Loudest exhaust set up out there?

Chuck33079 · 03-20-2014, 08:44 AM

Quote:

Originally Posted by Nick M

Alrighty, semantics

Loudest exhaust with stock cats..shorty headers, mid-pipe, short tails

OP asked about the loudest setup. Not what makes more or less power.

Thanks

With the stock cats in place, shorty headers are going to make very little difference in volume. Where are you getting your info from?

Nick M · 03-20-2014, 09:19 AM

Quote:

Originally Posted by Chuck33079

With the stock cats in place, shorty headers are going to make very little difference in volume. Where are you getting your info from?

Been around for 15 years in road course, drag, NA applications, hondas, turbo subarus - new here but not 'new' at all. But I am glad to be here, enjoying my 370z very much.

I'd bet you lunch a pair of shorty headers on an otherwise stock 370z exhaust would increase in DBs at WOT under load. And it would only be further amplified by a midpipe + short tails. Exhaust components tends to be synergistic especially when it comes to scavenging and cfms.

The thin wall tubing alone would add noise

But...yes I would imagine that the long tubes are always going to be superior, stuffing a clumsy collector closer to combustion rarely makes power unless there is a snail attached to it, but OP just wants noise :P

Chuck33079 · 03-20-2014, 09:22 AM

Quote:

Originally Posted by Nick M

Been around for 15 years in road course, drag, NA applications, hondas, turbo subarus - new here but not 'new' at all. But I am glad to be here, enjoying my 370z very much.

I'd bet you lunch a pair of shorty headers on an otherwise stock 370z exhaust would increase in DBs at WOT under load. And it would only be further amplified by a midpipe + short tails. Exhaust components tends to be synergistic especially when it comes to scavenging and cfms.

The thin wall tubing alone would add noise

But...yes I would imagine that the long tubes are always going to be superior, stuffing a clumsy collector closer to combustion rarely makes power unless there is a snail attached to it, but OP just wants noise :P

It's possible it would be a bit louder, but like you said- only from a change in tubing. The 370 has a really good set of manifolds as it is. If the OP still has the OEM cats bolted to a set of headers, it's going to cork the majority of excess noise right back up.

Sh0velMan · 03-20-2014, 09:22 AM

Quote:

Originally Posted by Nick M

Been around for 15 years in road course, drag, NA applications, hondas, turbo subarus - new here but not 'new' at all. But I am glad to be here, enjoying my 370z very much.

I'd bet you lunch a pair of shorty headers on an otherwise stock 370z exhaust would increase in DBs at WOT under load. And it would only be further amplified by a midpipe + short tails. Exhaust components tends to be synergistic especially when it comes to scavenging and cfms.

The thin wall tubing alone would add noise

But...yes I would imagine that the long tubes are always going to be superior, stuffing a clumsy collector closer to combustion rarely makes power unless there is a snail attached to it, but OP just wants noise :P

Never seen the stock headers, eh?

Take a peek behind the heat shield sometime. There's no "thick wall" metal in there. Shorties aren't gonna be measurably louder if they're going through the stock cats.

Chuck33079 · 03-20-2014, 09:24 AM

Quote:

Originally Posted by Sh0velMan

Never seen the stock headers, eh?

Take a peek behind the heat shield sometime. There's no "thick wall" metal in there. Shorties aren't gonna be measurably louder if they're going through the stock cats.

Yeah, these aren't crappy log-style cast iron manifolds like some cars have. The OE headers are damn good for a factory effort.

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