Originally Posted by my65cuda
HDDP, can you add more to this?
I talked with Kleemann about making some headers. First off, SUPER nice people. If I hadn't told Renntech I was getting their computer and pulley, I would have gotten it from Kleemann. Anyway, they said they would build a set of headers, but they'd be expensive as hell and no clue how much performance gain you'd see. They'd also need a donor car and would want to do it during the winter when things slow down a bit for them. He said the cost would be around 3k a set. I assume most aren't willing to pay that, especially when limited to the SRT-6.
I'm throwing the car up in the air today to get a look see. Hopefully I can figure out something. I want to make a true duel exhaust and get rids of these cats. Does anybody make o2 sensors for our computer? I emailed Kleenman about programming the computer to not throw the code, if that was possible
. We'll see if they get to me over the weekend. Has anybody put high flow cats on their car yet?
Kleeman's price is about right for a custom header, the set I have on order (pending $) is going to cost me $2,700. I had Burns Stainless do a flow analysis on the engine to determine the optimum design for the N/A Crossfire. Obviously doesn't equate to the SRT. But the OEM headers and exhaust system are VERY restrictive. I would guess a good set would boost hp by about 5-7 hp.
Still haven't found anyone who has an 02 sensor bypass. And that does pose a problem if you start messing with the cats. Mine have been removed completely and i believe the sensors are trying to dial back the fuel mixture and leaning out the car.
Either way, I think your best bet is to clean-up the airflow on this car, intake and exhaust.