1998TA__1991RS

iTrader: (23)

would i have problems with my car being lowered on 18"wheels with BMR springs, i can have the duals made with dumps for 200$

5POINT7

I'm lowered 1.3" with the Eibach ProKit with 17" wheels w/o any issues. You'll be fine. The BMR springs drop 1" and and you've got a taller wheel/tire than me.

ZR2877

If you are lowered 2" it will be very low. Mine is a 1.5" drop and mine was low enough I got pulled over for my exhaust being to low and dumping. I took it to the exhaust shop and had it raised up as much as possible (still pretty low) and ran out the back.
Most importantly you can't beat the sound of duals.

Mark98SS

iTrader: (1)

I had no issues w/Eibach Pro springs & 2.5 in true duals out the back until the 9" rear went in as the axel tubes are alot bigger. On compression the axel was hitting the left pipe where it goes up from the center of the car over the axel. Solution was stock springs. The sound is worth it, IMO.

1998TA__1991RS

iTrader: (23)

what mufflers u guys run

mrr23

iTrader: (3)

here's a dual exhaust that just about tucks up at almost stock level. the lowest point is 4.5" off the ground. my car is stock height. http://www.stealthram.com/2000pontiacformula.html then click bassani dual exhaust.

5POINT7

I use Sweet Thunder 18" stainless mufflers. Much better clearance than my old Dynomax Bullets.

UGotBeaT

I run 3" tsp true duals with eibach sportlines that lower my car 1.7".....

Its like 2 or 3 inches off the ground at the lowest point it really dont bother me that much I scrape every once a while but hardly ever, you just gotta now how take dips and bumps...but if I have people sittin in the backseats then thats a whole different story, I start scrapin everywhere thats why no one else rides with me cept for a passenger