3.5" or 4" exhaust - R33 GTR

[Borci88]

Just seeing if there are any options before I build my own. 

 

Looking for a 3.5" or 4" exhaust for an R33 GTR. The quieter the better, not interested in straight through or just a cNon, no titanium either. 

 

Cheers

[GTSBoy]

less than or more than 9000 HP?

[Dose Pipe Sutututu]

40 minutes ago, Borci88 said:

Just seeing if there are any options before I build my own. 

 

Looking for a 3.5" or 4" exhaust for an R33 GTR. The quieter the better, not interested in straight through or just a cNon, no titanium either. 

 

Cheers

SP Muffler will have an OTS 4" system for R33s soon.

They already have them for R32s, very sex.

https://www.hioctanedirect.com/SP-Mufflers-4-Inch-Cat-Back-Stainless-Exhaust-With-Ovan-Muffler-Suit-R32-GTR

I'm no affiliated or anything like that.

 

[joshuaho96]

55 minutes ago, Dose Pipe Sutututu said:

SP Muffler will have an OTS 4" system for R33s soon.

They already have them for R32s, very sex.

https://www.hioctanedirect.com/SP-Mufflers-4-Inch-Cat-Back-Stainless-Exhaust-With-Ovan-Muffler-Suit-R32-GTR

I'm no affiliated or anything like that.

 

Interesting, this might solve my "wtf do I do for catback" dilemma. 

[Dose Pipe Sutututu]

43 minutes ago, joshuaho96 said:

Interesting, this might solve my "wtf do I do for catback" dilemma. 

Very good pricing, considering how much fabricator charge these days for just that!

[Borci88]

2 hours ago, Dose Pipe Sutututu said:

SP Muffler will have an OTS 4" system for R33s soon.

They already have them for R32s, very sex.

https://www.hioctanedirect.com/SP-Mufflers-4-Inch-Cat-Back-Stainless-Exhaust-With-Ovan-Muffler-Suit-R32-GTR

I'm no affiliated or anything like that.

 

How soon is soon? 

 

This was the reply I got from them yesterday:

 

"No unfortunately we don't do a bolt on system for the r33, we can supply mufflers to suit but no pipework. You'll need to tee up a custom system with a local fabricator." 

[Dose Pipe Sutututu]

1 minute ago, Borci88 said:

How soon is soon?

No idea, in the Hi Octane Ad, says R33 and R34 coming soon? Lol.

[Borci88]

 

On 10/3/2023 at 6:22 AM, StubbyFoil said:

RB335, I would be interested but I'm using the Full-Race EWG manifold that sits differently than the 6 Boost. 

I'll send them an email as well and see if they let the cat out of the bag! 

 

At this stage regardless I think it will be 2 SP Mufflers welded into a full stainless system. I assume 4" will suit my EFR9174 perfectly but 3.5" may also be on the cards if that will flow 500kw much the same.. 

[Butters]

Recently made the switch from a 3inch to 4inch SP Muffler setup.

Very happy with the result, more power and much better low down response.

The SP gear is high quality and they are a joy to deal with, they made me custom spec mufflers for my random setup.

I also wanted it quite and they did a great job of that.

My only complaint is they are a heavy unit.

 

Can't say what a 3.5 inch would have done but no regrets going the larger option.

 

https://www.instagram.com/reel/CzV4rhxv4tG/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==

[nicr4wks]

On 7/16/2024 at 8:14 PM, Butters said:

Recently made the switch from a 3inch to 4inch SP Muffler setup.

Very happy with the result, more power and much better low down response.

The SP gear is high quality and they are a joy to deal with, they made me custom spec mufflers for my random setup.

I also wanted it quite and they did a great job of that.

My only complaint is they are a heavy unit.

 

Can't say what a 3.5 inch would have done but no regrets going the larger option.

 

https://www.instagram.com/reel/CzV4rhxv4tG/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==

That looks pure sex. Any vids of the noise? 
I'm guessing with dual muffler no resonator you don't have any drone to worry about.

[Butters]

It's really REALLY quite for a 4inch and no drone.  SP will make a smaller set of mufflers if you are looking for a bit more noise. 

 

[Dose Pipe Sutututu]

Here's mine for context, 3.5" turbo back, SP Mufflers and you can hear the solid lifters over the exhaust lol. I still believe I have the quietest R33 Skyline that's over 400kW.

 

 

 

[nicr4wks]

18 hours ago, Butters said:

It's really REALLY quite for a 4inch and no drone.  SP will make a smaller set of mufflers if you are looking for a bit more noise. 

 

 

11 hours ago, Dose Pipe Sutututu said:

Here's mine for context, 3.5" turbo back, SP Mufflers and you can hear the solid lifters over the exhaust lol. I still believe I have the quietest R33 Skyline that's over 400kW.

 

 

 

Thanks Guys! There's lots of posts about SP being the bees knees but these are the first 2 audio clip's I've actually seen. That's enough to convince me to fork out the $$ over cheaper brands. I'm sick of shouting at my passengers, time for the HKS to go 😂

 

@Dose Pipe Sutututu what's your setup, looks like an oval rear. Any mid muffler or resonator?

[Dose Pipe Sutututu]

@nicr4wks I have a rear oval muffler, a mid muffler and a 100 cell 5" body catalytic converter (that barely does anything useful except helps shoot massive flames on decel).

FWIW, I have Android Auto and can have a conversation with the windows up whilst driving without yelling or maxing out the audio.