corsa directly? They have a tech line and you can call or e-mail your question to them. They ought to know the answer. – C.
I don't think there is any difference. If you have a bad stock system and need
an after market replacement, go with the touring. If you want to hear your car,
go with the Indys.
I don't know about flow rate/HP differences, but I can tell you that the Tourings are quieter than my A&A modded stock exhaust was. I still like the sound, though. Also, the car feels a bit more sluggish (not a lot but it is noticeable) after replacing the A&A exhaust with the Tourings. My A4 is Powerloaded and the shifting seems less crisp after the swap. I plan on adding headers and a performance torque convter later so I'll have Steve Cole reprogram me then. That should do it.
There is no difference in the flow rate/horsepower gain between the stock, Touring, and Indy systems if the car still has cats. The cats are the flow bottleneck and anything you do after them to try to free up flow doesn't matter in terms of h/p gains. You get Corsa's for sound and appearance reasons only. Thus, go for the Indy's!
i removed 4 cats and replaced with off road x-pipe and then had corsa indys with pro tips installed last friday.my vette will now smoke the tires almost all the way through 1st gear and get sideways.before these mods my tires wouldnt even turn over 1 full rotation.powerloader is on order cant wait to see what this mod will do.my opinion is that the indys with cats removed is the best sounding on a c5.if you dont believe me the next time any of you come through north alabama give me a call i will gladly meet with you.256-355-6851 :cheers: :cheers:
I am about to purchase a new exhaust and wondering if anyone knew if there is a difference in the flow rate/horsepower gain between the Touring and Indys?