Take Caution

Refer to this thread.

Summarizing potential issues and assuming that the parts are quality:

  • A universal kit has no guarantee of fit for your car.
  • Many of the kits lack installation guides and assume the buyer will inherently know how to install it.
  • Most of these kits lack fueling and timing components. Even if the hardware is complete, it's incorrect to assume the car can be driven is boost.
  • The term "Bolt-On" typically refers to a pre-designed kit that easily bolts onto a specific system. If the kit includes parts assuming the user will figure it out (such as intercooler pipes), it's closer to a universal kit.
  • Parts could be good quality, but inappropriate sizes for the intended vehicle, such as incorrectly sized turbo, incorrectly sized intercoolers, inappropriately sized lines.
  • Some kits may leave out critical pieces. Again, while it's quite possible the kit could be made usable, the buyer should have a clear understanding of a full turbo kit, have a design in their head, and ensure all parts are present in the auction lot.
  • Overall most of the risks above basically mean the buyer should already be very familiar with Turbo kits to evaluate it and understand what parts need to be added, swapped or replaced. In short, it's not a good option for turbo newbies.


  • If intending a budget build, eBay can be a viable source. But very likely, you'll need to research forums for parts that are of known quality, such as the turbo, manifold, intercooler - then piece it together. As you add parts to the budget, include hidden costs, such as shipping for each individual item.
  • All budgets should include fuel and timing management.
  • If you're unsure about your turbo setup, consider looking at an introductory off-the-shelf kit, and accounting for equivalent parts as a guide.
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