redbird_400

Well I should be able to blow off some cash on this paycheck tomorrow. Should I get the American Thunder exhaust? for 327.00 or the Force-II for 229.00. The American Thunder exhaust is sopposed much louder and the Force-II exhaust is sopposed to be a little more quiet while driving down the road. Well what do you think?

87 B4Z

its is pretty loud with headers

PeteZ28

I'm in the process of putting the American Thunder system on my car. Fit & finish is good. Seems like I chose it because it had the stock type dual outlets. I think the Force II has two outlets on one side. I also have a used dual cat setup from another car that I'm putting on and they only made Amer Thunder to fit it, although now I think I could have attached a single cat back system to the oem cat y-pipe. I'm expecting it to be louder than I want. I noticed some baffle type devices in the jegs catalog that should quiet it down some. I'll see.

Pete

redbird_400

Yeah let us know how loud it is when your done. When do you think you will have it complete?

87 B4Z

if you dont have headers it will be pretty quiet even with a hollowed out cat. i had the american thunder cat back on my car.

PeteZ28

It will probably be a couple months before I'm done. I planning a 350 for it to do an engine swap too. I'm gonna go with one of the 1-5/8 headers like Edelbrock or Hooker or Hedman. Don't want to spend $500 for headers. Like I said if its too loud I'll try one of those baffles type gadgets in the Jegs catalog. It looks like there made to be able to run headers without mufflers. I figure they ought to quiet it down some. Of course they claim no increase in backpressure but it will probably be some. Still ought to be a good power increase over using manifolds.

Synapsis

I know I should've kept the sound files in the sig..

The setup is L98 350, SLP 1-3/4" headers, Catco cats (when they're on), 3" American Thunder catback with dual 3" outlets. Recorded with a crappy laptop microphone, 5 feet to the rear of the car.



Dual cats installed
Straight pipes in place of cats
Straight pipes w/ open cutout in I pipe

PeteZ28

Thanks for the sounds. It's not bad with the cats. I guess I'll see how mine sounds when I'm done.