Dean_Fuller

No cats...at idle I hear very little difference. Slow acceleration a little louder...hard acceleration is even loader but not too loud. I'm looking for the "exotic car sound" not so much American muscle car. I've done a search with no real results. The exhaust guy suggested I REMOVE the resonators and replace with straight pipe....what would that do???? How does one get the "exotic" car sound? Different main single muffler? Again...not looking for LOUD RUMBLE....looking more for the Carrera GT , lambo, Ferrari sound.

soupcan

Adding two to four more cylinders might help, gonna be hard to make a V8 sound exotic. I have an X-pipe, no cats and flowmasters and it sounds just like another 32valve, 5liter V8, the mustang.

the flyin' scotsman

If your talking about the '89 what size of resonators and rear muffler do you have?

The X pipe with small resonators and the GT rear muffler is what I run and the best compromise IMHO. The same set up with the RMB was too loud and high rpm again MHO.

Dean_Fuller

I have the small resonators and stock muffler.

Dean_Fuller

More info please!!!!

Jim bailey - 928 International

running a single exhaust pipe all 8 into one yields a higher RPM sound than you get with dual exhausts where you hear the irregular firing order of a typical V-8. The 90 degree V-8 (unless it has a flat crank ) must fire two cylinders on one side in succession.....think right left ,right left, left left , right right

jorj7

I assume Sterling was talking about these:





By Tom Cloutier...

cold_beer839

Put and RMB on there next. Then if you want more sound try some different resonators.

Dean_Fuller

Hi Jim,
Any way to achieve this and keep the benefits of the X-pipe?

Dean_Fuller

That may be the best way to go. Then have a simple dual muffler set up instead of resonators and find some higher, smoother RPM sounding units.

Lopez

like Jim said, it isn't going to sound like a Ferrari V8 unless you put a motor with a flat-plane (180 degree) crank in there... like a Ferrari V8, for example. Although I'd think that crazy header setup pictured above would get you partway there given how it mixes 2-3 and 6-7 with the opposite bank.

An early single exhaust (with an aftermarket Y-pipe) with no mufflers doesn't sound anything like a muscle car V8 at high RPM, it's more like what I think you're describing, but if you want to keep the X-pipe that probably doesn't help.

Dean_Fuller

Those are amazing??? Have no idea how they would sound....or how available a set would be.

powpowj

I was next to a new lambo yesterday, and it was as quiet as my pontiac torent. Hour later next to a Pontiac G8 with the 6 liter, American muscle but what a great sound

Jim bailey - 928 International

The problem with exhaust systems is they are musical instruments and the length , diameter, curves and restrictions all change the tune ! The old Very Brown 1980 has a 2 into 1 test pipe....into a Borla system that Y pipes into two side by side pipes to a two in two out Borla muffler at the rear. It makes a somewhat exotic sound at higher RPM. You rarely hear a louder V-8 engine not running a dual exhaust....

shmark

Jim has it right for a more "exotic" non-murrican sound. While not quite optimum for power, a SINGLE exhaust will concentrate all 8 exhaust pulses resulting in a much higher, multi-tonal sound. Go to any PCA DE or club race and you'll hear the results clearly. The dual exhaust 993 RSR has an incredible deep sound, while the 996 GT with a single has a high-pitched scream. A 928 with a dual will sound more American-style (even NASCAR with a big bore) while a single will have a high-pitched ripping sound that's more complex than a Ferrari V8. The Ferrari sounds like two fighing 4-cylinders due to the flat-plane crank. I know which way I chose.