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The custom SS split dump on my 240Z has been wrapped for 5 years and still looks like new - and has no cracks. Having said that, the mild-steel dump that I used to have on my MR30 Skyline was rusted beyond repair after 4 years.

This is not surprising of course. I would seek a metalurgists perspective on this, but I'd rather repair/replace a $200 dump every 10 years than lunch the engine after a major coolant leak, or melting something important (like the battery on my Z!)

If you don't want to wrap the pipe, at least consider shielding adjacent components. Exhaust systems will melt paint - wiring & hoses are long gone by that point!

Edited by BensDR30
  • 3 weeks later...

Soooooo, I was just about to order a JJR bell mouth front & dump pipe next week, and my friendly local speed shop phones me and say they have a 3" mild bell mouth (HPC coated) dump and front from a R32 for me for $125. I know it'll fit my turbo but can people see any fitment issues? I'm a welder by trade so I can slice and dice and weld where I have to to get a perfect fit, and it's $100 cheaper than a new mild bell mouth from JJR by the time I pay for delivery.

Thanks in advance, Greg.

Soooooo, I was just about to order a JJR bell mouth front & dump pipe next week, and my friendly local speed shop phones me and say they have a 3" mild bell mouth (HPC coated) dump and front from a R32 for me for $125. I know it'll fit my turbo but can people see any fitment issues? I'm a welder by trade so I can slice and dice and weld where I have to to get a perfect fit, and it's $100 cheaper than a new mild bell mouth from JJR by the time I pay for delivery.

Thanks in advance, Greg.

the JJR is a multifit item for what its worth...

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