Supersprint headers claim 30hp

[DarkstarZero]

Originally Posted by shift@red

Im not saying you cant get decent power...my m3 was 310+ rwhp...no slouch by any means...but considering the amount that went into it all...id rather have just bought something that was seriously fast (and much fastER) like a 997S or 911 turbo...

Well I don't plan on spending more than $800 per mod. Total cost when everything's complete shouldn't be more than $4,000. And I don't think I could have bought a better car for an extra $4k. But then again, I am doing this now while most people are turning in their lease and selling their mods for cheap

[krnnerdboy]

Originally Posted by shift@red

Im not saying you cant get decent power...my m3 was 310+ rwhp...no slouch by any means...but considering the amount that went into it all...id rather have just bought something that was seriously fast (and much fastER) like a 997S or 911 turbo...

I completely agree, but the OP just asked if there were any experiences or reviews on the product...BTW I traded "down" from my 997 to my z4m, but I must say it was the most enjoyable down grade

[O-cha]

Originally Posted by Starscream

Im sure any decent shop can do it in a few hours,
No installation hardware inside the diff is BMW specific, (bearings and shims I'm talking) so any shop specializing in diffs can do it with in stock parts,

Whoa whoa whoa, at first I thought you meant diff swap in a few hours but you mean full diff build and swap? Not going to happen.

[Starscream]

Originally Posted by O-cha

Whoa whoa whoa, at first I thought you meant diff swap in a few hours but you mean full diff build and swap? Not going to happen.

Sorry I should have been more specific,

Yes Diff take out, swap gears, and replace WILL be longer than a few hours lol,

If the diff is out and you bring it to a shop then yes a few hours to replace gears and set up the diff

[O-cha]

Originally Posted by Starscream

Sorry I should have been more specific,

Yes Diff take out, swap gears, and replace WILL be longer than a few hours lol,

If the diff is out and you bring it to a shop then yes a few hours to replace gears and set up the diff

Yea ok lol, I was like just taking the diff out and putting it back in can take a few hours, especially in the z4 where there's a lot more other crap that has to come off.

[Starscream]

Originally Posted by O-cha

Yea ok lol, I was like just taking the diff out and putting it back in can take a few hours, especially in the z4 where there's a lot more other crap that has to come off.

Yes I was surprised by just how much lower body trim and hardware came out just for that swap!
Not to mention exhaust, heat shields, braces, etc,

Least it gave me a chance to polish it all up before I put it back

[DarkstarZero]

That turns the relatively cheap $800 4.10s into a very expensive mod. I think I'm going to have to find a guy that knows a guy...