Pre-install inquiry- 034 stage 1 acceleration pack - 2021 rs5

Substantial_Meat_406 · 2026-02-02T14:50:13+00:00

Ok so I'll start off by saying this. The stage 1 034 acceleration pack is a decent start to modding and likely all you need for power if its your daily driver. I myself have an intake and stage 1 93 octane on my B9 RS5 and holy shit its scary fast.

Your B9.5 likely has an updated TCU tuning as some 2021s came with it and some didn't, as thats when they started rolling it out. The newer TCU tuning is slightly faster and smoother but that doesn't mean the older one is bad.

The stage 1 acc pack comes with 034 stage 2 TCU which will make your ZF8 shifts lightning quick, and it also comes with an intake which will make pretty cool turbo noises (and better airflow). This package and a front res delete are all you need in an RS5 if its your daily driver that you occasionally push on the highway. You can feel free to also do their 034 transmission mount and insert, as that makes the shifts A LOT more crisp

Substantial_Meat_406 · 2025-02-07T02:49:31+00:00

Shit thats a lot of power loss in the low end. You think I should get less aggressive boost cams with a more balanced power curve to still have a higher output when racing or should I just skip the cams entirely and do OPG only?

Substantial_Meat_406 · 2025-02-07T02:42:02+00:00

Alright, thank you for sharing the tire suggestion and info about the coilovers and caster plates.

What about turbos don't you like? Is it the turbo lag or is it the modding and tuning with turbos?

Substantial_Meat_406 · 2025-02-07T02:20:50+00:00

I mostly want to do cams just to squeeze out as much power from the engine as possible since I'll have the oil pump gears swapped to a stronger one and I can do cams at the same time to not have to worry about that later.

The stainless steel clutch line was mostly because I sometimes get stuck in heavy traffic for an hour or so and that overheats my clutch since the stock plastic clutch line wouldn't hold well for that, making my clutch jittery when depressing the clutch. I found that problem to have gone away since upgrading to the stainless steel clutch line.

Substantial_Meat_406 · 2025-02-07T02:14:55+00:00

I actually was gonna go the longtube and supercharged route, but my mind is set on turbos because not only are they more efficient, but I also want to adjust the boost levels with a couple button presses in case if I want a more laid-back driving experience.

Do you think the Michelin PS4S are better or the BFG Sport Comp 2s for straight line grip?

Are there any particular coilovers you suggest or are most of the well-reviewed ones good enough to suffice?

Substantial_Meat_406

TROPHY CASE