The MAP Tubular Manifold for the Evolution X platform is now available, look for information in regards to pricing and availability in the near future! In the meantime check our some of the features and benefits below!
- Direct replacement for stock frame Evo X turbochargers
- 1.25" primaries for maximum velocity and spool characteristics
- Schedule 10 304SS tubing for the utmost in durability
- 304SS flanges featuring a CNC transition from cylinder head to primaries
- Available in semi-polish (pictured) or with our advanced ceramic coating
- Finish porting of CNC transition to primaries and merge collector
- Fully backpurged TIG welded construction
- Fits with OEM firewall heatshield
- Lifetime warranty against defects to the original purchaser
Does this still use the twin scroll benefit?
For some reason, I blame monday... but I cant seem to phrase it correctly. I just want to make sure that the twin scroll feature of our stock turbo isnt lost by upgrading to this.
It is not equal length, and in the initial testing there was a 400rpm difference in spool but the dyno runs were started at different points, I would really like to see some more results before assuming that will be the situation with every application.
To expand upon the equal length discussion I've seen some arguments that adding bends and/or length to a manifold to make it equal length actually diminishes performance. I did some quick searching and couldn't find any comparisons between an equal length tubular manifold and non-equal length equivalent, let alone on a twin scroll configuration. I did find an EL ramhorn vs a log style manifold, but the collector angle and runner length most certainly played a part in that comparison. The purpose of an equal length manifold is to ensure that exhaust pulses don't interfere with each other, and in a twin scroll application with only one companion cylinder and 180 degrees of separation I don't foresee that ever being an issue.
I'll have a thread on this in a few days but I will have a direct comparison of a ported stock manifold vs the tubular sexiness in the picture on page one (Thats my Mani)
What MAP does with their special way to port the stocker will cover 90% of what most people need to make the power they can.
This thing is worth every penny! I just about cried when we did the before/afters on my car on the dyno, the top-end is really noticeable on the street, but the loss down low is hardly perceivable once you have an upgraded snail.
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