SL/R231: SL63 Mods Update
The biggest improvements have been replacing the subs in the footwells with more powerful JL's, the sound is incredible now from them; Performance wise the ECU and Cold Air intake have made performance meaningfully better, especially after I replaced the spark plugs with cold ones. The tires break loose now on a moderate launch and never did that before. I couldnt get a feel for the right launch at the dragstrip because tire spin simply wasn't an issue before these mods, but I'll practice and get better at it. I'm told these catless downpipes will make the car sound much better (I was fine with the current sound), but will also noticibly improve performance. There's a 1/2 mile dragstrip event this weekend so I'll see how it goes there after these pipes are in.
Carmine Red Vinyl Wrap with custom paint accents (Car was originally black/black)
Vinyl Wrap and Tint Removal + Clear Bra
ECU Stage 3 remap
M157 BiTurbo Cold Air Induction Kit
Post ECU tune Dyno RWHP
98.2 mph in 1/8th mile with ECU and UPD Cold Air Induction Kit
98.2 mph in 1/8th mile with ECU and UPD air intake
Catless Downpipes (Installing today)
10" SUB (#3) behind driver's seat
4 (3-way) Crossover pre-amp for center channel delete and front/rear component staging
Modified Depth/Replace Footwell Subs with JLs
Modified Depth/Replace Footwell Subs with JLs
Factory mid/tweets replaced with 3-way components in front and rear
Dynamat treatment throughout doors/footwells for subs and components
Factory Tweeter Replacements
Dynamat treatment throughout doors/footwells for subs and components
On another note, which tune are you running? What were your stock dyno numbers and do you have the performance package? Keep up the good work.


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