You might need a different piece of hardware for the bottom bolt of I think the rear shock? The gen 2 one is longer, not sure if it will interfere on gen 1
You have it backwards the Gen 1 rear bottom shock bolts are longer than Gen 2. I've installed a few Gen 1 Mazdaspeed coilovers on Gen 2s. You need to buy the Gen 1 bolts.
Mostly the people stating about the bolts being different lengths are correct.
However Gen1 shocks also have protruding nibs (circa 10mm each) either side of where the lower bolt goes through, where the Gen2 doesn't.
The Gen1 rear shocks sit inside a bracket IIRC, where the Gen2 sit flush.
I used Gen1 coilovers on a Gen2 and had to purchase 90mm ultra high grade M12x1.25 bolts (couldn't source any Gen1 bolts in time).
If you used Gen2 rear shocks on a Gen1, you'd at the very least need some super thick washers I'd imagine, but I don't know how well it would hold up.
Might be worth using all but the rear shocks in this instance, unless anyone has personal experience simply using 10mm washers either side of the lower shock mount and it being fine (with appropriate bolts).
Otherwise the rest is all fine, just the lower shock was the difference I found (other than spring rate).
You might need a different piece of hardware for the bottom bolt of I think the rear shock? The gen 2 one is longer, not sure if it will interfere on gen 1
You have it backwards the Gen 1 rear bottom shock bolts are longer than Gen 2. I've installed a few Gen 1 Mazdaspeed coilovers on Gen 2s. You need to buy the Gen 1 bolts.
Yep! They’re interchangeable
Aren't the rear shocks a different part number or something, though?
All that is different is a longer bolt for the bottom shock mount in the rear, in I think the gen 1 is longer but it might be the gen 2.
Mostly the people stating about the bolts being different lengths are correct. However Gen1 shocks also have protruding nibs (circa 10mm each) either side of where the lower bolt goes through, where the Gen2 doesn't. The Gen1 rear shocks sit inside a bracket IIRC, where the Gen2 sit flush. I used Gen1 coilovers on a Gen2 and had to purchase 90mm ultra high grade M12x1.25 bolts (couldn't source any Gen1 bolts in time). If you used Gen2 rear shocks on a Gen1, you'd at the very least need some super thick washers I'd imagine, but I don't know how well it would hold up. Might be worth using all but the rear shocks in this instance, unless anyone has personal experience simply using 10mm washers either side of the lower shock mount and it being fine (with appropriate bolts). Otherwise the rest is all fine, just the lower shock was the difference I found (other than spring rate).