Best headers for big mods???
22 March 2006, 08:05 PM
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Best headers for big mods???
I'm hoping to buy a full 3.5" internal dia APS exhaust system inc downpipe. Will also be uprating the turbo from it's current modified state and may well consider rotated Garrett setup.
What I'd like to know is which headers would be best to get the most out of this kind of free flowing inlet and exhaust system. More than happy to go equal length - but can anyone recommend a top quality make - should be able to support 500bhp+ in the future as I wouldn't want to change them again. And thinking more for high power/ racing rather than low down torque for on-road driving. Also will I need an uprated up-pipe too, or do some headers come with them. Currently have slightly oversized (compared to standard) H&S up-pipe.
Cheers
Terry
What I'd like to know is which headers would be best to get the most out of this kind of free flowing inlet and exhaust system. More than happy to go equal length - but can anyone recommend a top quality make - should be able to support 500bhp+ in the future as I wouldn't want to change them again. And thinking more for high power/ racing rather than low down torque for on-road driving. Also will I need an uprated up-pipe too, or do some headers come with them. Currently have slightly oversized (compared to standard) H&S up-pipe.
Cheers
Terry
22 March 2006, 09:16 PM
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Terry
If you are going for a rotated garrett then reconsider the need for the full APS exhaust at circa £1k. The rotated set up will come with its own dedicated up/down pipes and there are exhaust systems out ther at half that money that have been proven to around 600bhp.
Any of the Gruppe-S or GT spec style headers will support this bhp level. I used Gruppe-s last year on my race car, the sizes are identical to the GT spec. Expect to pay £400-500
Andy
If you are going for a rotated garrett then reconsider the need for the full APS exhaust at circa £1k. The rotated set up will come with its own dedicated up/down pipes and there are exhaust systems out ther at half that money that have been proven to around 600bhp.
Any of the Gruppe-S or GT spec style headers will support this bhp level. I used Gruppe-s last year on my race car, the sizes are identical to the GT spec. Expect to pay £400-500
Andy
22 March 2006, 09:58 PM
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Originally Posted by Andy.F
Terry
If you are going for a rotated garrett then reconsider the need for the full APS exhaust at circa £1k. The rotated set up will come with its own dedicated up/down pipes and there are exhaust systems out ther at half that money that have been proven to around 600bhp.
Any of the Gruppe-S or GT spec style headers will support this bhp level. I used Gruppe-s last year on my race car, the sizes are identical to the GT spec. Expect to pay £400-500
Andy
If you are going for a rotated garrett then reconsider the need for the full APS exhaust at circa £1k. The rotated set up will come with its own dedicated up/down pipes and there are exhaust systems out ther at half that money that have been proven to around 600bhp.
Any of the Gruppe-S or GT spec style headers will support this bhp level. I used Gruppe-s last year on my race car, the sizes are identical to the GT spec. Expect to pay £400-500
Andy
The APS exhaust in question is just over half that as it is 2nd hand - seems like very good value to me. I take your point about different up/downpipe for rotated setups - but apparently the APS can be adapted to suit rotated??
Anyway, are the Gruppe S and GT soec equal length or slightly unequal length and would equal be the best way ahead?
Cheers
Terry
22 March 2006, 10:11 PM
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OK, at that price the APS is worth it.
The headers are slightly unequal. Equal length will be better for a particular peak figure if they are designed to suit your particular set up. Unequal will even the power over a wider band. Overall the car will be as quick on uneven as it will be on even length.
Andy
The headers are slightly unequal. Equal length will be better for a particular peak figure if they are designed to suit your particular set up. Unequal will even the power over a wider band. Overall the car will be as quick on uneven as it will be on even length.
Andy
22 March 2006, 11:27 PM
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Terry, have a look back through the groupbuy section for these, the contact details for GruppeS are there - I got mine direct from the states. I also have the H&S uppipe, 51mm ID - the collector on the headers is 57mm ID so I slightly tapered the uppipe flange so there wasn't a lip. I did this with the uppipe in situ underneath the car.
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23 March 2006, 10:17 AM
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Terry,
me and daz bought ours (with helix up-pipe) in the Gruppe-s group buy - worked out a good price.
If you're interested i could e mail Max for you and try and blag a third cheap set. (the other 2 both came to me ).
definately more unequal length - i've still got a decent burble
Iain
me and daz bought ours (with helix up-pipe) in the Gruppe-s group buy - worked out a good price.
If you're interested i could e mail Max for you and try and blag a third cheap set. (the other 2 both came to me ).
definately more unequal length - i've still got a decent burble
Iain
23 March 2006, 12:24 PM
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Originally Posted by IPALMER
Terry,
me and daz bought ours (with helix up-pipe) in the Gruppe-s group buy - worked out a good price.
If you're interested i could e mail Max for you and try and blag a third cheap set. (the other 2 both came to me ).
definately more unequal length - i've still got a decent burble
Iain
me and daz bought ours (with helix up-pipe) in the Gruppe-s group buy - worked out a good price.
If you're interested i could e mail Max for you and try and blag a third cheap set. (the other 2 both came to me ).
definately more unequal length - i've still got a decent burble
Iain
Thanks Iain mate - sounds like an option. I'll speak to you soon mate to discuss.
Cheers
Terry
23 March 2006, 04:13 PM
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Secondhand APS 3.5inch exhaust for sale in General at the moment..
http://bbs.scoobynet.co.uk/showthread.php?t=493730
Simon
http://bbs.scoobynet.co.uk/showthread.php?t=493730
Simon
23 March 2006, 06:32 PM
#11
Can a DP and system be too big for a given turbo and give a negative effect?
That is :
A 2.5 for a stock Sti v3 turbo for example
A 3'' for a 20g for example
A 3.5'' for a GT rotated mega turbo etc?
Graham
That is :
A 2.5 for a stock Sti v3 turbo for example
A 3'' for a 20g for example
A 3.5'' for a GT rotated mega turbo etc?
Graham
23 March 2006, 08:49 PM
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You be interested in the group buy we are running.
3 bolt headers and up-pipe, 15m of DEI exhaust wrap for £350 INC VAT.
Diggler has set it up, and the details are on scoobycity here:http://www.scoobycity.co.uk/phpBB2/v...ic.php?t=19312
3 bolt headers and up-pipe, 15m of DEI exhaust wrap for £350 INC VAT.
Diggler has set it up, and the details are on scoobycity here:http://www.scoobycity.co.uk/phpBB2/v...ic.php?t=19312
23 March 2006, 10:35 PM
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Terry get your name on the list because thats a good deal Paul's offering, look's good quality non of this Megan rubbish.
I remember 3 years ago looking at paying £1200 for headers with no up-pipe, wrap or gaskets
Luckily Subaru tuning parts are getting cheaper due to more demand / more suppliers.
I remember 3 years ago looking at paying £1200 for headers with no up-pipe, wrap or gaskets
Luckily Subaru tuning parts are getting cheaper due to more demand / more suppliers.
24 March 2006, 09:31 AM
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Originally Posted by 911
And they are made in China.(as opposed to Japan)
Paul's stuff looks very good, especially the 3 bolt cast flanges.
Graham
Paul's stuff looks very good, especially the 3 bolt cast flanges.
Graham
Paul
24 March 2006, 09:37 AM
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Half the stuff on a standard subaru is made in China / Thailand / Malaysia any way so i would not be concerned even if they were!
They look good Paul, Are they GT-spec gen2's ? great price.
They look good Paul, Are they GT-spec gen2's ? great price.
24 March 2006, 02:55 PM
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Originally Posted by p1mark
Half the stuff on a standard subaru is made in China / Thailand / Malaysia any way so i would not be concerned even if they were!
They look good Paul, Are they GT-spec gen2's ? great price.
They look good Paul, Are they GT-spec gen2's ? great price.
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