Sorry for this simple question, but I've searched and searched but can't seem to find the answer. So basically, if I have an Invidia N1 cat-back, can I add an Invidia DP and still run the stock cat?

I would likely upgrade to a hi-flow cat later.. I'm just trying to spread out the expenses a bit. And on that note, will a Buschur hi-flow cat work for me with this Invidia system?

Thanks so much,

Rob

 

I've asked this question before. basically you would still get a bottle neck on your stock cat. The gains will be minimal with an aftermarket dp. I guess if you will be getting a testpipe or a highflow cat in the future then it will be worth it... but a dp and catback with stock cat will have very minimal if not, no gains at all with the stock cat.

 

I understand that there will be a bottleneck at the stock cat. But you're saying that it will physically fit and bolt up?

 

I just put on my catless pipe after adding both DP & cat-back invidia, going from stock cat with both dp and cat-back was sic.
I don't think I'll never go back to cat with this setup...

I defintly feels like it was holding back with the stock cat, but now it pulls even harder and is way better up on the top end. +1 shoots flames

 

Evo_Bill: is it super loud with the cat-less setup?

 

its load in low rpm's like is 2g ish range.. once you hit like 3g it's soft again, like if you had a stock cat.

 

Yes, it should mate up properly, the bolts will line up correctly.

 

Thanks!