All Things Mk5 > Performance Modifications
Pipewerx 3" Exhaust Down Pipe High Flow Sports Cat Help
grumpy:
Hi mate,
not sure if you've seen this bit of info but it helps explain the importance of a free flowing exhaust system. Yes I think the main restriction is at the front end but if you want your motor to flow fully then a free flowing rear system helps.
Thanks.
http://r-techperformance.co.uk/2-0-tfsi-stage-1-guide/
rashg60:
After months of deliberation I have finally placed my order for the exhaust......and I've not gone for the Pipewerx one!
After reading many reviews and other people's comments I have decided to go for the BCS full Powervalve system. A lot more money but I didn't want to regret it later. I am booked in with Nige in 2 weeks time and cannot wait.
I had the stage 1 R-Tech remap done about 6 months ago, would people recommend getting it remapped again after the exhaust system has been fitted? I am going for the 200 cell sports cat instead of a decat for MOT reasons.
Has anyone else got this system and what sort of power is expected? With the stage 1 map I am running 247bhp.
Any help/advice would be appreciated.
AJP:
I'd certainly go for a map tweak once the BCS is fitted, I'm pretty sure I've read the full turbo-back is good for 20+bhp with a map that takes it into account.
With an inlet on top you'd be at what's usually recognised as Stage 2, so being halfway there hardware-wise I'm sure a tweak to the map can get the best out of the BCS alone.
An uprated pump like Loba or APR would make things better still. Not cheap, but a good increase in midrange. You wouldn't see a massive peak bhp gain, but with the BCS you'll gain torque across the rev range, and that's what counts.
rashg60:
Thanks AJP - not sure what inlet you are referring to?
I was secretly hoping the exhaust would let me get to stage 2 comfortably. How easy are the fuel pumps to fit?
AJP:
--- Quote from: rashg60 on October 12, 2015, 09:04:18 pm ---Thanks AJP - not sure what inlet you are referring to?
I was secretly hoping the exhaust would let me get to stage 2 comfortably. How easy are the fuel pumps to fit?
--- End quote ---
As in Evoms, ITG Maxogen etc. Personally, I don't think they're that necessary unless you're chasing max peak hp numbers. Plenty of people on here saying they lose a bit of low-end torque, sound chavvy etc.
I wouldn't worry too much about having exactly the right hardware for 'Stage 2' - This 'Stage' thing is just a name at the end of the day. A car with an uprated HPFP, turboback and aftermarket inlet isn't going to be completely different to an identical spec car with the factory inlet. And as R-Tech's maps are truly custom you'll get the best software for your hardware, and you can call it Stage whatever you like..
Obviously there are generic Stage 2 maps that other tuners offer that will be designed to work with certain hardware - more often than not this would necessitate an aftermarket inlet. But that's irrelevant when you're getting a bespoke map at R-Tech.
As it happens, I'm Stage 1 R-Tech, and if I decide to go for more an uprated HPFP and turbo back will be how I do it. (Also looking at a hybrid k03 but that's another story..)
Should make for a very drivable, torquey car.
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