Tomei Extreme Ti Cat Back Exhaust System

[Roy]

Looking at a Tomei Extreme Ti cat back exhaust system but want to confirm what the ID of the rear muffler is. Has anybody actually seen one or own one...measured one?

I understand the tube diameter is 89.1mm OD, just want to make sure the muffler does not drop in diameter to 3" etc

[levinboy]

Shoot a pm at Matt from newera

One of the traders on here he will know

[Owgasm]

^

I don't think he does.

[Roy]

Yeh a few people have asked and i posted a reminder question in his section before posting here. You would think its an easy thing to check which suggests to me maybe its only a 76-80mm ID muffler

[ARTZ]

Its still 80mm. Can't hurt too much can it..its only a 2 litre

Mine does the same..but way I figured it 80mm is plenty anyway

[Roy]

Yeh, but if I am spending that much money on an exhaust I dont want it to cost me a single bloody kw. I only make 250 odd I have some prices for some thing guage stainless mufflers and pieces and if I cant get a solid answer on this exhaust will be going twin 2.5" with a 4" dump with wastegate plumb back in. I currently lose around 6-7% of my power when I plumb the gate back in so need to improve over the HKS Hyper i currently run

[dori34]

the solution to your power woes??

open up that screamer

fab up a removable piece so you can remove it and reinstall at anytime which shouldn't take long to do.

[Roy]

And get black flagged at Sandown and Phillip Island so end up wasting entry

[dori34]

lol what?

they dont allow open screamers??!!

oh that sux

[scotty nm35]

the solution to your power woes??

open up that screamer

fab up a removable piece so you can remove it and reinstall at anytime which shouldn't take long to do.

I don't know how anyone can drive on the road with a screamer, I only lasted a few days of not being able to boost at all for fear of instant defect, car crushing, death by firing squad on the side of the road. But then I do live in Victoria...

Tracks have DB limits too, on some cars they dump the exhaust out different sides depending which side of the track the pits (read microphone) sits. An open screamer would have no chance.

[dori34]

I don't know how anyone can drive on the road with a screamer, I only lasted a few days of not being able to boost at all for fear of instant defect, car crushing, death by firing squad on the side of the road. But then I do live in Victoria...

Tracks have DB limits too, on some cars they dump the exhaust out different sides depending which side of the track the pits (read microphone) sits. An open screamer would have no chance.

must be a Victorian thing.

Wakefield and Eastern Creek in Sydney, don't have noise restrictions.

[TiTAN]

must be a Victorian thing.

Wakefield and Eastern Creek in Sydney, don't have noise restrictions.

wakefield does have noise restrictions, there is a mic in the middle of the grass patch near the main straight.

[dori34]

wakefield does have noise restrictions, there is a mic in the middle of the grass patch near the main straight.

but they allow open screamers, your car must be insanely loud for them to pick it up and kick you off the track.

ok i just checked the wakefield regs, it says max limit is 95dB at 30m,

they must be very lienant with this as ive seen alot of GTRS/V8/cars with open screamers go there without an issue.

[R31Nismoid]

Noise can vary in DB with something a simple as a wall.

Most tracks have restrictions. And then also some have "X" amount of "unrestricted" days.

Just a matter of if you get pinned or not, and that depends then on the position of the pickup

[zebra]

Bris, Buy a 3.5" Borla/Magnaflow etc Stainless muffler from Summit/Jegs take to a decent exhaust shop and have a system made made, wont be titanium, but wont be any doubts about the muffler quality either

[R32 TT]

Bris, Buy a 3.5" Borla/Magnaflow etc Stainless muffler from Summit/Jegs take to a decent exhaust shop and have a system made made, wont be titanium, but wont be any doubts about the muffler quality either

+1.

In fact just got a new full 4" system using Magnaflow's Troy. 6" body Cat as well. Worth thinking about - at least you know exactly what you're getting.

[boostn0199]

Thats a really nice looking exhuast.

[ssxRicho]

It sure is.

[XRATED]

I'm a jdm fan to my detriment with some of the parts I buy... Incliding exhaust's for the most part.

But for the money, I'd carefully consider custom Ti pipe work (Appropriate grade Ti mandrel bends can be purchased in the US) with slip jointed 'Burns Stainless' center resonator/s and a brand name rear can.

The thin wall stainless pipe work 'Burns Stainless' stock are only a poofteenth heavier than the same size Ti

Cheers

Justin

[Roy]

I'm a jdm fan to my detriment with some of the parts I buy... Incliding exhaust's for the most part.

But for the money, I'd carefully consider custom Ti pipe work (Appropriate grade Ti mandrel bends can be purchased in the US) with slip jointed 'XXXX Stainless' center resonator/s and a brand name rear can.

The thin wall stainless pipe work 'XXXX Stainless' stock are only a poofteenth heavier than the same size Ti

Cheers

Justin

Don't go posting this stuff up on SAU. The real good gear you need to keep quiet and to yourself I did an exhaust with a friend years ago when I lived in Sydney and had after hours work to my old employers factory, tools etc. Their gear is top notch and I was planning on using two of their real mufflers in a twin system.

What I need to find is a centre muffler that has a 4" inlet and twin 2.5" outlet