New! Direct Fit High Flow Metallic Substrate Cat Assembly w/ Flex Pipe for 2003-2006!

[Sean Roe]

Most of the aftermarket cat-backs are designed to slip onto the existing cat outlet (2.5").
On the Gen2, only Corsa and B&B offer an option (with Corsa, you choose 2.5" or 3" inlet, B&B is 3"inlet with a reducer supplied).
Chances are, your Corsa is a 2.5" inlet with perhaps a 3" muffler behind it. In any event, a simple adapter, or cut off the 2.5" and weld a 3" stub will make the union. A local muffler shop could supply either quickly. We have the 3" to 2.5" adapters as well if you don't want to make your muffler inlet 3".

Regards,
Sean

[Nader]

Sean are there any real benefits to cutting off the 2.5 inch adapter and welding in a 3inch? Is it worth the trouble in your opinion?

Originally Posted by Sean Roe

Most of the aftermarket cat-backs are designed to slip onto the existing cat outlet (2.5").
On the Gen2, only Corsa and B&B offer an option (with Corsa, you choose 2.5" or 3" inlet, B&B is 3"inlet with a reducer supplied).
Chances are, your Corsa is a 2.5" inlet with perhaps a 3" muffler behind it. In any event, a simple adapter, or cut off the 2.5" and weld a 3" stub will make the union. A local muffler shop could supply either quickly. We have the 3" to 2.5" adapters as well if you don't want to make your muffler inlet 3".

Regards,
Sean

[Sean Roe]

Cutting off a 2.5" adapter and going straight 3" at that union......the only area you'd see a gain would be the above about 4,500 RPM. From that point, the graphs would begin to split slightly, with the difference being around 5 HP at 5,600 (based on Gen 2 experience).

[N2 Vipers]

Sean, will this fit on an 08? If not do you have anything that will?

[Dimitrios]

i just placed an order on 2 pairs! one for me and one for my buddy

BTW my RTs got clogged on a stock srt motor and had hangers break off two different times.

Hey Sean i was told the flex is a restriction by the competitors. i rather have a bit of a restriction than hangers keep breaking every other month.

thanks for putting these out
DK

[Sean Roe]

Thanks for the order D.
It doesn't surprise me for a vendor who doesn't have the flex say that it's a restriction. Even if it was, you're still getting the HP gain and won't have to worry about the hangers or mufflers breaking because of the motor torquing over.


We have not tried fitting them on an '08.

[Nader]

Just ordered mine as well. Thanks Sean.

[Sean Roe]

Thanks for the order Nader
The new pipes and your SCT are heading up ASAP (I programmed your SCT today).

[Dimitrios]

dang nader..you dont waste time!!

[Nader]

After seeing yours on the dyno, it is obvious i am missing some decent gains from a good tune and high flow cats. Keep in mind you beat me to the order however I beat you to the install at Tators! I am up first.

MUST HAVE MORE HORSEPOWER...

Originally Posted by Dimitrios

dang nader..you dont waste time!!

[Hans Christian]

Nadar, can I ask you to report on how laud it is compared to your current setup which is similar to mine except I have the Paxton

[Racer Robbie]

Sean,

You can bet the next time I build an exhaust system for a customer, and he wants to replace the factory cats, I will be calling you. The RT Cats are junk and they do not want to fix their problem as it seems to me that you have done. I wish you the best and I hope you put RT out of the viper business. My guess is we will see a flex connector on their cats very soon.

[N2 Vipers]

Come on Sean, try to fit one on an 08!

[Sean Roe]

Here's a picture of the inside of the flex:
Note that it does not decrease the inside diameter....

[Dimitrios]

like i said before. i rather have a bit of a restriction if any than breaking hangers every other month on those RTs. even tho they warranty them i still have to lay out $300 in labor costs every time which they dont pay for..looking forward to my set.