Exhaust to loud.

HI.

I need some info what is the best way to get my
Exhaust under 84 db at 4500 rpm messured around 50 cm from the muffler opening.

Here in Germany my 2007 gt500 is registered in the papers to be around 84 db in stock condition.
It is not allowed to be over no matter what, ouer cars are louder than that from factory, but since it is born that way it gets accepted. The problem is that the police has made a new taskforce since Oktober last year, and if you are just a little over the car gets pulled in for a full inspection wich takes 5-10 days and costs about 1000 euro. And then they find all other mods and then the car has to be returned to stock before it can be driven again. They don´t care to loud is to loud at the MOMENT they pull you over, so before it gets so far I would rather just silence it down so much that I will not get asked to open the hood.

My exhaust is totally Stock exept from
KR mufflers wich will come of next week, other mods are Bullit cams and a Kenne Bell 2.8


Can you guys give me some good advice what to do?

I have been thinking about to put i some Cherry Bombs somewhere in the chain to help out the stock mufflers is that possible?

Thanks.

Sendt fra min SM-N950F med Tapatalk

i'm no exhaust guru but perhaps you could swap out your mufflers to something that would get you into the acceptable volume level? probably the most economical way to do it. you mentioned you were taking off your KR's so why not look into something milder.

add in the longest resonators you can find as well. Should be able to get 24-30" one in the over the axle pipes.

Hi!

I asume the the stock ones are the most quiet ones, but if there are some aftermaket mufflers that work like the gun silencers in Hollywood I will go that route I just have no idea where to look, since I am NO guru at all.

Than

Huh? (Hearing Joke).

They make exhaust silencers you can slightly hammer in to your exhaust pipes, then pull them with plyers when you ready to let them horses sing.

They also make silencers pre built into exhaust tips.

My cousin was a ricer back in the day, it kept him from getting exhaust tickets.

Borla touring has a nice sound and is tame


Sent from my iPhone using Tapatalk

You can weld in resonators prior to the mufflers to quiet down the exhaust.

Hi @Kempf. You might be able to find these in Germany, if not I cant see why importing these from the US would be hard at all.

https://www.summitracing.com/parts/...MI1I-Pm-GZ2QIV0zuBCh1vsgaXEAQYASABEgJrFfD_BwE

Should be easily welded into your stock 2.5" over the axle pipes, just aft of your mid pipe coupler.

lexustech48 said:

Hi @Kempf. You might be able to find these in Germany, if not I cant see why importing these from the US would be hard at all.

https://www.summitracing.com/parts/...MI1I-Pm-GZ2QIV0zuBCh1vsgaXEAQYASABEgJrFfD_BwE

Should be easily welded into your stock 2.5" over the axle pipes, just aft of your mid pipe coupler.

Click to expand...

This is what I've installed in mine, but the 3" 18" version, which is the longest they make. They make the 2.5" in 18" as well.

https://www.summitracing.com/parts/vpe-1793/overview/

Why not pickup a set of factory mufflers?

Harry08 said:

Why not pickup a set of factory mufflers?

Click to expand...

That’s a good idea, but maybe also consider some 11+ stock mufflers.
My answer: get out of Germany. No way I’d stay in a place where I couldn’t modify my cars.


Pick your poison.

Harry08 said:

Why not pickup a set of factory mufflers?

Click to expand...

From my understanding of OPs issue, it sounds like our cars are louder than the loudest acceptable limit stock from the factory.

OP is afraid that even stock, he may get cited by law enforcement and forced into mandatory inspection, where he would be forced back to stock and have to pay a 1,000E fine.

Lol @Recon, that might be saying to one of us get out of the US if there was something we couldn't do. lol, Id take installing resonators and keeping my mods over having to leave my country. I do agree with the spirit of what you said though.

lexustech48 said:

Lol @Recon, that might be saying to one of us get out of the US if there was something we couldn't do. lol, Id take installing resonators and keeping my mods over having to leave my country. I do agree with the spirit of what you said though.

Click to expand...

Guess I’m a hypocrite. My state’s law on exhaust loudness is it can’t be louder than stock, and I make a living making cars loud.


Pick your poison.

Recon said:

Guess I’m a hypocrite. My state’s law on exhaust loudness is it can’t be louder than stock, and I make a living making cars loud.


Pick your poison.

Click to expand...

Hypocrite, no. We are just fortunate our car culture is deeply rooted with performance and home but racecars. Makes cops with decibel measuring equipment a thing only in CA and other strict states.

Long live the Hot Rodder in all of his or her forms.

Sent from my banana using the svtperformance.com mobile app

lexustech48 said:

Hypocrite, no. We are just fortunate our car culture is deeply rooted with performance and home but racecars. Makes cops with decibel measuring equipment a thing only in CA and other strict states.

Long live the Hot Rodder in all of his or her forms.

Sent from my banana using the svtperformance.com mobile app

Click to expand...

The really ironic thing is I purchased factory street legal mufflers for both my 3V’s this week. Bullitt’s and Roush Stage 3 “street legals.” The 427R had the “off-road” mufflers as standard equipment, but I got the Stage 3’s and the Bullitt’s in case the current mufflers are way too rowdy for the street. Their current mufflers (FR500S and Roush Extreme) sound great on their stock systems, but headers and cams might make them get a little too much attention.


Pick your poison.