Subaru Enthusiasts Car Club of the Sierras - View Single Post

Dean · 2011-03-18, 02:33 PM

Skip the headers other than considering a GrimmSpeed crossover with or without P&P the stock castings. Uppipe rattle is likely just the heat shield tack weld having failed (Common problem) and is a 5 minute fix by a welder.

Only wrapped headers really crack. If you really want to try some UEL headers, I have some "MadDad" branded, GT Spec II/Tomei/XXX brand (they are all the same) with uppipe you can have for $200. No cracks and they make good power higher in the RPM range. Here is a Nasioc thread with a review, Dyno before and after, etc..

Stock internals will last 100-120K or so on a Cobb stage 2 tune with some track use. A lot less with ANY detonation. The biggest killer of the stock internals is detonation that breaks the second ring land on the pistons. Run a conservative tune no matter what you do and budget that you will have to rebuild/replace the short block at some point with one with forged pistons.

You might also consider Paul@DBTuned(Dyno Sac) or Matt@KSpeed(Local Sparks) for your tune. Both are probably a little more conservative and cheaper than GST and closer for changes/mod changes.

2011-03-18, 02:33 PM	#13
Dean Señor Cheap Bastarde Real Name: Dean Join Date: May 2003 Location: $99 Tire Store Posts: 9,294 Car: $.04 STI Class: Fast,Cheap & Reliable=STI Deal, did somebody say Deal? Oh, Dean, yeah that's me.	Skip the headers other than considering a GrimmSpeed crossover with or without P&P the stock castings. Uppipe rattle is likely just the heat shield tack weld having failed (Common problem) and is a 5 minute fix by a welder. Only wrapped headers really crack. If you really want to try some UEL headers, I have some "MadDad" branded, GT Spec II/Tomei/XXX brand (they are all the same) with uppipe you can have for $200. No cracks and they make good power higher in the RPM range. Here is a Nasioc thread with a review, Dyno before and after, etc.. Stock internals will last 100-120K or so on a Cobb stage 2 tune with some track use. A lot less with ANY detonation. The biggest killer of the stock internals is detonation that breaks the second ring land on the pistons. Run a conservative tune no matter what you do and budget that you will have to rebuild/replace the short block at some point with one with forged pistons. You might also consider Paul@DBTuned(Dyno Sac) or Matt@KSpeed(Local Sparks) for your tune. Both are probably a little more conservative and cheaper than GST and closer for changes/mod changes. __________________ I am a Commodore PET --- Now get off my lawn you kids...