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EOI: New exhaust collector pipe

Posted: Tue Jun 16, 2009 12:12 pm
by Bennoz
Hey guys,

When my car is finished off in the next week or 2, I'll be dropping Kaz's GPX down to have a new exhaust put on. In doing so we are going to make a new collector pipe - from the headers to the cat. As we all know the standard collector pipe is very restrictive & the 2 banks join in somewhat of a collision point.

Now UAS have a product like this (pictured below) but @ $700 its not really the best bang for buck...

Image

When we make one up for Kaz's car, if there is enough interest, i'll make a jig for it so we can churn out a number of these things at a reasonable price. We are also looking to do a deal where you can buy both the pipe & high flow steel cat to suit.

On its own, the pipe gives 4-5 atwkw gain, couple that with a high flow cat, you're looking at 10-12atwks. Its the best bang for buck exhaust mod you can do, short of replacing the whole system. I'll be doing dyno test results with Kaz's car.

It will be a direct bolt on fit for a GPX, and will only require a flange modification to suit a GR.

If you already have RPW extractors, then they wont be of use to you as they come with a good collector pipe.

So, if you are interested, let me know! I've not got prices yet & wont until we make one, but I'd say it'll be around the $400 mark.

Posted: Tue Jun 16, 2009 1:07 pm
by harry90
Im in depending on final price.

Posted: Tue Jun 16, 2009 1:23 pm
by Eltnot
I'm interested pending final price.

Posted: Tue Jun 16, 2009 2:17 pm
by Valandis91
so your saying the RPW collecter pipe which has the the sweeping bend from the headers to the normal pipe (you know what i mean?) is as good as the UAS one or similar?
the UAS one looks a lot smoother and higher flowing than the RPW cos the rear collector has to do a 180 degree turn with the RPW one..

Posted: Tue Jun 16, 2009 2:49 pm
by Bennoz
Im not comparing RPWs with UAS pipes at all. Im saying that these will not fit on a car that has rpw extractors.

Posted: Tue Jun 16, 2009 3:00 pm
by Valandis91
ohhh i get you....
are the RPW collector pipes any good though?

Posted: Tue Jun 16, 2009 3:42 pm
by aza013
I am interested pending price as well.

Posted: Tue Jun 16, 2009 4:50 pm
by Jamie
Are they compatible with other brand extractors? If so could you let me know what brand. The reason I ask is I have a GR and have had a new 2.5" cat back system put on. The plan was to do my exhaust in 2 stages, cat back then collector pipe and extractors. Cheers ;)

Posted: Tue Jun 16, 2009 7:05 pm
by FTO_GPvR
Hi club,
sorry to sound noob but im confused, i dont this, can you help me out thanks
alright
with the exhaust does it start from the headers to the extractors to downpipe to pipe to catback lol i reckon its all wrong what i just wrote, i need help lol
so from where does it start from to when does it finish
because people on this club have a 3inch exhaust all the way whats that

again sorry for any trouble

thanks club

Posted: Tue Jun 16, 2009 8:50 pm
by yoshiba
I'm also interested. Pending on final price.

Posted: Tue Jun 16, 2009 10:46 pm
by Astron_Boy
FTO_GPvR wrote:Hi club,
sorry to sound noob but im confused, i dont this, can you help me out thanks
alright
with the exhaust does it start from the headers to the extractors to downpipe to pipe to catback lol i reckon its all wrong what i just wrote, i need help lol
so from where does it start from to when does it finish
because people on this club have a 3inch exhaust all the way whats that

again sorry for any trouble

thanks club
Headers-collector-cat-mufler-pipe-muffler-tip.

Not every car is the same, but for the FTO that's how it is.
This replacement part being the collector.
Hope that helps you.

Posted: Tue Jun 16, 2009 10:49 pm
by FTO_GPvR
Astron_Boy wrote:
FTO_GPvR wrote:Hi club,
sorry to sound noob but im confused, i dont this, can you help me out thanks
alright
with the exhaust does it start from the headers to the extractors to downpipe to pipe to catback lol i reckon its all wrong what i just wrote, i need help lol
so from where does it start from to when does it finish
because people on this club have a 3inch exhaust all the way whats that

again sorry for any trouble

thanks club
Headers-collector-cat-mufler-pipe-muffler-tip.

Not every car is the same, but for the FTO that's how it is.
This replacement part being the collector.
Hope that helps you.
ok mate your a champ :D
thats cleared things up
so with all this Headers-collector-cat-mufler-pipe-muffler-tip u can get 3inch for all of these and it would be a 3inch all the way exhaust system is that right?
howcome theres 2 mufflers in the list?
and also what about the extractors there not there in the list?

cheers,
Tyson

-EDIT DONE-

Posted: Tue Jun 16, 2009 11:01 pm
by Bennoz
3 inch is too big for the FTO, you'll loose back pressure & therefore power if you make the entire system from 3 inch. Standard FTO size is 2.25 inch, the best upgrade size is 2.5 inch. You can have whatever tip size you like, it makes no difference to performance.

The first muffler is actually a resonator. It helps quieten the noise down.

There are no extractors involved in this, its simply a 2.25 inch stock collector pipe replacement. Its bolts directly to the FTO cast iron headers & cat.

Posted: Wed Jun 17, 2009 11:42 am
by FTO_GPvR
Bennoz wrote:3 inch is too big for the FTO, you'll loose back pressure & therefore power if you make the entire system from 3 inch. Standard FTO size is 2.25 inch, the best upgrade size is 2.5 inch. You can have whatever tip size you like, it makes no difference to performance.

The first muffler is actually a resonator. It helps quieten the noise down.

There are no extractors involved in this, its simply a 2.25 inch stock collector pipe replacement. Its bolts directly to the FTO cast iron headers & cat.
Ok thanks Ben for the info
I might be interested in it :D

Posted: Sat Jul 25, 2009 3:35 am
by pete_gpx
I'm interested to know how this is going. Any progress or information on whether or not this will go ahead?

Posted: Sat Jul 25, 2009 11:24 am
by Bennoz
Definitely going ahead, the hold up is my car. When its finished, Kaz's car goes in for this :)

Posted: Sat Jul 25, 2009 11:35 am
by aza013
Cool so what after market headers will fit on to these?
Will they have to be a custom set?

Posted: Sat Jul 25, 2009 1:00 pm
by alekazam
OK Im in two if thay fit hurricane extractors

Posted: Sat Jul 25, 2009 4:54 pm
by aza013
alekazam wrote:OK Im in two if thay fit hurricane extractors
as far as I know the Hurricane extractors are the same as the RPW ones as RPW copyed them.

Posted: Sat Jul 25, 2009 9:01 pm
by koolio1234
aza013 wrote:Cool so what after market headers will fit on to these?
Will they have to be a custom set?
I'd like to know this as well. In case we decide to upgrade the headers later on.