Georgia Fiero Club Forum

All Things Fiero => General Fiero Discussion => Topic started by: Roger on August 14, 2016, 06:17:23 pm

Title: 'Y' pipe
Post by: Roger on August 14, 2016, 06:17:23 pm

Please can someone explain the definitive difference between the '87 and '88 exhaust 'Y' pipe?

Title: Re: 'Y' pipe
Post by: Fierofool on August 14, 2016, 06:41:54 pm

The 88 pipe was moved away from the engine by a few inches, but the main difference is that the down pipe approaches the head pipe flange at a different angle.  The two years won't bolt together.  I think the 88 down pipe may also be a little shorter.  That's what I remember Ashby telling me.

Title: Re: 'Y' pipe
Post by: Roger on August 14, 2016, 08:23:01 pm

So how do I tell the difference between the two?

Title: Re: 'Y' pipe
Post by: Fierofool on August 14, 2016, 08:53:43 pm

The 88 will have the dimpled heat shield.  Should the shield be missing, the egr valve base will be tipped to the drivers side on about a 45° angle.  85-87 egr valves stand more upright.

The 88 Oh-2 sensor points to the rear of the car, just above the flange while earlier sensors point toward the passenger side.