What are all the possible peformance option'* availble for the series 1 3800. What is every upgrade possible??????????? EVERYTHING costly or cheap

first off ditch all of the bosch crap

A ADTR intake
Msd coils
exhaust flowmaster F-body muffler
high flow or no cat
nitrous???
there isnt much for N/a motors

There will be no more ADTR intakes, and they weren't a complete solution either.

MSD coils don't get any more performance over stock, and aren't as reliable

High flow cat, muffer, intake are the basics to get the engine breathing better.

After that you can go wherever, a PCM upgrade if you're a 92-93 is the easiest next, 94-95 need custom ones most of the time, rockers or a cam next, P&P heads, new valves. There are head kits, and possibly a stroker kit, by a company called eagle.

Anything you'd want to do to an L27 is possible, you just can't buy it all at one store online.

Wanna spend the cash? Get a CSC or Turbo.

dont waste your $ on a L27 that why im waiting for a L67

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You can get well above an L67 easy in the L27.

L27 performance mods.....

Allmachtige = nuff said

Correct, there will be no more ADTR intakes.
MSD coils do gain performance if you have a good wireset and plugs. You'll feel more mid-range hp (a little....maybe 5hp) but do work better with a full performance ignition solution. The MSD Quality was only suspect on one production run when they were on heavy backorder. Accel coils are notoriously flaky, MSD are not.

The rest of this is right on the money. Intake, exhaust, chip, valvetrain/heads.

And then big shots of the laughin gas Are MSD coils worth it imo no, but they can help when your running mods and don't have a fully custom computer.

Here'* how I look at it. A spark is a spark, properly gapped plugs are more important then coils, and those are free.

MSD coils put out a hotter spark than stock coils