zarulez

Hi guys. Iam importing is350s from Japan to UK and i had some phitos of this exhoust. . Is anyone seen something like it?? I thore that all axhoust systems are to free flow the fumes.. Please help.. And let me know if its any good or i should replace it to have better flow.. Regards Lucas

Aspect

The setup looks similar to the ISF HKS SSM exhaust system in function with low speed exhaust gasses being routed to the large cylinder while fast exhaust gasses(i.e. when you step on the throttle) bypass and go straight through. For our cars we don't gain much from muffler swaps since it's not the most restrictive thing in the system. I'd advise driving around with it and if you don't like the sound, just swap it out with something else.

zarulez

Thanks for reply.. Car will be with me in 2 months as it need to be shipped from Japan to UK but guy which has tested it he have tested ISF before jumped in to this IS350s and according to him it sounds very similar to if not that sam as ISF.
So it is improved in bhp after having this sort of thing or is better gain on straight thorough...?

bakalag

I had the same concept installed on my custom exhaust, killed 70-80% of slow exhaust drone but had about 90% loudness when WOT before I had installed it. I basically had no resonators straight to Flowmasters and it was super addicting to drive under WOT but I was getting a headache at 70-80 mph cruising. Standard resonators killed about 30% of the original drone but the sound when WOT became extremely muted as well so I tried this setup.

zarulez

What do you mean by WOT? Is any gain on BHP? Did you put the car through dyno?

bbaugher47

Wide. Open. Throttle.

Aspect

We don't make that much power from the exhaust unless you do headers, so if your cats are still in place I'd recommend looking for the sound you want rather than try to find the system with the most HP.

DickH

I'm going to agree and say that you should go with an exhaust that sounds good to you and not worry about the hp. If you worry about hp, go with a 2.5" exhaust with high flow components. I have a dual 2.5" exhaust with high flow cats and flow through mufflers and it sounds ok with little drone.

TOPENDMS

Called 'Twin Loop' design. Usually expensive. You can search google for more info.

Gville350

iTrader: (10)

^Bingo! Twin-loop design. If you find any Suruga Speed badges on it...MONEY!

zarulez

It said on auction sheet that it is Suruga muffler.. Never heard about this brand here in UK.... I can't wait till I receive demo video from import agent 😝😝😝

bakalag

I wanted a suruga exhaust until I realized the price

zarulez

​​​​​​i will upload somo video once I have it.
✌✌✌

Gville350

iTrader: (10)

Holy crap! Lucky man! This is the only aftermarket exhaust I'd put on my 2IS; it sounds A-MAZ-ING!

zarulez

Hi. here is a sample of video I just received from my import agent.
Cold start and revup.. Sound good.