Twigman 93 Report post Posted July 8, 2019 Is there a catback zorst that looks like standard from the outside? Which resonated catback system looks closest to OEM? I just want a bit more noise but want it to look 'standard'. Share this post Link to post Share on other sites
matrixprotein 33 Report post Posted July 8, 2019 The cobra systems look OEM as long as you don't get the jap styleSent from my CLT-L09 using Tapatalk Share this post Link to post Share on other sites
nerdstrike 186 Report post Posted July 8, 2019 You could try to trash the baffling in the muffler, but that would be destructive. No guarantees about surprise resonances or drones either... Share this post Link to post Share on other sites
BRZ-123 174 Report post Posted July 8, 2019 If you wanted one, there is the Subaru sports muffler, as its called. An axleback made by Remus, whose name speaks for itself. It is EU type approved, so cannot be crazy loud. The only thing that i dislike about most aftermarket exhausts is the tips. The OEM tips look fab to me with a lot of Chrome.. The only others that kind of have that kind of tips are from HKS, which is expensive. https://www.subaru.co.uk/product/10842/subaru-brz-sports-muffler Share this post Link to post Share on other sites
bassett 48 Report post Posted July 8, 2019 Try contacting cobra or the likes and see if they can make the pipes that go to the tips work with the standard exhaust tips as it all comes in sections from the rear back box. Shouldn't be difficult if not could be done custom at an exhaust fitting place Share this post Link to post Share on other sites
GT86Curn 8 Report post Posted July 8, 2019 I believe Hayward and Scott use your standard tips on their custom systems 1 Twigman reacted to this Share this post Link to post Share on other sites
Twigman 93 Report post Posted July 8, 2019 19 minutes ago, GT86Curn said: I believe Hayward and Scott use your standard tips on their custom systems That looks perfect! https://www.haywardandscott.com/toyota-gt86/toyota-gt86-cat-back-system-with-larger-centre-silencer.html 1 GT86Curn reacted to this Share this post Link to post Share on other sites
Church 209 Report post Posted July 8, 2019 Maybe also someone can hint then where to find TRD v1 like D-shaped/half-moon tips? I'm interested in one specific catback sound-wise, but it's stock tips of large diameter "buckets" turns me off a bit as screaming "ricer" 😕 Share this post Link to post Share on other sites
Twigman 93 Report post Posted July 8, 2019 https://www.haywardandscott.com/toyota-gt86/toyota-gt86-with-helmholtz-chambered-rear-silencers-and-silenced-centre-pipe.html Actually this looks more my thing. Share this post Link to post Share on other sites
BRZ-123 174 Report post Posted July 8, 2019 https://www.haywardandscott.com/toyota-gt86/toyota-gt86-with-helmholtz-chambered-rear-silencers-and-silenced-centre-pipe.html Actually this looks more my thing.I think this is@ade design. Only one point if consideration. The back box smoothed aerodynamics of the rear underside. You might want to go for a similar design if you track the car.bSent from my SM-G970F using Tapatalk 1 surrey86 reacted to this Share this post Link to post Share on other sites
Church 209 Report post Posted July 8, 2019 Imho if aero matters enough, then one probably will install diffuser anyway, for even less drag and more dowforce then without it and just stock alike single central muffler. Share this post Link to post Share on other sites
surrey86 352 Report post Posted July 8, 2019 Doesn't look like there's a lot of room to fit a diffuser there with all that pipework. It would have to be custom whatever, and therefore cost a lot in money or time. It's right to point out you could lose more performance in drag than you gain in power from the cat back. Share this post Link to post Share on other sites
Ade 517 Report post Posted July 8, 2019 I designed the Helmholtz chambers to kill noise in the 2-4k region. My main issue was wot on the wotorway in 6th gear. They reduced noise at 3k by about 10dB. Regarding aero. I haven't got a sausage but I like the noise. A bigger bore cat back can gain you 10-15hp on a supercharged car. Stock one is quite restrictive with forced induction. It doesn't look very stock though with the big twin Y silencers on the back. Their standard prices are using the stock tips. You can spec your own if you want with H&S. 2 Booboo and BRZ-123 reacted to this Share this post Link to post Share on other sites
Booboo 11 Report post Posted July 9, 2019 19 hours ago, Ade said: I designed the Helmholtz chambers to kill noise in the 2-4k region. My main issue was wot on the wotorway in 6th gear. They reduced noise at 3k by about 10dB. Regarding aero. I haven't got a sausage but I like the noise. A bigger bore cat back can gain you 10-15hp on a supercharged car. Stock one is quite restrictive with forced induction. It doesn't look very stock though with the big twin Y silencers on the back. Their standard prices are using the stock tips. You can spec your own if you want with H&S. I really do like the idea of this system. Best get saving the pennies 😀 Share this post Link to post Share on other sites
surrey86 352 Report post Posted July 9, 2019 It's a really nice looking exhaust to be fair. Share this post Link to post Share on other sites
james_ly 7 Report post Posted July 10, 2019 Exhausts are so expensive for these cars Share this post Link to post Share on other sites
Kodename47 446 Report post Posted July 10, 2019 21 hours ago, maurice said: It's a really nice looking exhaust to be fair. It's also one of the best sounding 2 Ade and BRZ-123 reacted to this Share this post Link to post Share on other sites
BRZ-123 174 Report post Posted July 11, 2019 It's also one of the best soundingIn what configuration? Ade and you have an SC which will give a different sound to those having an NA manifold and tune and to those having a totally stock manifold. Sent from my SM-G970F using Tapatalk Share this post Link to post Share on other sites
Luke 193 Report post Posted July 12, 2019 Miltek actually state that you can fit the standard tail pipes onto their cat backs. Once fitted it's hard to tell that it's aftermarket apart from the slightly deeper note from it. A few people have said that a weld fails over time but can be replaced under warranty. Also I think they have revised the design to prevent this. Don't quote me on this as I've not had one but I also prefer the standard tail pipes rather than the thin jap slash tips that most make. Another option is tuning developments make a very well priced cat back that many have fitted to their cars and I'm sure anyone whose good with a welder would be able to make the standard tail pipe trims fit instead. Plenty of youtube videos out there to compare sound. Share this post Link to post Share on other sites
Varelco 211 Report post Posted July 12, 2019 1 hour ago, Luke said: Miltek actually state that you can fit the standard tail pipes onto their cat backs. Once fitted it's hard to tell that it's aftermarket apart from the slightly deeper note from it. A few people have said that a weld fails over time but can be replaced under warranty. Also I think they have revised the design to prevent this. Don't quote me on this as I've not had one but I also prefer the standard tail pipes rather than the thin jap slash tips that most make. They still fail even with the revised design. Some people have been through 2 or 3 of these exhausts. They are dog sh*t, plenty of better options out there. Share this post Link to post Share on other sites
Luke 193 Report post Posted July 12, 2019 1 hour ago, Varelco said: They still fail even with the revised design. Some people have been through 2 or 3 of these exhausts. They are dog sh*t, plenty of better options out there. I think I'll scrub the miltek off my list and go with tuning developments instead and get the tips changed if I don't like them. Share this post Link to post Share on other sites
Mike 458 Report post Posted July 12, 2019 TD will do the slash cut tips - same as the milltek Share this post Link to post Share on other sites
Kodename47 446 Report post Posted July 12, 2019 On 7/11/2019 at 6:26 PM, BRZ-123 said: In what configuration? No idea, I believe just the cat-back. Share this post Link to post Share on other sites
Twigman 93 Report post Posted July 17, 2019 Seriously tempted to throw the 'looks like standard' idea out of the window! - I love the look and sound (from youtube vid) of the HKS Spec-L with carbon tips! Anyone got one and care to comment? I am determined to get a catback on....noise* and looks are the priority (I suppose I'm a poser)....not really bothered about performance gains although filling the torque dip would be a bonus BUT I don't want to swap manifold as want to keep both cats - the planet is more important than filling the torque dip. *When I say noise I mean a grown up noise, subtly louder than standard but not popping and farting and waking the neighbours or attracting plod loud. Share this post Link to post Share on other sites
Deacon 1357 Report post Posted July 17, 2019 3 hours ago, Twigman said: Seriously tempted to throw the 'looks like standard' idea out of the window! - I love the look and sound (from youtube vid) of the HKS Spec-L with carbon tips! Anyone got one and care to comment? I am determined to get a catback on....noise* and looks are the priority (I suppose I'm a poser)....not really bothered about performance gains although filling the torque dip would be a bonus BUT I don't want to swap manifold as want to keep both cats - the planet is more important than filling the torque dip. *When I say noise I mean a grown up noise, subtly louder than standard but not popping and farting and waking the neighbours or attracting plod loud. I've got the HKS HiPower Spec L. What would you like to know? Share this post Link to post Share on other sites