antonio1988

I have Mac long tubes and Mac axlebacks along with an offroad x pipe. The setup sounds really nice but it is a bit loud for a daily driver. Now I have a bid in place on a prochamber and if that doesn't work out, then I'll get an off road H pipe instead. Let's say I'm at a 10 right now and want to tone it down to a 7 or 8...I was wondering if I can put these on to lessen the volume to about that 7 or 8.

http://www.americanmuscle.com/slp-lo...esonators.html

What about some pypes high flow cats?

project85

if your at a "10"... it'll prolly bring it down to "9"

I had flowmasters 40's and it droned so I put on some resonators... helped reduce the sound a bit but still too loud.

mygt500

If you dont have CAT's now adding them will bring it down to a 7-8 from what I have read....I still have my CAT's (stock) and would never run without them because of the side exhaust (very loud already)

Adding the resonators wont change the volume much as they are straight thru in design and it changes the sonic signature of the exhaust to help eliminate/reduce drone.

antonio1988

so the cats will turn the volume down and the resonators will eliminate drone? Can I put both of them on?

5SPD07GT

you can add both if you want but its gonna add extra weight to your car, not sure if thats important to you or not. I'd start with the cats and go from there.

antonio1988

sounds like a good idea...I will try the cats first.

antonio1988

quick question has anyone dynoed to see what the difference is between the stock cats and high flow cats? People say they are "SO RESTRICTIVE" but if the difference is like 5 hp then I dont even care and will save myself the $170 and just use those stock cats on my soon to be pro chamber. Anyone know anything about this?

Legion5

That's a nice way of describing what resonators do, very nice actually.

High flow cats sound COMPLETELY different from stock cats and they add about 5 hp but if you want to successfully quiet the sound down add glasspacks. If 2 don't do it 4 will. Glasspacks change the sound of the car the least unlike cats.

Personally I just added 4 layres of dynamat and 1 layre of dynaliner to the rear seat, and spare tire area. Went from 11 to 7 (custom straight exhaust) and the people outside the car can still enjoy it.

MustangGT0405

I put in glass packs and I think it sounds quieter than without them, but it might be in my head because the tone was so improved that I just liked it better.

If you are interested I have a set of Pypes High flow cats that I had on my car for less than 1k miles if you want them. $80 + shipping. (Have to be welded in.)

I added cats and resonators at the same time and it quieted the car too much for me so i pulled off the cats. They were easier to get out than the resonators. I defineately recommend doing one or the other.

PM me if you want those cats.

gandyj

Check this out, http://videos.streetfire.net/video/0...ust_147697.htm
He has done what you're thinking about.
Joe