i have the magnaflow cat back on my 05 v and planning to get the kooks lt headers and had some questions. do i need to get the kooks high flow cats or the off road pipes to make it work or will the headers bolt on to the the cat back, if so what do i do with the extra o2 sensors can i just leave them unplug or can a muffler shop make me the holes to plug them in thx in advance
I have the same setup and unfortunately the magnaflow doesn't directly up to the kooks headers. Doesn't matter if your using the off road connectors or high flow cats. I took my to a performance shop for the work.
yes, you need to have custom made connector pipes made that go from the headers to the magnaflow catback. doesnt matter if you have cats or not you still have to have the connectors made. kooks only offers the connectors for factory catbacks or corsa.
so can I use the the cooks factory connectors to go to the magnaflow and have a shop put them on, or is custom connectors the only way. I thought the magnaflow cat back was similar to the factory
If your going cat less then I would recommend getting the kooks connectors. The nice thing is that they have the good quality flanges needed to connect to the long tubes (See pictures above). Then you just need a little fab work from the connectors to the X-Pipe as others have said.
I thought about just having the connectors made from a performance shop but for the $200 from kooks it was worth it.
I have some kooks longtubes and high flow cats that I just had freshly ceramic coated and polished that I am selling. Haven't bolted them on a car since they were coated, just sittin in the garage. Pm me if interested.....
2006 Silverado SS
Corsa, C6 Z06 front/rear brake conv, belltech 2/4, motoforge 22's, a lot of wolfgang fuzion.
2005 Cadillac Cts V
CCWs, kooks, corsa, volant, PSI's to come.....