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Author Exhaust manifolds
gavin18787
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Registered: 22nd Feb 05
Location: Basildon, Essex
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24th Oct 07 at 12:33   View Garage View User's Profile U2U Member Reply With Quote
Basically I have decided that i want a 4-2-1 manifold as i suits how i want my car to preform.
Just wondering what ones are on the market. Only ones ive seen really are the janspeed ones at about £200. These a good punt?

Drives supercharged Tec with torque
Dean_W
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Registered: 13th Dec 05
Location: Downham Market, Norfolk
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24th Oct 07 at 12:51   View User's Profile U2U Member Reply With Quote
Probably the best design for the money tbh.

Retain the hole for the SAI aswell. Straight swap.
eastend
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Registered: 13th Mar 07
Location: Taunton, Somerset
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24th Oct 07 at 14:17   View User's Profile U2U Member Reply With Quote
At europerformance they are only 179.99

http://www.europerformance.co.uk/pages/products/category_results.mhtml?category=janspeedmildsteelmanifolds&car=vauxhallcorsa&manufacturer=janspeed&sub_category=1
gavin18787
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Registered: 22nd Feb 05
Location: Basildon, Essex
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24th Oct 07 at 20:57   View Garage View User's Profile U2U Member Reply With Quote
Oh nice one

Do these hang paticularly low below the car? as my car is fairly low and i dont want it to catch etc.

Drives supercharged Tec with torque
Richardhhha
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Registered: 29th Sep 07
Location: Croydon, Greater London
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24th Oct 07 at 20:59   View User's Profile U2U Member Reply With Quote
shouldnt catch, i have a SportX 4-1 manifold and that dont catch.
Marcus_corsa
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Registered: 31st Aug 07
Location: Cornwall
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24th Oct 07 at 21:22   View User's Profile U2U Member Reply With Quote
ive got a janspeed on mine and its lowered 60mm on speedlines and manfiold def doesnt catch
gavin18787
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Registered: 22nd Feb 05
Location: Basildon, Essex
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24th Oct 07 at 21:28   View Garage View User's Profile U2U Member Reply With Quote
ok cheers just that im lowered 60mm on corsa gsi wheels and i sometimes catch mine on my driveway (standard manifold but my drive is very uneven )

Drives supercharged Tec with torque
Marcus_corsa
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Registered: 31st Aug 07
Location: Cornwall
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24th Oct 07 at 21:31   View User's Profile U2U Member Reply With Quote
dont park on the driveway then, well worth getting a janspeed just to not park on the drive, good mid range gains
gavin18787
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Registered: 22nd Feb 05
Location: Basildon, Essex
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25th Oct 07 at 08:58   View Garage View User's Profile U2U Member Reply With Quote
better bet is to inform father that it needs resurfacing



So janspeed is the one to go for?

Havent heard of any other options really

Drives supercharged Tec with torque
Dean_W
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Registered: 13th Dec 05
Location: Downham Market, Norfolk
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25th Oct 07 at 09:01   View User's Profile U2U Member Reply With Quote
Yup, Janspeed is probably the best to go for.
Adam-D
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Registered: 11th May 02
Location: Cheshire
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25th Oct 07 at 09:58   View User's Profile U2U Member Reply With Quote
i had janspeed, its a ace manifold
gavin18787
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Registered: 22nd Feb 05
Location: Basildon, Essex
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25th Oct 07 at 10:35   View Garage View User's Profile U2U Member Reply With Quote
Think im sold on the janspeed

Il order one from where eastend suggested too as its cheaper then ebay

Drives supercharged Tec with torque
gavin18787
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Registered: 22nd Feb 05
Location: Basildon, Essex
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27th Oct 07 at 15:26   View Garage View User's Profile U2U Member Reply With Quote
What about pro tech as there is one for sale locally at the moment?

Drives supercharged Tec with torque
dean101287
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Registered: 22nd Jul 07
Location: Cardiff
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28th Oct 07 at 12:48   View User's Profile U2U Member Reply With Quote
heard it is a crap design and does sit low
graham16v
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Registered: 21st Jun 06
Location: Near Heathrow Airport, Middlesex
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28th Oct 07 at 12:59   View User's Profile U2U Member Reply With Quote
Pro-Tec ones are pooh m8.

They sound like there blowing and u loose alot of low end torque.
gavin18787
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Registered: 22nd Feb 05
Location: Basildon, Essex
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28th Oct 07 at 13:09   View Garage View User's Profile U2U Member Reply With Quote
aye ive had u2u's saying the same thing.


Think il stick with my origional plan of getting a janspeed one then

Drives supercharged Tec with torque
Dave A
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Registered: 10th Dec 03
Location: County Durham
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28th Oct 07 at 13:45   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by graham16v
Pro-Tec ones are pooh m8.

and u loose alot of low end torque.



no they done, as I have proven on the dyno. collector design on the protec is bad though but can be easily modded to improve it.
gavin18787
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Registered: 22nd Feb 05
Location: Basildon, Essex
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28th Oct 07 at 14:03   View Garage View User's Profile U2U Member Reply With Quote
The main thing that is putting me off of them is that they sit low and my car is quite low as it is

Drives supercharged Tec with torque
matt_aka_smiler
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Registered: 7th Dec 05
Location: Stoke-on-Trent Drives: MK4 Astra GSi Turbo
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28th Oct 07 at 14:22   View User's Profile U2U Member Reply With Quote
I have a Janspeed on mine Gavin Mainly because it kept the SAI

 
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