With the cheaper headers where three of the pipes on the driver's side go under the steering link be prepared to crawl over every bump you encounter. It's not a matter of if, but when you smack the header on the ground. F/J/M cars only had one spring rate from the factory (even the cop cars) - something pitiful like 140 lbs or close to it.

I destroyed a set of Hooker's on my car daily driving them over seven years in Michigan summers. What finally cured it was a set of torsion bars from Firm Feel. I went with their 300# bars and never bottomed the car again.

Honestly, you might want to think about going cheap on the headers and tossing the money into the bars. Aside from not bottoming, the increased spring rate up front makes it a blast to drive.


1987 Fifth Avenue - 512/518/D60