5 Mods you loved / 5 Mods you didn't

[heinzboehmer]

Probably. My exhaust is not too much louder than stock (modified my stock muffler, think SS sport volume) and I'm extremely pleased with my airbox. It's plenty loud for me and makes a much better noise than what I've managed to get out of the exhaust.

A good condition stock muffler popped up for free a couple months ago on craigslist and I really regret not picking it up. I really want to try the quiet exhaust, loud intake setup.

Update: Installed a stock muffler a couple months back and loving it. Highly recommend the quiet exhaust, loud intake setup.

[Yeetus]

loved:
- 996 BBK upgrade - totally changed the aesthetics of the car overnight. stopping power is better, but not otherworldly. the visual update was worth it alone though, esp the 2-piece floating rotor upgrade i did
- powdercoating my BBS RGRs gloss black, another aesthetic mod that really made me happy
- exhaust work - i have RE El Diablo, Status Gruppe Section 1, Megan Catless Headers (ceramic coated) and my car sounds amazing. my favorite out the hooptie fleet
- ground control front & rear sway bars and adjustable endlinks - these changed the way the car handles overnight in the canyons, love em!
- KWV3 coilovers - best handling set up ive ever owned

HATED:
- Avin Avant 4 - total headache and poor support from Avin. i bought all the options too...quick way to waste $800
- Catless headers (without thinking it through). at first, it was WAYYYY too loud with my El Diablo section 3. then i did a second resonator to kill the rasp, it was better. the catless smell over time killed the vibe so i recently bought some high-flow cats for my section 1. never go full catless unless its truly a dedicated track car...otherwise its just not worth it. lesson learned.
- Vorsteiner full carbon fiber hood. this was installed by the previous owner but the UV finish installed by Vorsteiner is horrendous. its peeling and cracking on all the unpainted parts. seems really low quality (and its authentic)
- Vorsteiner full carbon fiber rear difussor - again, installed by the previous owner, but this thing has never fit right and always pops out of place. annoying.

What cats did you end up going with? Im trying to get rid of the catless smell as well.

[Sharocks]

Likes:
manual Cloth interior swap, such an underrated interior choice
4.1's
V3's till they leak
stock section 3 following SS bits
CSL airbox

Dislike:
GC coilovers
SS Race sec3; everyone who runs this should be embarrassed
rep CSL trunk
V3's when they leak
Mishimoto radiator

Honorable mention shoutout goes to those fresh headlight lenses

Absolute facts, it sounds so bad.

[Obioban]

I read some good things about Wavetrac . How you like it ? I have 170k on mine and definitely need to rebuild it.

Haven’t had the car on track with it. On the street, feels identical.

It’s silent, which is nice.

[kermmmit7]

Wavetrac

I read some good things about Wavetrac . How you like it ? I have 170k on mine and definitely need to rebuild it.

[Obioban]

What’d you do to your diff?

Wavetrac

[Sid_E46]

Liked
- Synchro Design Works RTABS
- 3.91 Gears
- SSv1s
- Tckline DAs
- Dinan Muffler (got rid of the Eissenman Drone)

Disliked
- Lightweight Flywheel
- Turner Monoball FCABs (Terrible quality, binded so much)
- Smoked turn signals and tails
- "y"- pipe section 2 (Made the exhaust too loud for me and droned, had a nice tone though)
- Powerflex Poly Diff mounts

[terra]

The stock 3.62 is great. I just upgraded the diff but kept it 3.62– zero regrets.

What’d you do to your diff?

[Lavatoad]

A lot of good info in here. I've thinking about diff gearing as a next project. 3.91 or 4.11 sound fun, but I have a 45 minute to hour drive to reach any sort od fun roads, and frequently take the car on road trips. I worry the gearing would driving me insane in the freeway.

Sent from my LM-V600 using Tapatalk

[Obioban]

The stock 3.62 is great. I just upgraded the diff but kept it 3.62– zero regrets.

[jvit27]

what didnt you like about the Ohlins? I love them!

Same, I loved them at the track today and even more over garbage New England roads on the way there and home without rattling my teeth out or car apart. Just like the name suggests

The low speed velocity behaves nicely below 45mph and the DFV really makes the high speed velocity react quickly, but the medium speed valving for spirited street driving -particularly on the rear dampers- has way too much rebound, car pitches A LOT at fun speeds. Even with flatride-like spring rates, the car really doesn't settle well and in effect feels like a cheap kit. Blasphemy I know.

K how come 3.91 and ohlins make it on the do not like list. Curious.

3.91 did make the car a bit more fun on the street, especially mine being SMG, but one of the best things about the S54 is the top end pull in 3rd. Highway rpm's are obviously a little buzzier, but the actual gear whine bothers me more. Since 3.91 is a Motorsport gearset this is just the nature of it.

Is it bad? Not at all. But I don't think the mild concessions were worth it for my use case scenario. If I were to do it again i'd go 3.73 (rare) or 3.85 (E9x M3). But FWIW I always liked the stock 3.62 to begin with; IMO putting the car on a 250+ lb diet is a better route.

[fattycharged]

Likes:
manual Cloth interior swap, such an underrated interior choice
4.1's
V3's till they leak
stock section 3 following SS bits
CSL airbox

Dislike:
GC coilovers
SS Race sec3; everyone who runs this should be embarrassed
rep CSL trunk
V3's when they leak
Mishimoto radiator

Honorable mention shoutout goes to those fresh headlight lenses

[jbfrancis3]

K how come 3.91 and ohlins make it on the do not like list. Curious.

Same here.

[CrisSilberGrau]

Likes:
-Better seats
-Carplay
-Dinan exhaust
-faster steering rack
-weight loss

Dislike:
-Ohlins R&T
-Supersprint exhaust
-3.91 gears
-Cold air intake
-new OEM floormats (quality has gone to shit)

K how come 3.91 and ohlins make it on the do not like list. Curious.

[Toby22]

Not many on this forum are installing junk parts on their car. We are definitely a cut above and there is a healthy amount of mechanical and computer expertise here as well since most all of us are so inclined. This place is not stance nation, not even close.

you’re right about the cars here 🙌🏼