so i was wondering about extrude honing my intake manifold
according to dinan its a great mod that gets a lot of hp


High Flow Intake Manifold

Part #:

Price:
D760-0340
$899.00

Labor Units: 40
Emission Status: 50 State Emission Legal
Special Notes: Exchange price-$300 Refundable Core Deposit
Point Value: 3


Further increases in horsepower and torque are obtained by adding a Dinan High Flow Intake Manifold. The manifolds are ported and polished using the extrude hone process, then powder coated black for a dramatic, high performance look.


they seem to have taken the nice dyno charts off thier site
but speaking with someone that has done this mod and a lightweight
flywheel they say the 535i is utterly transformed in terms of power

any thoughts?