This.RossDagley wrote:JCWF...ROjj wrote:I'm convinced my stock gets louder each time I drive it, if only there was a way of continuing the sound at cold start. Quickly put it into sport then back to park and blip...woof. How can I get that all of the time?!?!
Exhausts!! It's time!! Which One :-)
Re: Exhausts!! It's time!! Which One :-)
Gone but never forgotten:
2007 RS4 B7 Saloon, Metallic Silver with SS+.
LED's all round and Dectane LED tailights. KDS detail and paint. Lepsons black chrome, heavy on the silver wheels. JCWeldFab full system - valved and no pre-cats. MRC stage 2, de-flap and full carbon clean - 438PS and 489NM. HEL brake lines. H&R Spacers. Gtechniq C1 and EXO V2 coatings. 2010+ RNS-E. On the MRC dyno: http://youtu.be/y_k0VJ2--y8
2007 RS4 B7 Saloon, Metallic Silver with SS+.
LED's all round and Dectane LED tailights. KDS detail and paint. Lepsons black chrome, heavy on the silver wheels. JCWeldFab full system - valved and no pre-cats. MRC stage 2, de-flap and full carbon clean - 438PS and 489NM. HEL brake lines. H&R Spacers. Gtechniq C1 and EXO V2 coatings. 2010+ RNS-E. On the MRC dyno: http://youtu.be/y_k0VJ2--y8
Re: Exhausts!! It's time!! Which One :-)
The downpipes have some terrible restrictions too.
Re: Exhausts!! It's time!! Which One :-)
Can't wait to hear this hope it's all good quality looks amazing
Re: Exhausts!! It's time!! Which One :-)
Looking good, post up a vid when it's fitted 

Re: Exhausts!! It's time!! Which One :-)
Thanks riv ! Never tried to post a vid before so hopefully I will manage
I'm very impressed with the quality and price point thanks to the euro !
Initially wanted an akra but this was a total no brainer with currency rates . The quality looks immense
Not heard anything exhaust wise on these cars except the standard sports so fingers crossed it's great
I'm very impressed with the quality and price point thanks to the euro !
Initially wanted an akra but this was a total no brainer with currency rates . The quality looks immense
Not heard anything exhaust wise on these cars except the standard sports so fingers crossed it's great
- esp_mm-270
- 4th Gear
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- Joined: Sat Dec 22, 2012 12:22 pm
Re: Exhausts!! It's time!! Which One :-)
I'm not a welder but am wondering about the inside of the tube. As with your table the welds can be ground down to look lovely outside but how do you/they make the internal part of the weld not disrupt gas flow like the standard B8 exhaust. Just thinking about it now if the weld is proud or recessed it would disrupt flow and it's not like you can see it to check?neilparf wrote:Dents like that - can you imagine the turmoil in the gas flow through to exit...
Re: Exhausts!! It's time!! Which One :-)
Welds on the outside - the metal builds up on the weld side, not internally. I think purge pressure welding helps but looking at mine, and seeing the system starting to be built up when I was at JCWF, there's minimal weld material on the interior.esp_mm-270 wrote:I'm not a welder but am wondering about the inside of the tube. As with your table the welds can be ground down to look lovely outside but how do you/they make the internal part of the weld not disrupt gas flow like the standard B8 exhaust. Just thinking about it now if the weld is proud or recessed it would disrupt flow and it's not like you can see it to check?neilparf wrote:Dents like that - can you imagine the turmoil in the gas flow through to exit...
When I referred to the dent, I was referring to the narrowing of the tube that would upset the flow - looking at Ross' OEM system, they are rife throughout the system and I suspect that many would surely upset the flow...
Gone but never forgotten:
2007 RS4 B7 Saloon, Metallic Silver with SS+.
LED's all round and Dectane LED tailights. KDS detail and paint. Lepsons black chrome, heavy on the silver wheels. JCWeldFab full system - valved and no pre-cats. MRC stage 2, de-flap and full carbon clean - 438PS and 489NM. HEL brake lines. H&R Spacers. Gtechniq C1 and EXO V2 coatings. 2010+ RNS-E. On the MRC dyno: http://youtu.be/y_k0VJ2--y8
2007 RS4 B7 Saloon, Metallic Silver with SS+.
LED's all round and Dectane LED tailights. KDS detail and paint. Lepsons black chrome, heavy on the silver wheels. JCWeldFab full system - valved and no pre-cats. MRC stage 2, de-flap and full carbon clean - 438PS and 489NM. HEL brake lines. H&R Spacers. Gtechniq C1 and EXO V2 coatings. 2010+ RNS-E. On the MRC dyno: http://youtu.be/y_k0VJ2--y8
- esp_mm-270
- 4th Gear
- Posts: 624
- Joined: Sat Dec 22, 2012 12:22 pm
Re: Exhausts!! It's time!! Which One :-)
Ok but with the many pieces of exhaust wouldn't the internal side of the welds be recessed rather than smooth then? As apposed to a one piece tube bent? Or are these less likely to mess up the flow than the stretching of bent pipe? If you see what I mean Neil?
Not poo pooing just I see this and just wondering of the effects
Not poo pooing just I see this and just wondering of the effects

Re: Exhausts!! It's time!! Which One :-)
I like it!
lots and lots, no time served. It’s gets funnier, from yesteryears cars to ones due in months 

- RossDagley
- Top Gear
- Posts: 2334
- Joined: Mon Mar 17, 2014 11:53 pm
- Location: Bedford, UK
Re: Exhausts!! It's time!! Which One :-)
I agree. I like her too!
Believe only the man who has nothing to gain from what he says.
2017 BMW M4 Competition Pack - Mineral Grey - 530ps by bootmod3, JCWeldfab exhaust.
Previously:
Renault Megane R26 - Liquid Yellow - 275ps.
2015 Audi Exclusive RS4 B8 - Merlin Purple - JCWF Exhaust
2009 Audi RS6 C6 - Phantom Black - 730ps MRC Tuned
2008 Audi RS4 B7 - Phantom Black - 449ps MRC Tuned
2002 Peugeot 106 Gti - Mauritius blue - 430ps Home built.
2017 BMW M4 Competition Pack - Mineral Grey - 530ps by bootmod3, JCWeldfab exhaust.
Previously:
Renault Megane R26 - Liquid Yellow - 275ps.
2015 Audi Exclusive RS4 B8 - Merlin Purple - JCWF Exhaust
2009 Audi RS6 C6 - Phantom Black - 730ps MRC Tuned
2008 Audi RS4 B7 - Phantom Black - 449ps MRC Tuned
2002 Peugeot 106 Gti - Mauritius blue - 430ps Home built.
Re: Exhausts!! It's time!! Which One :-)
I know mark - no poo hereesp_mm-270 wrote:Ok but with the many pieces of exhaust wouldn't the internal side of the welds be recessed rather than smooth then? As apposed to a one piece tube bent? Or are these less likely to mess up the flow than the stretching of bent pipe? If you see what I mean Neil?
Not poo pooing just I see this and just wondering of the effects

From what I've seen the internal weld of a pipe is so minimal. Purge welding with Argon gives a flatter inner seam. When welding stainless steel, titanium and other corrosion-resistant materials, it is important to create a perfect weld environment in order to retain the desired corrosion resistance and to eliminate weld contamination. During welding, the heated weld seam is exposed to air and oxidizes if it is not protected. By filling the welded tube with argon, the internal portion of the tube is protected from the oxidizing atmosphere. This gives a weld that is structurally superior and lays flatter for less exhaust flow turbulence
All JCWF's are Argon Purged...
Gone but never forgotten:
2007 RS4 B7 Saloon, Metallic Silver with SS+.
LED's all round and Dectane LED tailights. KDS detail and paint. Lepsons black chrome, heavy on the silver wheels. JCWeldFab full system - valved and no pre-cats. MRC stage 2, de-flap and full carbon clean - 438PS and 489NM. HEL brake lines. H&R Spacers. Gtechniq C1 and EXO V2 coatings. 2010+ RNS-E. On the MRC dyno: http://youtu.be/y_k0VJ2--y8
2007 RS4 B7 Saloon, Metallic Silver with SS+.
LED's all round and Dectane LED tailights. KDS detail and paint. Lepsons black chrome, heavy on the silver wheels. JCWeldFab full system - valved and no pre-cats. MRC stage 2, de-flap and full carbon clean - 438PS and 489NM. HEL brake lines. H&R Spacers. Gtechniq C1 and EXO V2 coatings. 2010+ RNS-E. On the MRC dyno: http://youtu.be/y_k0VJ2--y8
- esp_mm-270
- 4th Gear
- Posts: 624
- Joined: Sat Dec 22, 2012 12:22 pm
Re: Exhausts!! It's time!! Which One :-)
Beautiful, thanks Neil. I used to fill welding gas bottles for boc using co2, argon and helium. Understand their use a bit now 

Re: Exhausts!! It's time!! Which One :-)
esp_mm-270 wrote:Beautiful, thanks Neil. I used to fill welding gas bottles for boc using co2, argon and helium. Understand their use a bit now


Gone but never forgotten:
2007 RS4 B7 Saloon, Metallic Silver with SS+.
LED's all round and Dectane LED tailights. KDS detail and paint. Lepsons black chrome, heavy on the silver wheels. JCWeldFab full system - valved and no pre-cats. MRC stage 2, de-flap and full carbon clean - 438PS and 489NM. HEL brake lines. H&R Spacers. Gtechniq C1 and EXO V2 coatings. 2010+ RNS-E. On the MRC dyno: http://youtu.be/y_k0VJ2--y8
2007 RS4 B7 Saloon, Metallic Silver with SS+.
LED's all round and Dectane LED tailights. KDS detail and paint. Lepsons black chrome, heavy on the silver wheels. JCWeldFab full system - valved and no pre-cats. MRC stage 2, de-flap and full carbon clean - 438PS and 489NM. HEL brake lines. H&R Spacers. Gtechniq C1 and EXO V2 coatings. 2010+ RNS-E. On the MRC dyno: http://youtu.be/y_k0VJ2--y8
Re: Exhausts!! It's time!! Which One :-)
Here's a few of my Cap:Afsimba wrote:Not heard anything exhaust wise on these cars except the standard sports so fingers crossed it's great
https://www.youtube.com/user/exclusiveNo1/videos
Still loving it - you won't be disappointed.

It's all torque talk.
Re: Exhausts!! It's time!! Which One :-)
Hi
Any update and picture on the JCWeld exhaust?
Any update and picture on the JCWeld exhaust?
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