1990 muffler option

[Walter F.]

I was reading in a Corvette book ( Standard guide to corvette 2nd edition) that in 1990 a muffler option was available of the L98 Corvette which gave it 5 more horsepower. I dont see any such option listed in the Corvette Black book. Is this fact or fiction?

[Tom H.]

Re: 1990 muffler option

My memory is not the best, but I sure don't remember that. I have the old order guide around here somewhere.

[Tom H.]

Re: 1990 muffler option

Here's my old order guide.

[Mike E.]

Re: 1990 muffler option

Here's my old order guide.

Tom,
I noticed the ZR-1 was not shown. Was that not a RPO option in 1990?


Mike

[Tom H.]

Re: 1990 muffler option

The ZR1 order guide was a seperate deal back then. The guide I posted was for base coupe. The convertible was also seperate in the book. I just posted the coupe section since the OP specified the L98 muffler option that I was unable to locate or remember ?????

[Joe L.]

Re: 1990 muffler option

I was reading in a Corvette book ( Standard guide to corvette 2nd edition) that in 1990 a muffler option was available of the L98 Corvette which gave it 5 more horsepower. I dont see any such option listed in the Corvette Black book. Is this fact or fiction?

Walter------


It was not an option, per se. It related to whether coupe or convertible and rear axle ratio. All convertibles as well as coupes with 2.59:1 axle ratio were rated at 245 HP and used different and more restrictive mufflers. Coupes with 3.07:1 or 3.33:1 axle ratios were rated at 250 HP and received less restrictive mufflers.