E24 635CSi Turner Motorsport Conforti Performance Chip

The M30 3.5 inline-6 is a torquey motor, however it could be a little more powerful in the upper RPM range. With a Turner/Conforti Performance Chip power is boosted at all RPM with over 20ft-lbs of torque gain at only 2000 RPM. This chip was tuned on the dyno to yield as much performance from this engine as possible and still maintain its strength and durability. Jim Conforti tuned the fuel and spark maps to take advantage of 91 octane gasoline.

Turner Performance Chips provide the ultimate in performance advantage! Adding a performance chip to your BMW is the easiest and most cost effective way of increasing BMW power, torque, and performance with NO DOWNSIDES. Through years of BMW performance tuning, we are able to maximize power and torque gains for 91 octane fuel used in North America. By making changes in the ignition and fuel maps of the DME we are able to optimize performance with no side effects or compromises. Other changes will make your BMW smoother and more responsive than when it left the factory. Our chips have a lifetime warranty and a 30-day satisfaction guarantee. If for any reason you are not fully satisfied with the increase in power and overall drivability you can return the chip to Turner Motorsport for a full refund. Chips are supplied with detailed instructions and are user-installed in about an hour. See below for specific information that we may need from your BMW model.

Read other's impressions:
"I went with the Conforti that I bought from Turner and am very happy with it. There is no noticeable (to me) change in fuel consumption. I have slightly better pop in lower gears where , gawdknows, the car really needs it and the car certainly pulls faster and stronger at the top end." - Taylor, Montreal, Canada.

"I have just installed the Conforti/Turner chip, actually increased my gas mileage by 1 mpg, but the power curve is much better and the movement of the point in the RPM bad where the engine limits itself is so much nicer. I am very happy with the change." - Rick, California.

"I tried Dinan and BavAuto�I like Jim C's the best." - Joe, Connecticut.


1985-1988 635CSi M30B34 Horsepower Gain: +24 @ 5,000 RPM Torque Gain: +29 @ 2,000 RPM New Rev Limit 6,600 RPM 1989 635CSi M30B35 Horsepower Gain: +43 @ 6,250 RPM Torque Gain: +21 @ 2,000 RPM New Rev Limit 6,800 RPM

Required Vehicle Info E24 635CSi 85-89 Bosch ECU part number, beginning with "0 261" For Bosch ECU "0 261 200 059", we need to know the number of pins on the original chip. manual or automatic transmission

This performance chip fits the following BMWs:
1985-1989 E24 BMW 635csi
T#: 340130 | Part#: E24635
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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Starting at $199.20
199.20
SALE: $199.20 (20% OFF)
WAS: $249.00 on 05-03-2026

This product was last offered at the strikethrough price on
05-03-2026

This product is backed by our
Lifetime Replacement Program! Read more here
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Turner Conforti Performance Chips E24 635CSi Turner Motorsport Conforti Performance Chip E24635
I have a 1988 with a manual transmission
Turner Conforti Performance Chips - Corporate Logo
T#: 359481
|
Part#: 150-000
Availability:
In Stock
Est. Ship Date:
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Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Sale - Save 20%
$249.00

This product was last offered at the strikethrough price on
05-03-2026

$199.20
Qty: 1
Turner Conforti Performance Chips E24 635CSi Turner Motorsport Conforti Performance Chip E24635
I have a 1988 with an automatic transmission
Turner Conforti Performance Chips - Corporate Logo
T#: 359484
|
Part#: 150-010
Availability:
In Stock
Est. Ship Date:
in 3 Business Days
Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
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$249.00

This product was last offered at the strikethrough price on
05-03-2026

$199.20
Qty: 1
I will select a different year.
Turner Conforti Performance Chips E24 635CSi Turner Motorsport Conforti Performance Chip E24635
I have a 1989 with a manual transmission
Turner Conforti Performance Chips - Corporate Logo
T#: 359522
|
Part#: 179-600
Availability:
In Stock
Est. Ship Date:
in 3 Business Days
Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Sale - Save 20%
$249.00

This product was last offered at the strikethrough price on
05-03-2026

$199.20
Qty: 1
Turner Conforti Performance Chips E24 635CSi Turner Motorsport Conforti Performance Chip E24635
I have a 1989 with an automatic transmission
Turner Conforti Performance Chips - Corporate Logo
T#: 359550
|
Part#: 179-610
Availability:
In Stock
Est. Ship Date:
in 3 Business Days
Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Sale - Save 20%
$249.00

This product was last offered at the strikethrough price on
05-03-2026

$199.20
Qty: 1
I will select a different year.
I will select a different year.
Turner Conforti Performance Chips E24 635CSi Turner Motorsport Conforti Performance Chip E24635
059 ECU with 24-pin chip
Turner Conforti Performance Chips - Corporate Logo
T#: 359456
|
Part#: 059-240
Availability:
In Stock
Est. Ship Date:
in 1 Business Day
Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Sale - Save 20%
$249.00

This product was last offered at the strikethrough price on
05-03-2026

$199.20
Qty: 1
E24 635CSi Turner Motorsport Conforti Performance Chip
$199.20

Previous Revisions
  • E24635