when to install corsa

[SBMIANO]

I have 390 mi. on my 06 vert. want the corsa track system. When is it reccommended to put the exhaust on. Should I put 2.5"
or the 3". What is the difference and what is the easiest??

Thanks for the input

 

[Racer Robbie]

Anytime you want to is fine. 2-1/2" is fine for a non modified engines with stock OEM cats or 2-1/2" Hi Flow cats while 3" is a must for blown applications or if you elect to replace your factory cats with Hi flow 3" units.. Feel free to call me at 203-641-8569 to discuss in length.

Robbie
http://www.members.aol.com/AtroRacingTeam/PRODUCTS/AtRoRacingsProductCatalog

 

[DMan]

About 390 miles ago ;-)

Some guys take delivery with these mods already made at the dealership, so whenever you're ready should be good.

The 2.5 inch & 3 inch are both the same tube diameter, only dif is that the 2.5 is made to couple with the stock size cats. The 3 inch requires you to either also buy 3 inch cats or delete the second set of cats in favor of an expansion tube.

cat swapping is mostly about the sound. I found the 2.5 & keeping the stock cats loud enough for me to be happy & quiet enough for my wife to be happy. And the interior and side sills are MUCH cooler now.

I think there are 2 schools of thought on the cat size versus supercharging, Robbie posted 3 inch for a SC, I've gotten the opposite advice here, to not change to a 3 inch if I was considering a Paxton.

 

[DMan]

Oh, my 2 cents on easiest; I installed mine & thought it was pretty easy, did it on jack stands, no problems. But if I did the cats I'd have taken in to a shop, aligning the cats and getting up under where they couple is reportedly tricky just using jack stands.

 

[MikeR]

Go with the 3". Headers and aftermarket cats are all made to mate up with the 3" systems. If you never plan on changing anything else,then maybe 2.5 " is ok.

 

[Canyon707]

Let me say something about the Corsa Track and TR cats....... I can't hear a thing in my car Now when I am with my wife thats pretty cool she told me she just won't talk when we are driving ( good and bad) but it is quite a change with the crossovers removed there is a definate tone that really bothers me. So if your changing to Corsas and RT cats take a listen to someone in the club that has done it to be sure you can live with it. After speaking to a smart tech exhuast guy he told me that the reason for the exhuast crossover that do tie together in the behind the center of the rear seat is to keep that tone from occuring at certain rpm levels. He is right about this so just be aware it is a big change..

 

[Racer Robbie]

Nice post Canyon707