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On Friday I replaced my stock midpipe with a Challenge Stainless Steel midpipe and swapped the Nissan transmission oil for the Willall product.

Challenge Midpipe:

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Willall Transmission Fluid:

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The GTR up on the lift:

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Old midpipe:

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New midpipe installed:

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Rear Carbon tray:

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As others have reported, the GTR now sounds awesome under acceleration and when blipping the throttle on down changes. The transmission seems quieter with the Willall TM oil.

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https://www.sau.com.au/forums/topic/280678-midpipe-and-transmission-oil-swap/
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Nice man, looks like a nice pipe. I'm really wanting to get a Ypipe upgrade too but worried about excessive drone or sound. Want a nice grown but not a big drone. Is this a good pipe a good sound that isn't annoying with its drone at daily driving? Everything runs smooth after install?

Everything was fine after install - no warning lights or anything which isn't surprising as the exhaust sensors are located upstream of the midpipe. I chose this midpipe because it had no reports of drone. I would recommend you listen to some midpipes to settle on the one that sounds right for you. I would be happy to meet up if you want to listen to mine.

Everything was fine after install - no warning lights or anything which isn't surprising as the exhaust sensors are located upstream of the midpipe. I chose this midpipe because it had no reports of drone. I would recommend you listen to some midpipes to settle on the one that sounds right for you. I would be happy to meet up if you want to listen to mine.

Awesome glad to hear everything runs well after install. The R35 so needs a proper exhaust growl and might as well throw a Ypipe on the JDM's make them even more special. I'd really appreciate coming up for a visit to Brisbabe in a couple of weeks once I get my 35 back. (should get my car back this week all going well, got delayed need a Con3 to tweak clutches as there too tight. But appears you were right about someone getting a Con3 in QLD which is a godsend ;-)

Hit you up in PM once i get my car back. Cheer man

I must say one thing that surprised me was the weight of the factory midpipe. It weights about 20kg, the Willall one I bought weights about 10.

Congrats on the mod, I am getting the trans and diff oil replaced with the willall stuff next week. Good to hear the positive feedback.

Cheers.

  • 6 months later...

I think the Challenge Mid pipe cost me approx. US$625 plus shipping. Before I bought my car I asked Nissan whether fitting a midpipe would cause issues with my warranty. The salesman informed me that it could affect my warranty.

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