Stiffer springs , same height

[zellamay]

Suppose I wanted stiffer springs on my 98 Z3M , like H&R, but didn't want to lower the car very much. Now that I'm putting a hardtop on, I'm more motivated to stiffen the springs. I'm guessing the H&Rs with thick spring pads is the answer. (2) 10 mm pads would take away most of the lowering effect of the springs. Do they make thicker pads for the front? I haven't found any. ..... Any other suggestions?

[MIKYZZ4]

have you looked at H&R OE SPORT springs vs lowering springs ?

I'm not sure of the front pad, I'll check into it.

[bluptgm3]

I'm not sure of the front pad, I'll check into it.

It appears as though - The Canadian 1996+M3 shares an Upper Spring Pad (diameter) with the Euro M3 and US 1996+M3. Canada got virtually the same M3 as the US 1996+M3. The 1996+M3 shares the same Upper Spring Plate 31332227903 with the Z3M...or M Z3.
Canadian cars SPRING PAD UPR 9MM 31332227901

As a side bar - The US 1996+M3 has a different smaller upper spring diameter than the US 1995M3, which shares a larger upper spring diameter with all the other E36 models. (Don’t know about the Z3.) I don’t believe the p/n above fits springs for 318/323/328 or the 1995M3, only the (US) 1996+M3 (and I assume the M Z3.)

Rear Spring Pads
SPRING PAD LOWER 33531135420
UPR SPRING PAD 5MM 33531136385
UPR SPRING PAD 7,5MM 33531136386
UPR SPRING PAD 10MM 33531136387
UPR SPRING PAD 15MM 33531094754
UPR SPRING PAD 21,5MM 33531091599

have you looked at H&R OE SPORT springs vs lowering springs ?

Looks like H&R does not offer OE Sports for the Z3.
http://www.hrsprings.com/application...ts/4/185/1999/

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[zellamay]

have you looked at H&R OE SPORT springs vs lowering springs ?

I'm not sure of the front pad, I'll check into it.

I can only find HR #29520 . Some sites call them Sport Springs, or Sport Spring Set, or Sport Lowering Springs, but it's always the same part number.

[MIKYZZ4]

Unfortunately, it looks like no OE Type available per H&R website.

[BimmerBreaker]

I dont think youll need to alter the front. When BMW equipped cars with the hardtop package, they adjusted the rear suspension but not the front.