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by 500tie » Wed Aug 26, 2009 10:38 am
Can the Prodrive backbox be fitted directly to a 3" centre section??
Sooty,
Needs a WR1 now his WRX300 is sold
Or a spec D
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by WR1 Bro » Wed Aug 26, 2009 12:03 pm
500tie wrote:Can the Prodrive backbox be fitted directly to a 3" centre section??
Not without a modifcation as the prodrive backbox is 2.5inch
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by 500tie » Wed Aug 26, 2009 12:27 pm
Ah bugger thanks Bro
Sooty,
Needs a WR1 now his WRX300 is sold
Or a spec D
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by CAVEMAN » Wed Aug 26, 2009 1:12 pm
take it to a local metal shop and either get it stretched out or cut a little off and put a reduction pipe on it.
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by WR1 Bro » Wed Aug 26, 2009 1:13 pm
Marky Mark modified my Blitz to mate with the 3inch downpipe...
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by 500tie » Wed Aug 26, 2009 1:18 pm
Ive found a company that do a nice 3" de-cat down pipe and centre cat,
They also sell a part that make the 3" piece mate with the 2.5" standard centre section.
I was wondering if i could make it go 3" all the way back to the prodrive backbox but i dont think i can so im just going to get a 2.5" centre section without the silencer in it.
Sooty,
Needs a WR1 now his WRX300 is sold
Or a spec D
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by WR1 Bro » Wed Aug 26, 2009 1:38 pm
500tie wrote:Ive found a company that do a nice 3" de-cat down pipe and centre cat, They also sell a part that make the 3" piece mate with the 2.5" standard centre section.
I was wondering if i could make it go 3" all the way back to the prodrive backbox but i dont think i can so im just going to get a 2.5" centre section without the silencer in it.
If going for a 3inch de-cat downpipe it seems a little odd to then restrict the zorts to 2.5inch?
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by jimmy » Wed Aug 26, 2009 1:54 pm
remember it has to be an exhaust company that welds it as it has to be welded with a stainless steel welder.i got a qoute by a local exhaust firm to cut my exhaust off and weld another on and they said £62 inc VAT which isnt bad
good luck
ver9 grey blobeye sti
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by Dipsy » Wed Aug 26, 2009 4:32 pm
jimmy wrote:remember it has to be an exhaust company that welds it as it has to be welded with a stainless steel welder.i got a qoute by a local exhaust firm to cut my exhaust off and weld another on and they said £62 inc VAT which isnt bad good luck
A welding shop/blacksmith can weld a exhaust aswell with mig welder with stainless wire or better looking weld Tig and stainless filler wire
05 REG JDM Sti zl
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by jimmy » Wed Aug 26, 2009 4:34 pm
Dipsy wrote:jimmy wrote:remember it has to be an exhaust company that welds it as it has to be welded with a stainless steel welder.i got a qoute by a local exhaust firm to cut my exhaust off and weld another on and they said £62 inc VAT which isnt bad good luck
A welding shop/blacksmith can weld a exhaust aswell with mig welder with stainless wire or better looking weld Tig and stainless filler wire
an mot garage said me they couldnt do it because it has to be done by s/s welding lol
ver9 grey blobeye sti
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by Dipsy » Wed Aug 26, 2009 6:10 pm
jimmy wrote:Dipsy wrote:jimmy wrote:remember it has to be an exhaust company that welds it as it has to be welded with a stainless steel welder.i got a qoute by a local exhaust firm to cut my exhaust off and weld another on and they said £62 inc VAT which isnt bad good luck
A welding shop/blacksmith can weld a exhaust aswell with mig welder with stainless wire or better looking weld Tig and stainless filler wire
an mot garage said me they couldnt do it because it has to be done by s/s welding lol
They could of welded it with ordinary mild steel but the weld would rust
05 REG JDM Sti zl
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by 500tie » Wed Aug 26, 2009 7:29 pm
Just looked into it a little further and im going to get a straight through 3" system and have it chopped and welded onto the prodrive backbox.
Thanks for the advice guys
Sooty,
Needs a WR1 now his WRX300 is sold
Or a spec D
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by jimmy » Wed Aug 26, 2009 8:24 pm
Dipsy wrote:jimmy wrote:Dipsy wrote:jimmy wrote:remember it has to be an exhaust company that welds it as it has to be welded with a stainless steel welder.i got a qoute by a local exhaust firm to cut my exhaust off and weld another on and they said £62 inc VAT which isnt bad good luck
A welding shop/blacksmith can weld a exhaust aswell with mig welder with stainless wire or better looking weld Tig and stainless filler wire
an mot garage said me they couldnt do it because it has to be done by s/s welding lol
They could of welded it with ordinary mild steel but the weld would rust
dont know if you've heard of them but ive heard many bad things about RMS exhaust's,they fitted my sports cat and left a bolt between my cross member which rattle and banged and gave me heart ake
good luck with your new exhaust mate
ver9 grey blobeye sti
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by WR 1mposter » Wed Aug 26, 2009 9:12 pm
500tie wrote:Just looked into it a little further and im going to get a straight through 3" system and have it chopped and welded onto the prodrive backbox.
Thanks for the advice guys
try the aps system
tailpipe almost identical
http://www.airpowersystems.com/us_spec/ ... hoe-r1.htm
2007 BMW M5 2004 Petter Solberg STi
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by WR1 Bro » Wed Aug 26, 2009 10:07 pm
If you are having a new exhaust system (down pipe and centre) why not get a back box to match?
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by jimmy » Wed Aug 26, 2009 10:37 pm
i prefer big back boxes,a 5-6" slash cut slanted to one side rocks my boat,only on a scooby tho as its like the only good sounding car about.
i know a few guy's that have taking the big back box off there car and got a smaller one and got the edge rolled like the prodrive one,not my taste but everyone's different.
i hate the oval shape that i currently have
ver9 grey blobeye sti
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by WR1 Bro » Wed Aug 26, 2009 10:48 pm
jimmy wrote:i prefer big back boxes,a 5-6" slash cut slanted to one side rocks my boat,only on a scooby tho as its like the only good sounding car about. i know a few guy's that have taking the big back box off there car and got a smaller one and got the edge rolled like the prodrive one,not my taste but everyone's different. i hate the oval shape that i currently have
Oval is just wrong. Take a hammer to it and make it round ffs
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by jimmy » Wed Aug 26, 2009 11:26 pm
no need mate,i just baught a 5" carbon catback for a mighty £5,yes thats just a fiver for a cat back in good nick
ver9 grey blobeye sti
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by MaverickUK82 » Thu Aug 27, 2009 9:54 am
Dipsy wrote:They could of welded it with ordinary mild steel but the weld would rust
Not only would it rust (corrode). But it would corrode at an alarming rate. When mixing metals in this way, a galvanic reaction occurs and the less noble metal (in this case the carbon steel) corrodes at an accellerated rate. The rate depends on the mass ratio of the metals.
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by CAVEMAN » Thu Aug 27, 2009 10:09 am
check you Mr Scientist!!
must be the brains of this operation....
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by MaverickUK82 » Thu Aug 27, 2009 10:18 am
I'm an inspector of pressure systems and inspect piping every day. One of the main things we see is where stainless steel pipe has been bolted together with carbon steel nuts and bolts which have almost corroded through totally.
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by 500tie » Thu Aug 27, 2009 11:12 am
Sod it im going to get a 3" decat at the front and onto the blitz nur spec r just hope i dont go deaf soon.
Sooty,
Needs a WR1 now his WRX300 is sold
Or a spec D
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by CAVEMAN » Thu Aug 27, 2009 12:35 pm
MaverickUK82 wrote:I'm an inspector of pressure systems and inspect piping every day. One of the main things we see is where stainless steel pipe has been bolted together with carbon steel nuts and bolts which have almost corroded through totally.
didn't realise that...I knew mixing ally with steel fixings has a bi-metallic reaction and just welds itself solid over a period of time...but didn't know SS and MS have that dramatic effect.
everday is a school day on here!
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by MaverickUK82 » Thu Aug 27, 2009 2:36 pm
Here is a photograph of a 40mm carbon steel nut & bolt, bolted though a stainless steel flange (the flange is painted so it doesn't actually look like SS).
The nut is about 7 years old, so that's how quickly carbon steel corrodes when in contact with stainless steel. I should imagine an exhaust would corrode through in less than a year.
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by jimmy » Thu Aug 27, 2009 8:18 pm
500tie wrote:Sod it im going to get a 3" decat at the front and onto the blitz nur spec r just hope i dont go deaf soon.
you'll love it mate,the louder the better
ver9 grey blobeye sti
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