This document outlines a process for improving the power and torque of a 2012 Toyota Prado GXL via ECU remapping, and an assessment of aftermarket exhaust systems. The findings detailed below suggest that the factory exhaust system is adequate for the engine.
Problem
The vehicle owner wanted to increase the power output of their 2012 Prado GXL without using a traditional chip-based solution. They also wanted to assess the value of upgrading the exhaust system.
Solution
- ECU Remapping: A custom ECU remap performed by Bayside Performance Services resulted in approximately a 30% increase in power and a 34% increase in torque across the power band.
- Exhaust System Evaluation: Dyno testing revealed that a Scott’s Rods 3" aluminised exhaust system provided little to no performance gain over the stock exhaust system.
- Recommendation: Save money by retaining the factory exhaust system.
Relevant Parts/Specs
- Tires: Mickey Thompson 265/70-17 ATZ tires were fitted to the test vehicle.
- Exhaust: Scott’s Rods 3" aluminised exhaust system.
Notes
- The ECU remap increased boost pressure by 2.7 psi.
- The tuner deliberately left a margin for towing purposes. More aggressive tuning is possible.
- Bayside Performance Services offer a custom tune with before and after dyno sheets for $1395.
- Upgraded turbo units are available, as the stock turbo is the most restrictive component for achieving greater power.
This technical summary was auto-generated based on recovered archives. Do not rely on its factual accuracy. Refer to the original thread. Source: View Original Conversation
Continue the discussion below.