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An unfortunate price hike due to several factors but has been delayed for the last couple of years and something we've been arguing against with them over the years. The original design intent for the A-350 was to make this the lightest possible header available on the market. Fabrication also requires ACE to shutdown an entire production line of boutique exhaust parts that are highly sought after for their customer base in order to produce one header at a time. This loss of output for one header is also factored into their bottom line. The 86 is considered a pet project for them and a boutique product offering a fat powerband between 3-7k RPM. It's still not the most expensive header available on the market, but it does offer one of the most useful powerbands for stock redline application.
Additionally, thicker flanges, cost of materials, changes in fabrication processes, and increasing labor costs with limited availability of properly trained welders in their processes has made them finally increase the total cost of the product.
We offer ACE, JDL, TOMEI, TODA, AUTO FACTORY, Fujitsubo, etc. In the spirit of the OP and thread topic, the benefits of the ACE is a fat powerband within stock redline, high precision and high quality product utilizing thin wall tubing and detailed welding procedures to create the merge sections. Hardware wise, we've seen many have issues during installation but none have come from our location. Those who check torque after heat cycling and making sure the flanges mate properly while crushing the gaskets more evenly have found significant improves in consistency and longevity. It's more of a tedious process due to additional checks, but well worth the efforts for the long run.
Paired with our calibration work, we've been constantly updating the base calibration files for each setup to pull from each exhaust manifold's strengths. Based on availability, budget, and goals, we are able to provide recommendations bespoke to your application.
If you have any questions, don't hesitate to e-mail us! Thank you!
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