The1andonlygav 0 Posted October 18, 2005 Report Share Posted October 18, 2005 Grr, i am having a mare. I need a cat-back system to fit to my rado before i get the charger fitted. But i need a minimum of 2.5 inch diameter for the charger to flow properly. Now my first 2 choices were miltek and magnex but they only do them in 2.25 which isn't good enough. I don't want a booming exhaust system so can anyone suggest a cat-back system with 2.5 inch diameter. Cheers. Link to post Share on other sites
binliner 0 Posted October 18, 2005 Report Share Posted October 18, 2005 If you are anywheere near Essex then I'd get one made here... cant recommend them highly enoughhttp://www.haywardandscott.com/index.asp Link to post Share on other sites
Craig 0 Posted October 18, 2005 Report Share Posted October 18, 2005 You want booming? You should hear mine!If your local Powerflow outfit is one of the good 'uns, go there. I'd have recommended my local, but I'm not sure it's worth the drive from Brum!Come to think of it, a freind of mine was going to get his done by these guys:[link]http://www.exhaustuk.co.uk/home.htmSupposedly they tig weld all their joins ... Link to post Share on other sites
FishWick 21 Posted October 18, 2005 Report Share Posted October 18, 2005 Why do you need 2.5" in order for the supercharger to flow properly? It's not a turbo...the turbine blades won't stall, it's crank driven. If anything, the biggest restriction on a charged Corrado VR is OBD1. Sort the mapping and running out first and then worry about exhausts. I have a standard Corrado system on mine and it's plenty good enough, they're not as restrictive as people think.Milltek do do a 2.5" system by the way, you just need to ask for it. 2.5" will make the engine feel slightly flatter low down due to the gas speeds slowing down. On boost you might feel a small benefit.Seconded on the Hayward&Scott recommendation, not cheap though. Link to post Share on other sites
stuey 0 Posted October 18, 2005 Report Share Posted October 18, 2005 I don't know if Jetex do one for the Corrado, but the Stainless Golf3 one is 2.5" i believe. Link to post Share on other sites
VRmonster 1 Posted October 18, 2005 Report Share Posted October 18, 2005 on a similar subject. I have a 2.5" downpipe, and am running a 2.25" exhaust system, including cat replacement, is this going to restrict me much? as i know a lot of people run 3" DP then a 2.5" system, so cant imagine the drop in bore hurts much.also, does anyone know where to get exhaust flange plates (to make my own attachments.)sorry for the hijack just didnt think it was worth the new post. Link to post Share on other sites
The1andonlygav 0 Posted October 19, 2005 Author Report Share Posted October 19, 2005 Hmm, i'm confused now anyway. The mapping and fueling will be sorted on fitting so the exhaust is the next step for me. I have spoken to powerflow and have been able to offer me something. So might go with them.Regards the downsizing of bore size, i haven't a clue i'm sorry. But im going to try and stick with 2.5" throughout. I might bve wrong by doing that. Oppinions people? Link to post Share on other sites
VRmonster 1 Posted October 19, 2005 Report Share Posted October 19, 2005 with a charger id just go for 2.25 as you will get a better backpressure, which in turn encourages more torque, which is what every VR owner is aming for. who wants top end power, they can do 140 fairly easily, why lose your licence. plus it will fit in the small tunnel better, lol.i have also decided to go for 2.25, and just fit a reducer to the end of the downpipe. im sure i will still make more than enough power for my need even with the restriction. Link to post Share on other sites
TVR6 0 Posted October 20, 2005 Report Share Posted October 20, 2005 lol He said he 'DIDN'T' want a booming exhaust, so that rules Powerflow out who subsequently are very well regarded in the German and Jap tuning circle. Chavs love em however Hayward and Scott have to be about the best but they are not cheap. I had a system made for mine at LongLife Exhausts, which Craig has mentioned (exhaustuk.co.uk) Mine cost me Link to post Share on other sites
TVR6 0 Posted October 20, 2005 Report Share Posted October 20, 2005 lol He said he 'DIDN'T' want a booming exhaust, so that rules Powerflow out who subsequently are not very well regarded in the German and Jap tuning circle. Chavs love em however Hayward and Scott have to be about the best but they are not cheap. I had a system made for mine at LongLife Exhausts, which Craig has mentioned (exhaustuk.co.uk) Mine cost me Link to post Share on other sites
TVR6 0 Posted October 20, 2005 Report Share Posted October 20, 2005 Oh Poo! How do I correct an error in my post? I meant to say that Powerflow are 'NOT' very well regarded in the German and Jap tuning circles. DOH! Link to post Share on other sites
The1andonlygav 0 Posted October 24, 2005 Author Report Share Posted October 24, 2005 Thanks guys, just spoke to MIJ and they have quoted me cheaper than powerflow and come highly recommended. Result Link to post Share on other sites
Craig 0 Posted October 24, 2005 Report Share Posted October 24, 2005 Hope it turns out to all you want it to be.I am not sure quite what I meant to type in my original post, but it certainly didn't come out right!My Powerflow exhaust, though fairly loud, is only slightly booming and only at around 2500 rpm. The rest of the time it is very nice - a low burble on idle, a nice growl when you blip the throttle, a lovely aggressive roar when use the throttle enthusiastically and a pleasant, unobtrusive level of noise at motorway crusiing speeds.My local Powerflow guys managed to get it exactly right. Link to post Share on other sites
VR6Pete 1,455 Posted October 25, 2005 Report Share Posted October 25, 2005 I've got a powerflow on mine, I dont find it loud or boomy - but that's bcos I requested it like that! Cant grumble, not had a problem with mine at all, Took it back one bcos my tail pipe went discoloured, and they swapped it out no sweat. Link to post Share on other sites
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