318is M3 conversion.

[arpecker]

Is buying a used 318is with high mileage and doing a M3 motor swap a good or bad idea? does anybody know how much this would cost? would it be cheaper than an M3? or is this a really dumb idea?

[Lovinbms]

Not a dumb idea, but will require LOTS OF BENJIs time and effort

[Lovinbms]

Alot of people will discourage you from doing it. You can find a reasonably priced 1995 m3 inn alot of places.

Cons:
1. Need to buy after market skirts, front spoiler, rear spoiler, mirrors, seats, rims

Pros
1. 318 insurance. This is ideal in a state that doesn't have inspections.

You will need:
1. M3 engine preferably 1995...because 1996 cars and up had OBD II, unless your 318 is newer and has OBD II 3,000-5,000
2. m3 catalytic converter, M3 muffler 300-450 for cat 150 muffler
3. M3 brakes calipers, spindles, rotors both front and back. 400-800
4. M3 suspension: Includes struts, springs, sways(if you want) 400-500
5. Optional(m3 transmission, driveshaft, differential) You can use your stock 318 tranny and other parts but they will wear out faster.
800-1500. Especially if you're MR. heavy leadfoot.

6. A mechanic who can do it for 2,000-3,000.

[arpecker]

Originally posted by Lovinbms
Alot of people will discourage you from doing it. You can find a reasonably priced 1995 m3 inn alot of places.

Cons:
1. Need to buy after market skirts, front spoiler, rear spoiler, mirrors, seats, rims

Pros
1. 318 insurance. This is ideal in a state that doesn't have inspections.

You will need:
1. M3 engine preferably 1995...because 1996 cars and up had OBD II, unless your 318 is newer and has OBD II 3,000-5,000
2. m3 catalytic converter, M3 muffler 300-450 for cat 150 muffler
3. M3 brakes calipers, spindles, rotors both front and back. 400-800
4. M3 suspension: Includes struts, springs, sways(if you want) 400-500
5. Optional(m3 transmission, driveshaft, differential) You can use your stock 318 tranny and other parts but they will wear out faster.
800-1500. Especially if you're MR. heavy leadfoot.

6. A mechanic who can do it for 2,000-3,000.

so should i get a high mileage M3? I'm getting 1997 328Is (i think i'm undecided) i want the power of an M but i dont think i can afford it.... Help me out ?

[Lovinbms]

Why don't you just get a 325i and put a super charger on it???? and up grade the suspension and brakes. Your ride can compete with the M without the insurance costs. Its probably even better getting a used 325 than a 318...if you want to convert to an M3.

Eman