COLLECTOR EXTENSIONS - Straight, Tapered, Slip-on Styles, Slip-on Turnouts
Almost done - pictures to be added shortly. Read the Cheap Performance Gains page for more discussion of the performance benefits of experimenting with collector lengths AND sizes by using our Straight and Tapered Bolt-on Collector Extensions.
| Tester/Tuner/Experimenter Discounts: |
Buy any two pairs of 2 1/2", 3", or 3 1/2" Straight or Tapered Collector Extensions (part numbers start with 90 or 92) and get a 20% discount off the cheaper of the two pairs PLUS 4 matching flange gaskets FREE (worth $13-$15).
Buy three or more pairs of 2 1/2", 3", or 3 1/2" Straight or Tapered Collector Extensions (part numbers start with 90 or 92) and get a 25% discount off the cheapest extension pair, 20% off all other extension pairs except for the most expensive pair which is sold at the listed Price Each multiplied by 2. Also includes 4 matching flange gaskets per pair of extensions FREE (double the amount of gaskets given FREE in the previous offer - worth $39-$45 or more!). |
Split the cost of experimenting with different collector extensions
with a friend (or two?) - particularly if your headers and your
friend's headers share the same outlet diameter - and get some of the
most inexpensive performance gains you might ever buy! |
(3 bolt flanges are standard in design and match all current header manufacturer bolt patterns.
You may double check bolt hole distances by looking at our Header and Tube Flange page.)
Inlet Diameter to Tube Diameter -
Extension Length | 3 Bolt Flange
Part Number | Part Number | Price
Each |
|---|
| MILD STEEL Straight Collector Extensions |
| 2 1/2" to 2 1/2" - 12" Long | 60 L 37 | 90 L 12 | $33.70 |
| 2 1/2" to 2 1/2" - 18" Long | 60 L 37 | 90 L 18 | $39.30 |
| 2 1/2" to 2 1/2" - 24" Long | 60 L 37 | 90 L 24 | $44.95 |
| 3" to 3" - 12" Long | 60 P 39 | 90 P 12 | $39.45 |
| 3" to 3" - 18" Long | 60 P 39 | 90 P 18 | $45.95 |
| 3" to 3" - 24" Long | 60 P 39 | 90 P 24 | $52.50 |
| 3 1/2" to 3 1/2" - 12" Long | 60 R 30 | 90 R 12 | $46.20 |
| 3 1/2" to 3 1/2" - 18" Long | 60 R 30 | 90 R 18 | $54.95 |
| 3 1/2" to 3 1/2" - 24" Long | 60 R 30 | 90 R 24 | $63.70 |
| 4" to 4" - 12" Long | 60 T 31 | 90 T 12 | $63.90 |
| 4" to 4" - 18" Long | 60 T 31 | 90 T 18 | $72.80 |
| 4" to 4" - 24" Long | 60 T 31 | 90 T 24 | $81.75 |
| MILD STEEL Tapered Collector Extensions |
| 3" to 2 1/2" - 12" Long | 60 P 39 | 92 LP 12 | $45.15 |
| 3" to 2 1/2" - 18" Long | 60 P 39 | 92 LP 18 | $50.75 |
| 3" to 2 1/2" - 24" Long | 60 P 39 | 92 LP 24 | $56.40 |
| 3" to 2 3/4" - 12" Long | 60 P 39 | 92 NP 12 | $45.45 |
| 3" to 2 3/4" - 18" Long | 60 P 39 | 92 NP 18 | $51.20 |
| 3" to 2 3/4" - 24" Long | 60 P 39 | 92 NP 24 | $57.00 |
| 3 1/2" to 3" - 12" Long | 60 R 30 | 92 PR 12 | $49.25 |
| 3 1/2" to 3" - 18" Long | 60 R 30 | 92 PR 18 | $55.75 |
| 3 1/2" to 3" - 24" Long | 60 R 30 | 92 PR 24 | $62.30 |
| 3 1/2" to 3 1/4" - 12" Long | 60 R 30 | 92 QR 12 | $55.55 |
| 3 1/2" to 3 1/4" - 18" Long | 60 R 30 | 92 QR 18 | $65.20 |
| 3 1/2" to 3 1/4" - 24" Long | 60 R 30 | 92 QR 24 | $74.90 |
| 4" to 3 1/2" - 12" Long | 60 T 31 | 92 RT 12 | $71.05 |
| 4" to 3 1/2" - 18" Long | 60 T 31 | 92 RT 18 | $79.80 |
| 4" to 3 1/2" - 24" Long | 60 T 31 | 92 RT 24 | $88.55 |
| 4" to 3 3/4" - 12" Long | 60 T 31 | 92 ST 12 | $75.15 |
| 4" to 3 3/4" - 18" Long | 60 T 31 | 92 ST 18 | $85.95 |
| 4" to 3 3/4" - 24" Long | 60 T 31 | 92 ST 24 | $96.75 |
| MILD STEEL - Slip-On Extensions |
| 3 1/4" ID, 3 1/4" OD - 18" Long | Includes 4 pairs of Weld Tabs | 94 Q 18 | $88.70/pr |
| 3 3/4" ID, 3 3/4" OD - 18" Long | Includes 4 pairs of Weld Tabs | 94 S 18 | $104.95/pr |
| 4" ID, 4" OD - 18" Long | Includes 4 pairs of Weld Tabs | 94 T 18 | $103.20/pr |
| MILD STEEL - Slip-On Turnouts |
| 3" ID, 3" OD - 12" Long | Includes 4 pairs of Weld Tabs | 95 P 12 | $91.30/pr |
| 3 1/2" ID, 3 1/2" - 12" Long | Includes 4 pairs of Weld Tabs | 95 R 12 | $106.90/pr |
| 4" ID, 4" OD - 14" Long | Includes 4 pairs of Weld Tabs | 95 T 14 | $121.80/pr |
| Additional Information |
