Hmmm tough one. Can’t really judge any of the big ticket items yet that I installed over winter…
Using my previous Elise instead I would have to say:
Best:
Suspension refurb, got rid of so many squeeks/groans/etc - made the car feel like new. Proper gelled with the car after that.
Worst:
Probably a baffled sump I got on the cheaper end of the market. It was allegedly an OEM sump with a baffle welded in, I later learned that it looked an awful lot like the OEM 1zz sump (and suspected it was one) which had the windage tray welded into the sump rather than on the block like the 2zz has. The new owner then went on to blow up the engine in that car, forensics haven’t happened yet - but based on what we retrospectively learned about the sump it certainly is a front runner.
Best mod
Weight reduction, lots of Carbon
Worst mod
Extra Big bore exhaust manifold, it cost a fortune to map back in the lost power along with new injectors, all for 3hp peak and about 10lb/ft mid range torque
If you use your car on track basically don’t, it will sound awesome but be way too noisy. The biggest issues with all the SC cars especially when you run smaller pulleys is the packing, if I were to buy another S2 I’d be buying a repackable silencer and I’d learn how to pack it properly.
Now to talk about Jim, he is a victim of his own success, he is too busy to supply everyone and has never really found partners to make his parts that the quality is good enough, he can also be very Scottish and rather brash, but his stuff he makes is amazing quality if you can get it. Would I buy from him again, god yes, I’d just expect to have to wait for it.
I guess my worst one was the katana kit, never made the power and had issues… best one is difficult… probably either the Nitrons or the 280s kit… or my new seats
Best mod was the 260 upgrade for my second S2 and the worst mod was fitting the larini race back box with inter changeable straight through or second resonator for my first S2. Without the second resonator the car would scream, don’t get me wrong it was a fantastic sound but after 15 minutes my ears couldn’t take it any more. Then after a couple of months the super charger blew the fibre glass packing out and covered the rear of the car in fibre glass filaments
Best mod on my S2 was the 260 upgrade from 240 along with the seats and harnesses, worst mod was allowing the ride height to be lowered when I upgraded the suspension, just wore holes in the wheel arches under heavy breaking. Got a full geo done and ride height raised and it drove like a dream