[MAGAUSA]

Originally Posted by Camaro 79

Which Borla Mid Pipe did you go with? I'm looking at keeping the stock mufflers and exhaust system, but just want a bit more volume and aggression.

https://www.borla.com/products/camar...rt__60606.html


And it says it's been discontinued.

[oldman]

Originally Posted by GermanMuscle

Would you invest in the mid pipe with mufflers (touring resonator) or just do headers and CAI? Is the other stuff really worth it? Just looking for performance with a Supercharger in the long run, don't really care about the sound since it sounds better than 99% of the cars on the road either way.

If you have an M6, you really can't just do headers (because you will be deleting all 4 cats), the headers must either have cats or something like a Borla midpipe to be drivable. Or you going to have to learn never to baby the engine, no short shifting ever. You need to keep it in 5th till 67 MPH. The cats were the BEST mod I did to the car, it made the car near stock in drivability.

I also way back when the 6th gen first came out had CA front cat deletes. the low speed drivability was not as bad as headers, but there was a strange exhaust resonance at 1200 RPM or so, so I think 6th gear was more usable but not great say 62 MPH or so.

I lived with no cats for 2 years, the car is SO much better of a street car with cats. I would never go back. I had always intended installing the high flow cats or cutting and welding back in the stock back two cats.

Autos don't see to have any issue at all.

.it is the 608 that has mufflers in it BTW. https://www.jegs.com/InstallationIns.../157-60608.pdf

called a "touring resonator"

[Camaro 79]

Originally Posted by MAGAUSA

https://www.borla.com/products/camar...rt__60606.html


And it says it's been discontinued.

Ah that's too bad. I wonder why. Do you know of any other alternatives?

[jcastag]

I am going with the Stainless Works axle back and AFM and NPP for $1700 shipped. I wanted to keep both functions of the exhaust, but could not justify spending any more than that.

I hope the drone is not as bad as people say, but I have heard its not bad at all on the A8 for some reason.

[oldman]

probably the AFM. Also depends on the street speed, most county roads here are 65 MPH, so with no cats I had to get to 67 MPH to use 6th gear, as soon as I dropped below that I had to use 5th... Probably people on an auto don't even notice, but on a manual you have to shift. The AFM must also be effective too. I lived with it for 2 years, but with cats it is near stock in drivability. I could have put small bullets in my original Kooks cat delete pipes. But plan to put cutouts in them now that the cats have solved all drivability issues and cutouts is going to let the street scene the Oldman is all business....

I had stainless steel works on my Challenger. Nice stuff.

[biker2k]

I'm doing stainless works... 1 7/8 into their 3" x pipe with cats this system ties into stock npp...

we will see but I think this might be the best solution for drone / power / driveability

[RobbyBeefcake87]

Originally Posted by oldman

We are talking either all delete or primary cat delete. It does not work cause the engine does not run between idle and 1200 hundred RPM or so, as an example you can't use 6th gear to 67 MPH, 5th is like 55 MPH, stock or with primary cats, 6th can be had at 52 ish, 5th at dunno say 45 MPH... nuff said.

You don't get into 5th until 45 mph stock? I agree with 6th, usually around 50.

[oldman]

dunno, what the minimum MPH I can do in each gear; now as most of my driving is WOT, hence the need for the 4th set of rear tires in 18,000 miles. that said, what I posted is about what I do now with LT, cats and factory cat back. bout 52ish in 6th...

For sure because I have it memorized, with LT no cats, 6th can't be used till 67 MPH.

[JonD]

I’m going full ARH as I not only want the louder car but am looking to drop as much weight as possible. Best guess on info from ARH is you’d drop 40lbs+ off the car by doing the full system. Comes at a cost but I’m only doing exhaust once