Exhaust size

[MaxPowers_68]

Does anyone know the size of the stock exhaust system on a 91 geo tracker? Im hoping to take out the cat and the muffler. Thanks.

[MaxPowers_68]

The one on the calmini.com is a 2" manderal bend... is that the same size as the stock exhaust... ANYONE!!!

[98tracker]

Originally Posted by MaxPowers_68

The one on the calmini.com is a 2" manderal bend... is that the same size as the stock exhaust... ANYONE!!!

stock is 1 3/4" 2' is aftermarket size i have a 2' cat back with a turbo muffler on my 98 tracker along with the performance header from calmini

[MaxPowers_68]

I emailed calmini to see if they knew the stock size and they said it was a 1.5.

[MaxPowers_68]

So does anyone know the real size cause were gonna do a custom exhaust on my geo tracker.

[98tracker]

Originally Posted by MaxPowers_68

I emailed calmini to see if they knew the stock size and they said it was a 1.5.

either way u want to put a bigger exhaust on it the 1.5" chokes the life out of these engines and the 2" is perfect i had a 2.5" but it was too big i actually lost power so i dropped down to 2" and damn what a difference. invest in a header also, it improves power by about 10%...i have the header from calmini, i also bought their hardtop, anti sway bars, and steering stabilizer/truss bar so i know all about calmini. great company!!!