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Headers (manifold)
Posted: Thu Apr 02, 2015 11:49 am
by Dan930
I've been talking to Nortech performance about headers on the s4,similiar to these
http://www.ecodetuning.com/shop/cart.ph ... ail&p=1983
James from Nortech said it can be done & good gains in power too
Just waiting for a rough quote on these..
Re: Headers (manifold)
Posted: Thu Apr 02, 2015 1:15 pm
by jaygemson
Interesting stuff. I'll be watching this with interest.
Many of our American cousins have fitted aftermarket exhaust manifolds but I haven't seen any quoted power gains before. It's my understanding from discussions with MRC that the exhaust system makes little or no difference to the power output on mapped S4s, but it can't hurt surely?
I have read however that it can drastically change the character of the exhaust note though and also introduce a fair bit of drone. Something to be aware of, particularly those running loud exhausts already.
Re: Headers (manifold)
Posted: Thu Apr 02, 2015 1:19 pm
by S5 tony
iv just had fitted the supersprint headers and hiflo cats on my s5, will be going on the dyno soon to see if there is any power gains
Re: Headers (manifold)
Posted: Thu Apr 02, 2015 2:14 pm
by Dan930
S5 tony wrote:iv just had fitted the supersprint headers and hiflo cats on my s5, will be going on the dyno soon to see if there is any power gains
Hi Tony,how much where the headers & where did u buy it from???
Re: Headers (manifold)
Posted: Thu Apr 02, 2015 2:46 pm
by S5 tony
the manifolds where around £2k and the cats where around 3k. i got my local tuning
Shop to order them for me
Re: Headers (manifold)
Posted: Thu Apr 02, 2015 4:51 pm
by Dan930
S5 tony wrote:the manifolds where around £2k and the cats where around 3k. i got my local tuning shop to order them for me
So in total it's 5k
From your feel is there any improvements in power?
Is it noisier?
Re: Headers (manifold)
Posted: Thu Apr 02, 2015 5:08 pm
by S5 tony
yes it was 5k for the parts, i was running the Armytrix exhaust which is loud when we put this lot on it was unbearable we put it on the dyno and with the valves closed it lost 120hp,so we scrapped the Armytrix and had a custom exhaust made.the sound is now how i want it and yes it pulls a lot harder just waiting for a part then its back on the dyno,iv all so changed the coil packs for Okada plasma coil packs,as it was suffering from a few misfires it has not misfired since these went on,we all so cut the flanges off the cats and remodeled them as in are opinion they was in the wrong place and would off run the risk off them catching on speed humps.as the cats now sit under the car
Re: Headers (manifold)
Posted: Fri Apr 03, 2015 7:50 pm
by Skiptowncat
Sorry but 3k for 2 cats? They should cost about £200 each.
Re: Headers (manifold)
Posted: Fri Apr 03, 2015 8:02 pm
by S5 tony
according to the guy who made my exhaust they are £750 each in the raw and i didnt buy them from him.yes you can buy cats for £60 but do i really want to fit them to my Audi
Re: Headers (manifold)
Posted: Fri Apr 03, 2015 8:25 pm
by Skiptowncat
S5 tony wrote:according to the guy who made my exhaust they are £750 each in the raw and i didnt buy them from him.yes you can buy cats for £60 but do i really want to fit them to my Audi
Each the their own, but a good quality 200 cell high flow cat doesn't cost £750. got any sound clips?
Re: Headers (manifold)
Posted: Fri Apr 03, 2015 8:40 pm
by S5 tony
have a look on supersprint website there prices are all on there
Re: Headers (manifold)
Posted: Fri Apr 03, 2015 8:51 pm
by Skiptowncat
It's all foreign language
Re: Headers (manifold)
Posted: Fri Apr 03, 2015 10:12 pm
by Dan930
Skiptowncat wrote:It's all foreign language
Here mate,English version
http://www.supersprint.com/ww-en/audi-a ... p-09-.aspx
Re: Headers (manifold)
Posted: Fri Apr 03, 2015 10:46 pm
by Skiptowncat
Eye watering prices....
Re: Headers (manifold)
Posted: Sat Apr 04, 2015 12:39 am
by Dan930
Skiptowncat wrote:Eye watering prices....
I 100% agree mate