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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 03-08-2007, 11:46 PM   #1
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Will be installing er rockers as a part of my mods along with an intense PCM. What exhaust mod is needed to support the er rockers?
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Old 03-08-2007, 11:47 PM   #2
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PEM'* or *.*. headers.
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Old 03-08-2007, 11:47 PM   #3
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Get some ported exhaust manifolds for starters (highly doubt he really NEEDS the headers at this point and they're a LOT more money). You might want to consider a Magniflow high-flow cat too.

If you're currently stock, you really should think about upgrading your intake too.
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Old 03-08-2007, 11:49 PM   #4
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Default ER Rockers

Are the PEM'* necessary or will a hi flow cat do the job.
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Old 03-08-2007, 11:50 PM   #5
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The front manifold is the most restrictive part of the exhaust on a series II engine, so I'd probably start there. Magnaflow cats are relatively cheap anyway.
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Old 03-08-2007, 11:51 PM   #6
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Theres a lot to gain by getting the pem'*, bit of work but not much money.
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Old 03-08-2007, 11:52 PM   #7
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Is it a big job to get the EM off? Who sells PEM'*? Planning on doing the LIM gaskets and possible ported LIM. I guess this would be the time to tackle the EM?
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Old 03-09-2007, 12:00 AM   #8
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Dillc,
Will be porting the LIM. How do you mean the "front" manifold?
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Old 03-09-2007, 12:01 AM   #9
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Just to throw it out there...If you're already planning to the the (I hope aluminum framed) LIM gaskets, you should consider getting an APN upper intake kit and prevent the eventual upper intake failure.

Ported EXHAUST Manifold = PEM. Both front and rear.

Be VERY careful if you're thinking about porting the Lower INTAKE Manifold as done by some members recently on the forum.
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Old 03-09-2007, 12:04 AM   #10
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Good point, Dillers. No modifications should be made to an L36 until:

1. The upper intake manifold is replaced with a Dillon, APN, or Dorman replacement including a reduced-diameter stovepipe.

2. LIM gaskets replaced with aluminum framed design from INTENSE, ZZP, or GM.

3. Fully flushing the DEX from the engine, and replacing it with Dex compatible prestone long-life.

Failure to follow the above advice will eventually result in your car failing you at a very important time, or costing you your entire engine.
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