1990 Toyota Corolla Downpipes

1990 TOYOTA COROLLA
80,000 MILES • 4 CYL • FWD • MANUAL
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JACKOLSON
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Hi,

Do you have any info on specs for a downpipe system for a 1.6L 4cl engine?

Engine is 1.6L 4cl DOHC

I'm planning to install new headers, a 4-1 type header
What diameter should I use for the headers pipes?

I'm running it to a downpipe, no muffler, no resonator.
What diameter should I use for the pipe?
It will just be a straight pipe from the header collector end.

Thanks and more power.
Jack
Aug 30, 2009 at 6:55 AM
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MMPRINCE4000
  • ✓ASE Certified Mechanic
  • 8,548 POSTS
  • ASE Certified Mechanic
I would go no larger than 1.5" on header pipes.

You could also check with TRD (Toyota Racing Development) and see if they offer a factory header.
TRD parts are available from Toyota.
Aug 30, 2009 at 8:24 AM
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JACKOLSON
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  • 67 POSTS
Thanks man.
Aug 30, 2009 at 11:08 AM
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MMPRINCE4000
  • ✓ASE Certified Mechanic
  • 8,548 POSTS
  • ASE Certified Mechanic
You are welcome.
Aug 31, 2009 at 8:29 AM
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