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I've just fitted the Willall cat-back Titanium exhaust system in conjunction with the Cobb Accessport flash using the Willall map for 98+ RON fuel. Initially, I considered the Akrapovic system but the value, the "home-grown" support and the performance offered by Willall swayed me in their direction. After a minor glitch with a scratched Cobb screen I got to drive the end result yesterday after having my Nissan dealer fit the exhaust. I've owned tuned EVO's and Porsches, ridden Superbikes for years and driven open-wheelers at track days. None have managed to combine the noise, handling and shocking acceleration of the GTR with ca. 630+ bhp. I bought the Cobb Accessport with TCM but haven't given it the 3,300 rpm launch so wait out for more feedback.

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I've just fitted the Willall cat-back Titanium exhaust system in conjunction with the Cobb Accessport flash using the Willall map for 98+ RON fuel. Initially, I considered the Akrapovic system but the value, the "home-grown" support and the performance offered by Willall swayed me in their direction. After a minor glitch with a scratched Cobb screen I got to drive the end result yesterday after having my Nissan dealer fit the exhaust. I've owned tuned EVO's and Porsches, ridden Superbikes for years and driven open-wheelers at track days. None have managed to combine the noise, handling and shocking acceleration of the GTR with ca. 630+ bhp. I bought the Cobb Accessport with TCM but haven't given it the 3,300 rpm launch so wait out for more feedback.

What Willall tune did you get? The Stage III 98 RON one?

  • 1 month later...

I think these cars all vary a bit but I had Cobb with Willall custom tune

and just a midpipe ages ago and gained almost 25% power at the wheels.

Its hard to work out flywheel horsepower exactly but this claim does sound

quite realistic.

I have not had a chance to go in Keirs R35 since he put the new "built"

engine and turbos on it, but with over 500 awkw that makes it approx

80% increase over std power!

Totally amazing cars. And they can hook up the power which makes them all the

more impressive.

I am sure they are plenty of commodores and falcons cruising around with

500kw at the wheels these days, but whats the point if you can't put it down?

  • 1 month later...
  • 3 weeks later...

And the result is............. the 2011 model made 313 rwkw standard and jumped to 361rwkw

with the Willall midpipe and COBB tune. Thats a 15% increase!

Car feels amazing to drive now, much more mid range torque, and the power feels more linear.

Haven't had time to get up in the hills yet, but from what i have experienced so far - Amazing difference.

  • 7 months later...
  • 3 months later...

Hi Guys, I'm sure this has been covered but I could not find - what stock power is an MY09/10 R35 GTR at the wheels, before and after Mid-pipe and Stage 1 COBB tune (98RON)???

Roughly...

Cheers,

Ed

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