[Tech UnRaveled]

My car is an 18' 440i with 1800+ miles on it and I have already flash BM3 Stage 1 93oct.

I've ordered the following:

VRSF 4.5" Catless Downpipe
Agency Power B58 Short Ram Air Intake
Valvetronic Designs Axel Back Exhaust

I have 2 questions:
1. Can I run Stage 2 93 AGG without a mid-pipe?
2. With only 1800+ miles on the vehicle do I need to replace the plugs? I've read that I should swap them for NGK 97506.

Thanks in advance for your help.

[les anderson]

All that stage 2 requires is a high flow downpipe. The rest of the bits are not necessary, including switching out plugs.

[Jay5k]

Originally Posted by Tech UnRaveled

My car is an 18' 440i with 1800+ miles on it and I have already flash BM3 Stage 1 93oct.

I've ordered the following:

VRSF 4.5" Catless Downpipe
Agency Power B58 Short Ram Air Intake
Valvetronic Designs Axel Back Exhaust

I have 2 questions:
1. Can I run Stage 2 93 AGG without a mid-pipe?
2. With only 1800+ miles on the vehicle do I need to replace the plugs? I've read that I should swap them for NGK 97506.

Thanks in advance for your help.

1) Yes
2) No, but when I replaced mine (gapped 0.022"), I went from 32mpg to 36mpg on the highway (50mi trip on 85 cruise).

[G.Newt]

Originally Posted by Tech UnRaveled

My car is an 18' 440i with 1800+ miles on it and I have already flash BM3 Stage 1 93oct.

I've ordered the following:

VRSF 4.5" Catless Downpipe
Agency Power B58 Short Ram Air Intake
Valvetronic Designs Axel Back Exhaust

I have 2 questions:
1. Can I run Stage 2 93 AGG without a mid-pipe?
2. With only 1800+ miles on the vehicle do I need to replace the plugs? I've read that I should swap them for NGK 97506.

Thanks in advance for your help.

97506 works, but 94201 is made specifically for Gen. 1 B series modular engines. I have those in and gapped to 0.022"

[mike@x-ph.com]

Originally Posted by Tech UnRaveled

My car is an 18' 440i with 1800+ miles on it and I have already flash BM3 Stage 1 93oct.

I've ordered the following:

VRSF 4.5" Catless Downpipe
Agency Power B58 Short Ram Air Intake
Valvetronic Designs Axel Back Exhaust

I have 2 questions:
1. Can I run Stage 2 93 AGG without a mid-pipe?
2. With only 1800+ miles on the vehicle do I need to replace the plugs? I've read that I should swap them for NGK 97506.

Thanks in advance for your help.

1- Yes
2- No

Enjoy