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Discussion Starter · #1 ·
Anyone done this yet or plan to do this? I guess first off - does anyone know the gains made from the secondary cat and muffler delete?

Secondly - Im considering doing the cat / muffler delete and adding in the Sikky headers..... I think this would warrant one hell of an exotic sound, but also may be too loud.

Just some thoughts and opinions would be great. :)
 

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I'd like to know this too. I have the secondary cats and mufflers deleted.
 

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I'm sure it would sound nasty!! the good nasty that is. but might not be the best if you have a long commute. Ears would probably be humming after a long drive. Guess it just depends if your car's a daily or not. Mufflers could always go back on if it's too much. I say why not, give it a try. Hell, I might even have to try it :)
 

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Anyone done this yet or plan to do this? I guess first off - does anyone know the gains made from the secondary cat and muffler delete?

Secondly - Im considering doing the cat / muffler delete and adding in the Sikky headers..... I think this would warrant one hell of an exotic sound, but also may be too loud.

Just some thoughts and opinions would be great. :)
The JoeZ catback exhaust adds about 22rwhp.....
 

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Discussion Starter · #5 ·
........ so what does that mean in terms of gains from 2nd cat / muffler delete? I'm more so interested in overall gains from secondary cat / muffler delete added with the Sikky headers.

I agree - I think the car would sound monstrous!! I think I may have to do this.

With the secondary cats deleted though - would this set off a CEL?
 

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It is my opinion that the stock exhaust, other than not being a true dual system, has a major restriction at the mouth of the "Y" section where it splits to go to the separate mufflers. I have attached JoeZ pictures that illustrate what I am talking about. IMHO, anyone making an exhaust mod, and not eliminating this restriction, is making a mistake.

With the secondary cats deleted though - would this set off a CEL?
The Secondary Cats have no effect on the CEL. The sensors are located before and after the primaries only. Somehow Sikky must fool the ECM, I'm not sure what they do.

Lou
 

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Discussion Starter · #7 ·
I'm planning on taking my car to a referred shop here in the city to see what they can do for a custom set up. I will definitely let them know I want new piping from front of the second cat all the way back....removing the secondary cats and mufflers. Does anyone forsee power LOSS by doing this? I would assume not since it is free-ing up the flow.....?
 

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I'm planning on taking my car to a referred shop here in the city to see what they can do for a custom set up. I will definitely let them know I want new piping from front of the second cat all the way back....removing the secondary cats and mufflers. Does anyone forsee power LOSS by doing this? I would assume not since it is free-ing up the flow.....?
Honestly, In my experience its faster than the JoeZ system. I was the first person to do the Secondary Cat/Muffler delete and have loved it! Ive raced 3 different JoeZ ISFs and have never lost to a single one. Checkout my youtube channel to see how my car runs. Trust me you wont be disappointed in your car when the mods are done. Just compare the JoeZ setup to the stock and you'll see that the power mainly comes from the cat delete.
 

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Honestly, In my experience its faster than the JoeZ system. I was the first person to do the Secondary Cat/Muffler delete and have loved it! Ive raced 3 different JoeZ ISFs and have never lost to a single one. Checkout my youtube channel to see how my car runs. Trust me you wont be disappointed in your car when the mods are done. Just compare the JoeZ setup to the stock and you'll see that the power mainly comes from the cat delete.
I really don't believe a modified stock exhaust is going to be faster and I'm certain the Joez makes a tiny bit more power with the x-pipe. The JoeZ exhaust also sounds less raspy than having the cats and mufflers removed and replaced with straight pipe.

From what I have seen Slay, is that you drive better than the average "Joe". :p
 

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I really don't it's faster and I'm certain the Joez makes a tiny bit more power with the x-pipe and it sounds less raspy than having the cats and mufflers removed. From what I have seen I just believe you drive better than the average "Joe". :p
Could be the case.:D
You won't lose pewer with either setup. Comes down to preference I guess. Can't go wrong with JoeZ IMO.from what I've seen the exhaust is high quality.
 

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Could be the case.:D
You won't lose pewer with either setup. Comes down to preference I guess. Can't go wrong with JoeZ IMO.from what I've seen the exhaust is high quality.
i agree wit cayman, i think it all comes down to the driver and Mr Slay u are an experience veteran driver my friend. love ur videos :D
 
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