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

[Sean Roe]

Hi Everyone,

We now offer a full 3" Stainless Steel direct fit replacement catalytic converter pipe set for the 2003-2006 cars. It features a single 200 cell per inch highest flow metallic substrate cat and flex pipe. The flex pipe is an important addition to this system. Just like the factory setup, it allows the engine to move and torque over without putting that stress on fixed mount pipes. The system offers great gains over the stock pipe with two converters per side and we can couple it with reducers if a 2.5" exhaust is used farther downstream.
Utilizes original equipment style clamps and mounts. Additional 3" clamps included.

For more details, click here:

CATS : 3" Direct Replacement High Flow Metallic Substrate Catalytic Converter Set - 2003 – 2006 Viper - Exhaust Systems - Roe Racing

Priced at $699 a set.




Regards,
Sean

[Dimitrios]

thank god..no more breaking hangers like i did twice so far on my RT's. ill put in my order in a few days...

[Nader]

Sean finally a solution. How much louder is it with a Corsa? Dimitrios you maybe able to answer that for me.

Another appoint at Tators coming soon.

[pteam]

What kind of hp / tq gain come from these?

[Dustman]

What a FANTASTIC + inventive Product !

Can't wait to hear the first testimonials - I'd definitely be interested !

[Mamba55]

will it be just as good with a mopar exhaust system?

[Nader]

Sean we need more info. Help us out!

[Billy Coons]

Originally Posted by Sean Roe

Hi Everyone,

We now offer a full 3" Stainless Steel direct fit replacement catalytic converter pipe set for the 2003-2006 cars. It features a single 200 cell per inch highest flow metallic substrate cat and flex pipe. The flex pipe is an important addition to this system. Just like the factory setup, it allows the engine to move and torque over without putting that stress on fixed mount pipes. The system offers great gains over the stock pipe with two converters per side and we can couple it with reducers if a 2.5" exhaust is used farther downstream.
Utilizes original equipment style clamps and mounts. Additional 3" clamps included.

Priced at $699 a set.




Regards,
Sean

Uh-oh, a possible better alternative to Random Tech?

[Sean Roe]

For HP gains, between what we experienced on the dyno and expect in variations from one car to the next, count on 17-20 RWHP. This comes due to not only the elimination of one cat and use of a single high flow substrate, but also the 3" tubing all the way into the side sill. The factory exhaust manifold has a 3" outlet, but the stock system connected immediately to it doesn’t take advantage of this, quickly necking down to smaller than 2.5” prior to going into the cat.
For sound, the exhaust is louder. Cats are very effective mufflers J
You can couple these with any exhaust system where the original manifolds are used. Some systems will require a reducer to get down to the standard 2.5” inlet most systems use (including stock). If you use an aftermarket cat back with a 3” inlet, you’re golden.

Regards,
Sean

[Nader]

Thanks Sean. Unfortunately i have the 2.5 inch connection to my Corsa track. Will that make a big difference? Also is there any loss of torque in the mid range with these cats? Some have mentioned these smaller High flow cats clug easier. Is that possible? Is that a concern?

Originally Posted by Sean Roe

For HP gains, between what we experienced on the dyno and expect in variations from one car to the next, count on 17-20 RWHP. This comes due to not only the elimination of one cat and use of a single high flow substrate, but also the 3" tubing all the way into the side sill. The factory exhaust manifold has a 3" outlet, but the stock system connected immediately to it doesn’t take advantage of this, quickly necking down to smaller than 2.5” prior to going into the cat.
For sound, the exhaust is louder. Cats are very effective mufflers J
You can couple these with any exhaust system where the original manifolds are used. Some systems will require a reducer to get down to the standard 2.5” inlet most systems use (including stock). If you use an aftermarket cat back with a 3” inlet, you’re golden.

Regards,
Sean

[Sean Roe]

For use with a 2.5" inlet cat back, you'd need the adapters at the end.
The good news, the exhaust has cooled more by then and you're loosing a bunch of restriction.
There's no loss in mid range or low end.
As far as clogging, these aren't that small, have a very open cell structure (200 cells per inch versus a typical 400 CPI) and are the same style substrate we've been carrying the past two years.
There's no reason for concern at all. Theses are good a quality as stock and are made by an OE level manufacturer. We just lobbied them to make one better :-)

[Nader]

Thanks Sean. Last thing how much louder is it then with the stock cats and Corsa? Either way you will have my order in a week or two.

Thanks.

PS keep workingon the blower!

[Sean Roe]

In the shop, one of the guys said "it almost sounds like it has headers on it", which is a description that I think may be the most accurate.
Just sounds crisper.

And yes, my machinist and I are on the blower kit every day in some capacity. We had a lot of complaints from people about having to change the hood. I don't blame them though. 50 hoods with paint will cost about $125K and it's a little better use of economics if I spend another $10-20K on the system design, making it where that's not required. I'm trying for the umpteenth time to work out how to keep everything under the stock hood and have built manifold to do it. However, it caused other obstacles farther down the line that I'm working to overcome.

[Nader]

thanks again Sean. Cant wait to see the final product.

[pteam]

Wow 17-20 RWHP is great for still having cats! How do you guys know exactly if you have the 2.5 or 3.0 corsa? I have a corsa, is it just a 2.5 adapter on the end of a 3.0 pipe? So you can just take off the 2.5 inch adapter and have 3.0 pipes? I just bought Sean's SCT tuner should get it when I get back home from vacation, then I'll probably spring for the hi flows, having a convertible I don't want to take the plung all the way to no cats yet with the possible smell and eyes burning having a convertible.